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tall thistle identification

pollen also thistles are in bloom at about the same time of year and their erect Florida Thistle Identification Pictures . The Tall Thistle is a native thistle of the tallgrass prairie. Creeping Thistle by AnRo0002 / CC0 This plant can typically grow up to 1.5 m (5 ft) height, forming vast clonal colonies from the expanded root system that send up several vertical shoots throughout the growing season. Creeping thistle will grow in all manner of waste-ground, grasslands, verges and field edges. Cultivation: see Clark et al. root system consists of a taproot. Infestations may be localized or not, but proper identification is super important. midrib; it has a dark tip, where a fine spine projects outward. Although the Tall Thistle is less The alternate leaves are up to 9" long and 3" across, Thistles of Nebraska Pla ©e Thistle Cirsium canescens Nu ©. Each bract has a ¼ inch long soft needle-like spine at the tip that sticks straight out. Herbaceous plants are also known as forbs or wildflowers There are 58 species of Cirsium thistles native to North America. Also Called: Roadside thistle. Description Appearance. Also like dandelions, the wind blows the light seeds so they continue to spread … sparingly branched. Globe thistle is cold-hardy in USDA zones 3 to 8. (2004), Marshall (2006), Cranshaw (2004), Funkhouser Tall they have dense mats of white-woolly hairs. The Tall Thistle is a Herb. Large population, many plants on the order of ten feet tall. of the flowerheads become masses of bullet-shaped achenes with tufts of Tall Thistle is See the glossary for icon descriptions. roadsides. The flowers of thistles are typically shades of pink, lavender and purple, sometimes they’re white, and some species have yellow or red flowers. tall thistle. It is four feet tall with a one inch flower as compared to the August and September blooming Tall Thistle which are commonly six or more feet tall with two inch flowers. The tall thistle is also unique in that it flowers in the fall instead of the summer or spring. Milk thistle has green hairless leaves with white veins. The leaf Thanks for your understanding. These prickles are an adaptation that protects the … Bull thistle is a biennial herbaceous plant. These insects include Oulema Sphinx moths, including hummingbird clearwing moths (Hemaris spp.). Many insects feed on the leaves, stems, flowers and seeds, while some songbirds also feed on thistle seeds. Thistle Plant Identification undersides of the preceding native thistles are bright white because Tall Thistle can be found in both disturbed and undisturbed Milk Thistle Identification. The All of these tall-growing American Goldfinch also uses thistle-down to line its nests (Martin et If invasive thistles are not present, use of feed and hay from infested areas should be avoided. flowerhead has a multitude of small disk florets that are pink to Have you seen this plant in Minnesota, or have any other comments about it? The upper stems Comments: Identification and growth form: Musk thistle likely is the most easily identified invasive thistle in North Dakota, yet many people confuse this plant with either bull thistle or plumeless thistle. Of all the native thistles, this has the softest spines with all parts of the plant readily touched by the fingers. resembles Cirsium discolor (Pasture Thistle) and Only the tall native thistle blooms in September into October. The caterpillars of two butterflies, Calephelis muticum The native Tall Thistle is occasional throughout Illinois (see Distribution While Tall Thistle as been described as attaining nearly ten feet in height, found in a variety of open spaces, including disturbed sites, we have encountered it only in fairly deeply shaded woods of southeastern Minnesota and never much over 6 feet tall. (a treehopper), and Location: This thistle is 80 to 200 centimeters (about, 31 to 79 inches) tall. As the common name suggests, this thistle can become quite tall. See Terms of Use and Privacy Policy. The tall thistle’s leaves are green and mostly hairless on the upper surfaces, with white fuzz on the lower surfaces. across. flowerheads are usually fragrant. Its presence on the prairie is celebrated as a sign of a healthy and biodiverse tallgrass prairie ecosystem. Is there a way to upload pictures here? How to tell globe thistle and milk thistle apart. Undersides of leaves are velvety white with fine hairs, the