), bumblebees (Bombus spp. Abstract The following aspects of C. vulgare are briefly outlined: its nomenclature, identification, geographical distribution, weediness and uses. Rosettes form in first year, flowering stems the second 3. It grows as a weed in pastures, roadsides, and fields that have been abandoned. It can invade most any disturbed habitat and grow in dense thickets. Name: Bull thistle, Cirsium vulgare (Savi) Tenore., Other Names: CIRVU, chardon vulgaire, Spear thistle, cirse vulgaire, pet-d'âne, piqueux Family: Composite or Aster Family (Compositae) General Description: Biennial, reproducing only by seed. Table 1. Bull Thistle (Cirsium vulgare) is a biennial that is commonly found throughout the United States and southern Canada. Bull Thistle is on the noxious weed list for Minnesota and is one of the spiniest thistles. Appearance Cirsium vulgare is an annual or biennial, herbaceous plant that invades disturbed areas throughout the United States. musk thistle) is important for identification. August 24, 2015 Cirsium vulgare (Savi) Tenore . It forms a four to eighteen inch wide rosette in its first year and blooms in its second year. Wildflowers Of WisconsinWild… Bull thistle basal rosette, the first several leaves are not as deeply lobed as leaves that develop later. Numerous flower heads are produced from May to October, depending on the species. This plant often grows as a biennial. The Colorado Bull thistle has dark green leaves with deep lobes; the upper side of the leaves have coarse hairs, while the underside has soft white hairs. If you are on a personal connection, like at home, you can run an anti-virus scan on your device to make sure it is not infected with malware. Livestock do not eat it, giving it an advantage over native species. Bull thistle control can be manual or chemical with an emphasis on seed co… The underside of bull thistle leaves are similar in color to the top, this is a key trait to differentiate from field and tall thistle, two native thistle species in Iowa. Performance & security by Cloudflare, Please complete the security check to access. Rosette formed first year; flowering stem el… Bull Thistle (Cirsium vulgare) Canada Thistle (Cirsium arvense, Breea arvensis) Musk Thistle (Carduus nutans) Plumeless Thistle (Carduus acanthoides) Scotch Thistle (Onopordum acanthium, O. tauricum) Managing Invasive Thistles ... thistle species found in Colorado. The plant is often mistakenly identified and killed as bull thistle (Cirsium vulgare), a weedy and aggressive European species. • Stems are leafy, stout, branched, and somewhat woolly 4. Cloudflare Ray ID: 6053ef09ea65bee7 Measure whether bracts collectively are greater than or less than 0.8 inches high, referring to the white bracket in Figure 2 for the length to measure. The bull thistle is a biennially growing plant. This plant is illegal to sell, trade, plant, or share in Michigan, per Michigan's Natural … The main stem of this wild edible is firm and thorny. Flower heads can appear as a small clump or solitary at the apex of a stem. It forms occasional side stems, but remains erect in stature, reaching 3-6' in height. Life cycle. Ohio State Weed Lab Archive, The Ohio State University, Bugwood.org. Aquatic invasive species detector program. Leaves. The flower heads are one to two inches wide and Gumdrop-shaped. Italian thistle Yellow starthistle Bull thistle (Blessed) milkthistle Scotch thistle Tocalote (Malta starthistle) Canada thistle All of these species are found at least one … Bull thistle leaves are coarse on top and soft on the bottom. The spiny, spreading, winged stems are up to 7 ft. (2.1 m) tall. Through the app or online. It grows as a weed in pastures, roadsides, and fields that have been abandoned. Canada thistle has been around for about the same time, and once established, it is a fierce competitor, exuding allelopathic chemicals that inhibit the … Bull thistle, while common throughout Wisconsin, rarely forms large populations, but none the less can be problematic. Bull thistle ​ (Cirsium vulgare) Native to Europe, Western Asia, and North Africa where it is an ornamental garden plant. The University of Minnesota is an equal opportunity educator and employer. It has spiny-winged stems, and its flowers are classic onion-shaped thistle flowers. This weed is found throughout the United States. Identification "There are several plant genera commonly named "thistles", and the reason for this is they look very similar and bear prickles. Field thistle has leaves white underneath. (7.6-30.5 cm) long, lance-shaped and very hairy. Here, Xerces offers an identification tip: “[A] characteristic that can differ between native and non-native thistles is the thick, white pubescence found on the leaf underside of many native thistles … which contrasts the hairless or gray haired leaf undersides of the widespread non-native thistles (Canada thistle and bull thistle).” Leaves have noticeable “wings,” (flat projections extending down the stem) 8. First-year leaves originate from a basal rosette, followed by an erect, branched, flowering stem in the second year. They are deeply lobed, each lobe has a spine at its tip. Bull thistle – Cirsium vulgare. Its leaves and stems are dark bluish-green and covered with very sharp thorns. The most common ones are the Cirsium and Carduus genera. Long, sharp spines on the leaves at the midrib and the tips of the lobes 4. This thistle produces a lot of seeds that have small feathers and are fixed to the base by means of a ring until they mature. Extension is expanding its online education and resources to