upper surface with stiffer short hairs. Where in Minnesota? Help support this site ~ Information for sponsor opportunities. After the blooming period, the entire Herbaceous plants are also known as forbs or wildflowers Herbs are broad-leaved, herbaceous (non-woody) plant. There are many other yellow members of the daisy family with flowers similar to those of the Dandelion. It produces yellow flowers with red veins borne in spiny heads. Leaves: Very spiny stems and leaves. In Minnesota it has a patchy distribution in the lower two-thirds of the state and is never common. The flower heads are shaped like compact purplish shaving brushes. Along a woodland path at Fox Ridge State Park in east-central Illinois. Tall Thistle Plant . Upper leaves become smaller and more lance-like with larger spine tipped lobes. of each leaf is green with appressed white hairs, while the lower Tall Thistle (Cirsium altissimo) Blooming from late summer into fall, in the central and eastern United States, the Tall Thistle can reach heights of eight feet, and is found on uncut roadsides, fields and pastures and the margins of wooded areas. Canadian thistle is also difficult to control and can quickly infect gardens and fields. alternate leaves and becomes about 3-8' tall. Habitats include open deciduous woodlands, woodland 1st year, it consists of a low rosette of leaves spanning about 1' Bull thistle has prominent, sharp spines on each of the leaves narrow, pointed lobes. But the real reason I'm commenting is to ask if all of the photos are really of this plant. spines along their margins like the leaves. The blooming period occurs During the 2nd year and thereafter, it develops stems with Leaves are alternate, up to 18 inches long and 8 inches wide. Long, sharp spines on the leaves at the midrib and the tips of the lobes 4. often more deeply pinnatifid. each leaf is sessile or clasps its stem slightly. Now that all of these TALL plants are blooming, only the 1 west of me is likely Tall Thistle. It Slate-colored Junco, and Indigo Bunting eat the seeds of thistles; the each lobe or dentate tooth, there is usually a spine. destructively on the foliage, sap, and other parts of Cirsium spp. The plant is also known as "nodding thistle" due to the large, drooping inflorescences. The flower heads are light purple and shaped … Identification. spiny. The large beautiful purple to pink colored flowers attract many butterflies, moths, bees and other insects. The lower leaves may wither During the 2nd year and thereafter, it develops stems with alternate leaves and becomes about 3-8' tall. Bull thistle grows in disturbed areas such as pastures, roadsides and ditches. ), Painted Lady plant begins to wither away and turns yellow to brown. An It should not be difficult to distinguish from other thistles with its broad-elliptic, unlobed leaves. borealis (Northern Grasshopper), Entylia bactriana Photographic Thistle is the common name of a group of flowering plants characterised by leaves with sharp prickles on the margins, mostly in the family Asteraceae. Map of native plant purveyors in the upper midwest. Caution: Plants have spines along leaves and stems. such aphids as Brachycaudus Thistle Weeds Identify . These leaves are itself. Helen, it is possible you have the more common field thistle, Cirsium discolor. becoming gradually smaller as they ascend the stems. Seeds: A single plant can produce up to 120,000 seeds annually, with seeds remaining viable in the soil up to 5 years. lanceolate, oblanceolate, or elliptic in shape; their margins are (Bumble Flower Beetle), Melanoplus Where to find thistles. The weed milk thistle, its spitting image, is common throughout North America, and both reseed readily. Another noxious thistle, it has large, spiny leaves and flowers, which turn reddish-purple. Tall thistle may be confused with the earlier flowering musk thistle. Floral bracts are flat, green with a white stripe down the center and somewhat resemble fish scales. Cirsium altissimum Smooth Sow-thistle and Common Sow-thistle often hybridise, resulting in plants with slightly prickly leaves. (Swamp Metalmark) and Vanessa floral scales (phyllaries) that partially overlap each other. Bull thistle is a biennial plant that can grow up to six feet tall. Stems are ridged and covered with crisp, bristly hairs but are not spiny; branching is in the upper portions of mature plants. At the base of these floral bracts surrounding the stalk are several narrow leafy bracts. Rosettes form in first year, flowering stems the second 3. Was there something different about what you saw at Quarry Park SNA? The roots are white and run horizontally just beneath the surface of the soil. Now that my few thistles are blooming, I see that they do match up with C. discolor. Pink-magenta flower heads top each stem 7. It's over 6 feet (>1.8 m) tall at this time, and looking rather wilted today in the heat. The undersides of tall and field thistle leaves are hairy and white, with field thistle having leaves more deeply divided by numerous lobes. It occurs in the United States east of the Great Plains and in southern Quebec. (Melissodes spp. 1. The native Pasture Thistle prefers habitats that are more dry entire, slightly dentate, or shallowly lobed. fertile loam, clay-loam, or sandy-loam soil. significantly depending on environmental conditions. Your email address: (required) savannas, thickets, swamps, meadows, areas along railroads, and The base of If left to grow, this type of thistle can reach about 4 feet tall and will have soft, green, spear-shaped leaves that are covered with barbs. The non-native thistles are easily distinguished by their sharp spines, especially along the stem. 1st year plants are similar to the alternate leaves, except they are Other: Tall thistle is some mes confused with field thistle which grows in the extreme eastern Great Plains. The prickly sow-thistle, Sonchus asper, is similar but its leaves are generally greener and with sharper spines. Proper identification of thistles and timely decisions about their control is essential. Native thistle provide important habitat and food sources for native fauna. Tall Thistle (Cirsium altissimum) Description: This wildflower is a biennial or short-lived perennial. habitats; it is found in wooded habitats more often than other thistles. The terminate in individual flowerheads spanning about 2" across. You can identify the Scotch thistle, Onopordum acanthium, by its hairy, greyish blue foliage. wildflower is a biennial or short-lived perennial. reddish brown, terete with several longitudinal ridges, and Thistles can be biennial, short-lived perennial or annual. Basal and lower leaves may be deeply lobed or have no lobing, and taper to a winged stalk. Tall Thistle and Pasture Thistle, the Bull Thistle has leaf undersides Underneath each flowerhead, there are 2-3 small leafy bracts with Tall Thistle (Cirsium altissimum) Later than the normal bloom for the Tall Thistle this late arrival is somewhat stunted. Fritillary butterflies (Speyeria spp. C. altissumum has not been recorded in Stearns County but C. discolor has. The Creeping thistle is our most common species of thistle and can be found on disturbed and cultivated ground, such as rough grassland, roadside verges and field edges from June to October. The tall thistle is also unique in that it flowers in the fall instead of the summer or spring. Associations: borders, thinly wooded rocky slopes, areas along woodland paths, This perennial can reach 5 feet tall. small floral scale is lanceolate-ovate and dark green with a white slender lobes. Flowers are purple to pink, rarely white, 1 to 2 inches wide. Leaves are deeply lobed and hairy - there are coarse hairs on leaf tops, making leaf feel rough to the touch, and woolly hairs on the underside 5. The floral bracts and white undersides of leaves are much the same as Field Thistle (Cirsium discolor), which has deeply lobed leaves all the way up the stem. During the 1st year, it consists of a low rosette of leaves spanning about 1' across. al., 1951/1961; DeVore et al., 2004). I thought there were 1 to the west of me, 5 across to the east of me, and 1 more between the paving and lawn a half mile farther north (all on private property near Hwy 3 & Cty Rd. Stems have a winged appearance. The disk florets Identification: Tall thistle is an erect, robust, biennial or short-lived perennial forb that rises on a single stem from a slightly thickened taproot and fibrous roots. For info on subjects other than plant identification (gardening, invasive species control, edible plants, etc. other common thistles, except that its leaves are less pinnatifid and The sow-thistles are easily distinguished by the shape of their leaves. Above: Misty globe thistles (Echinops ritro) by Isidre Blanc via Wikimedia.The gentler cousin to the Scottish thistle, non-invasive globe thistles (Echinops ritro) are ideal for the garden.With deep blue or violet orbs perched on silvery stems that are from 2 to 4 feet tall, globe thistles provide a striking architectural and textural element to the garden. and sunny, but it is also sometimes found in wooded habitats. This thistle is widely distributed, but usually isn't 71). The base of the flowerhead is surrounded by numerous elaeagni (Artichoke Aphid), and Uroleucon cirsii (Large Most of these invasives bloom earlier in May and June. Range & Habitat: thistles (Opler & Krizek, 1984; Wagner, 2005), as do the caterpillars of several moths (see Moth Table). Perhaps what you saw was C. discolor? Faunal Musk thistle often grows in excess of 6 feet tall, has very large flowers that tend to droop, and the flower has very characteristic brown bracts that resemble a pine cone. surface is covered with a dense mat of white-woolly hairs. Each Reminds me of a thistle, but it doesn't really have that many barbs, and the ones that it has don't prick my finger when I touch them. cottony white hairs. Canada thistle spreads by seed and an extensive root system. ), please check the links and invasive species pages for additional resources. They have sharp spines especially along the stem. Prickles can also occur all over the plant – on the stem and on the flat parts of the leaves. While Tall Thistle as been described as attaining nearly ten feet in height, found in a variety of open spaces, including disturbed sites, we have encountered it only in fairly deeply shaded woods of southeastern Minnesota and never much over 6 feet tall. The size of this plant can vary The nectar of the flowerheads attracts bumblebees, long-horned bees The American Goldfinch, Clay-colored Sparrow, Pine Siskin, flowerheads are pink to purplish pink. At the pointed tip of The upper surface protection from hoofed mammalian herbivores. butterflies (Vanessa spp. Field Thistle Identification. preference is full sun to light shade, moist to mesic areas, and a where it occurs. Your Name: inda (2008). This Thistle), also prefers habitats that are more dry and sunny; it is even purple thistle bud image by Roman Ivaschenko from Fotolia.com Identify the tall thistle (Cirsium altissimum) by its extreme height, with stems that grow up to 10 feet tall, making it one of the tallest thistle species. (Thistle Tortoise Beetle), Euphoria purplish pink. Thistles have all disc flowers that are shaped into long tubes. Identify the tall thistle (Cirsium altissimum) by its extreme height, with stems that grow up to 10 feet tall, making it one of the tallest thistle species. Field thistle has more deeply pinna fid stem leaves with linear-lanceolate lobes. Bull thistle is distasteful to most grazing animals, giving the thistle a competitive edge. Stems: Erect, large, coarse, branched above, greenish, pubescent. An email address is required, but will not be posted—it will only be used for information exchange between the 2 of us (if needed) and will never be given to a 3rd party without your express permission. Canadian thistle grows a round purple flower that quickly turns into a white dandelion-like seed. Distaff thistle is a spiny annual growing to 3 1/2 feet tall. Flowers: Plants have large disk shaped, showy red to purple flower heads, that droop when mature. John, while we can't say we never make mistakes, all the photos on this page are Cirsium altissimum. Wooly thistle. away prematurely at a dry sunny site. The nectar and pollen of native thistles are incredibly valuable food sources to bees, butterflies, and other pollinators. If plants do appear, they should immediately be destroyed by chopping them off below ground or spraying them with a herbicide before they set seed. Description: It should not be difficult to distinguish from other thistles with its broad-elliptic, unlobed leaves. Swallowtail butterflies (Papilio more tolerant of shade than other thistles. Tall thistle is a native thistle that can grow to be 10 feet tall! pubescent-woolly. It's not in bloom yet but still striking. Canada thistle(Cirsium arvense) is an introduced pe- rennial thistle that is widely distributed in Nebraska and other northern states. The basal leaves of Herbs are broad-leaved, herbaceous (non-woody) plant. I'm kind of curious about whether it will flower, and I decided to let it grow this year for identification. That is what I must have seen in Quarry Park, since the ones I saw there looked like the ones I have here. Aster family (Asteraceae). I also see a lot of spear thistle in similar habitats, although when found in grassland, it's not as abundant as the creeping species. Rosette leaves of musk thistle usually have silvery margins that simplify identification. Note: All comments are moderated before posting to keep the riff-raff out. Web design and content copyright © 2006-2020 MinnesotaWildflowers.info. Map). The central stem and side stems are light green to Mid leaves become smaller and unlobed, more lance-elliptic with small spiny coarse teeth and little or no leaf stalk. Identify Thistle Varieties . cardui (Thistle Aphid), Capitophorus The group of 5 is wild lettuce, we think. The root systems explain why; spear thistle has a tap root, whereas creeping thistle grows on rhizomes. heavily armed with spines than some thistles, they provide some Photos by K. Chayka and Peter M. Dziuk taken at Whitewater State Park and Wildlife Management Area in Winona County and in a private garden in Ramsey County. cardui (Painted Lady), also feed on Each About 200 species are known worldwide from North America, Europe and Asia. The Tall Thistle (Cirsium altissimum)ranges from 4-5 feet in height with dark to light purple flower heads. Leaves: Alternate, simple, short stalked or sessile, lanceolate to elliptic, 4 to 12 inches long, 1.5 to 4 inches wide, green and nearly glabrous above, densely white-woolly below; margins slightly lobed to spiny-toothed; tips pointed; upper leaves reduced in size. Think I saw it on field trip with the Native Plant Society on June 26, 2016 in wooded areas of the Quarry Park SNA. palustris (a leaf beetle), Cassida rubiginosa Click on an acronym to view each weed list, or click here for a composite list of Weeds of the U. Other insects feed So how do you know which one’s sprouting in your garden? ), and These stems are usually Thistle al. aggressive Eurasian species, Cirsium vulgare (Bull Is this the first instance of Tall Thistle in Dakota County?? Thistle Aphid); Each floret has a tubular corolla that divides into 5 Branching, erect biennial, 2 to 6 feet tall 2. The 1 farther away bloomed a few weeks ago and had "the down of a thistle" - I will check next year. Its stalks are smooth, green, branched, and mostly lack spikes. beetles (Robertson, 1929; Graenicher, 1907). Flowering Time: June - September. During the ), To identify it, notice its leaves, which are unlobed (though they may be wavy or have only shallow, broad lobes), are felty-hairy beneath, and have prickles only along the edges. more heavily armed with spines than the Pasture Thistle. (thistles). Unlike the that are more green because they are less densely hairy. This wildflower spreads by reseeding This plant and the related entity italicized and indented above can be weedy or invasive according to the authoritative sources noted below.This plant may be known by one or more common names in different places, and some are listed above. common (1917), and Brust et Funding provided by the Minnesota Environment and Natural Resources Trust Fund as recommended by the Legislative-Citizen Commission on Minnesota Resources. ), This species is a serious threat to range and pastures, due to its spiny nature. Leaf bases extend down onto stems and form spiny wings along the stems 6. Canada thistle has small purple flower heads found in clusters, and the bracts beneath the flower heads do not have spines. Flower heads are few to many at the tips of branching stems in the upper plant. spp. The Minnesota Environment and Natural Resources Trust Fund, shade, sun; woods, thickets, fields, roadsides, waste areas. from late summer to early fall and lasts about 1–1½ months. Comment (max 1000 characters): Note: Comments or information about plants outside of Minnesota and neighboring states may not be posted because I’d like to keep the focus of this web site centered on Minnesota. Pick an image for a larger view. These achenes are distributed by the wind. attracts Halictid bees and other bees, Syrphid flies, and various Its creeping roots enable it to quickly spread across an area, forming large colonies. Since the ones I saw there looked like the ones I have here, more lance-elliptic with small spiny teeth. Is in the fall instead of the tallgrass prairie in shape ; their margins are,... Less pinnatifid and spiny … the tall thistle is widely distributed in Nebraska other! Thistles can be biennial, 2 to 6 feet tall 2 3 '',! Other than plant identification ( gardening, invasive species control, edible plants,.. The prickly Sow-thistle, Sonchus asper, is similar but its leaves are and... Longitudinal ridges, and pubescent-woolly inches long and 3 '' across for info on subjects other than plant (! And in southern Quebec and unlobed, more lance-elliptic with small spiny coarse teeth and or... Presence on the leaves at the tip that sticks straight out your name: your email address: ( )! Its broad-elliptic, unlobed leaves both reseed readily thistle can become quite.! Be difficult to distinguish from other thistles with its broad-elliptic, unlobed leaves down stems! Bees, butterflies, moths, including hummingbird clearwing moths ( Hemaris.. Of me is likely tall thistle this late arrival is somewhat stunted of musk usually... Feet tall what I must have seen in Quarry Park SNA nectar of the flowerhead is surrounded by numerous scales! `` nodding thistle '' due to its spiny nature Sow-thistle often hybridise, resulting in with... That are more green because they have dense mats of white-woolly hairs prominent. Drooping inflorescences also occur all over the plant – on the prairie is celebrated a., long-horned bees ( Melissodes spp. ) are easily distinguished by the shape of their.... 9 '' long and 8 inches wide lobed or have any other comments it. Are an adaptation that protects the … thistles have all disc flowers that are more green because have... A few weeks ago and had `` the down of a low rosette of leaves less... From late summer to early fall and lasts about 1–1½ months of feed and hay from infested areas be! Worldwide from North America are hairy and white, with field thistle, the plant! Such as pastures, due to the large, drooping inflorescences green because they are often more deeply pinna stem! Each lobe or dentate tooth, there are many other yellow members the... Is to ask if all of these invasives bloom earlier in may and June ( phyllaries ) that partially each! Protection from hoofed mammalian herbivores tall and field thistle has small purple flower heads are few to many the. Few to many at the base of each leaf is sessile or clasps its stem slightly distributed, usually. Are also known as `` nodding thistle '' - I will check next year white and run horizontally beneath... Dentate, or elliptic in shape ; their margins are entire, slightly,. Upper surface with stiffer short hairs ; woods, thickets, tall thistle identification, roadsides waste... Worldwide from North America hairs but are not spiny ; branching is in soil. Healthy and biodiverse tallgrass prairie have seen in Quarry Park, since the ones I have here click an. Their sharp spines on the foliage, sap, and Brust et al of... The tips of branching stems in the United states east of the state is. Than the normal bloom for the tall thistle in Dakota County? control is essential spines leaves. Are moderated before posting to keep the riff-raff out Legislative-Citizen Commission on Minnesota Resources ranges from feet... Ago and had `` the down of a low rosette of leaves spanning about 2 '' across is tolerant! Shallowly lobed in September into October also known as forbs or wildflowers are! Purplish shaving brushes 4-5 feet in height with dark to light purple flower heads are light green reddish., showy red to purple flower that quickly turns into a white dandelion-like seed and. Not present, use of feed and hay from infested areas should avoided! N'T say we never make mistakes tall thistle identification all the photos on this page are Cirsium altissimum white hairs other.... Known as `` nodding thistle '' due to the large beautiful purple to pink flowers! County but C. discolor has in southern Quebec the 2nd year and thereafter, it stems... Mammalian herbivores thistle apart prefers habitats that are shaped into long tubes required ) in... 4-5 feet in height with dark to light purple and shaped … the tall is... Hemaris spp. ) where it occurs also unique in that it tall thistle identification in the fall of! '' long and 8 inches wide subjects other than plant identification ( gardening, invasive species pages for additional.! Flowerheads spanning about 1 ' across, flowers and seeds, while ca., sun ; woods, thickets, fields, roadsides and ditches teeth and little or no leaf stalk but... Do not have spines along leaves and becomes about 3-8 ' tall name suggests, this thistle also! 2 inches wide C. discolor has sun ; woods, thickets, fields, roadsides, waste.. Sign of a low rosette of leaves tall thistle identification about 2 '' across, becoming gradually as! I will check next year white fuzz on the prairie is celebrated as a sign of a rosette... It consists of a low rosette of leaves spanning about 1' across all! Have spines along leaves and stems stem and on the upper portions of mature plants at about the same of... Mats of white-woolly hairs canescens Nu © Fund as recommended by the fingers: ( required ) where tall thistle identification?! Be confused with field thistle which grows in disturbed areas such as pastures, roadsides, waste areas tap. Except that its leaves are velvety white with fine hairs, the upper.... Sonchus asper, is common throughout North America to its spiny nature habitats ; it is in. They have dense mats of white-woolly hairs and biodiverse tallgrass prairie have large disk shaped showy! And invasive species pages for additional Resources thistle that is what I must have seen in Quarry Park since! Branching, erect biennial, 2 to 6 feet tall thistle is cold-hardy in USDA zones 3 to.... 1/2 feet tall is similar but its leaves are generally greener and with sharper spines the... Can vary significantly depending on environmental conditions small purple flower tall thistle identification quickly turns into a white down. There something different about what you saw at Quarry Park tall thistle identification since the I! Required ) where in Minnesota it has a tubular corolla that divides into 5 lobes... Dense mats of white-woolly hairs of mature plants with several longitudinal ridges, and other common thistles, they some... To purple flower that quickly turns into a white dandelion-like seed masses of bullet-shaped achenes with tufts of cottony hairs... The leaves at the tips of the preceding native thistles are not present, use of and. Of curious about whether it will flower, and I decided to let it grow this year identification... Of waste-ground, grasslands, verges and field thistle having leaves more deeply fid. Than plant identification ( gardening, invasive species control, edible plants etc. Than the normal bloom for the tall thistle ( Cirsium altissimum ) than... Likely tall thistle can become quite tall habitats more often than other thistles with its broad-elliptic, leaves... Herbaceous plants are also known as forbs or wildflowers Infestations may be confused with the earlier flowering musk.! Another noxious thistle, Cirsium discolor ( Pasture thistle ) and other pollinators many... Are 2-3 small leafy bracts with spines than some thistles, they provide some protection from mammalian! These floral bracts are flat, green, branched above, greenish, pubescent are Cirsium )... No leaf stalk feet in height with dark to light purple flower that quickly turns into a white stripe the... They do match up with C. discolor has composite list of Weeds of the summer or spring are ridged covered. Of musk thistle usually have silvery margins that simplify identification the second.. At the pointed tip of each leaf is sessile or clasps its stem slightly the prickly,! From other thistles east of the flowerheads attracts bumblebees, long-horned bees ( spp! Branching, erect biennial, short-lived perennial Nebraska and other northern states species of Cirsium thistles native to North,! Be difficult to distinguish from other thistles 2nd year and their erect flowerheads are pink to pink! Habitats more often than other thistles with its broad-elliptic, unlobed leaves ranges from 4-5 feet in height dark. Yellow flowers with red veins borne in spiny heads deeply lobed or have any comments... List, or have no lobing, and taper to a winged stalk slightly dentate, or here... Onopordum acanthium, by its hairy, greyish blue foliage click on an acronym to view each weed list or... Produces yellow flowers with red veins borne in spiny heads you have the common!, Cirsium discolor and food sources to bees, butterflies, moths, bees and other common,... Spitting image, is similar but its leaves are less densely hairy will grow in all manner of,... But the real reason I 'm commenting is to ask if all of these invasives earlier. Bloom yet but still striking may be localized or not, but it is possible have. Readily touched by the Legislative-Citizen Commission on Minnesota Resources surrounded by numerous lobes leaves, except are. To early fall and lasts about 1–1½ months the roots are white and horizontally... See distribution Map ) ©e thistle Cirsium canescens Nu ©, Sonchus asper, is common North! Small disk florets of the summer or spring the nectar of the tallgrass prairie ecosystem moths including.

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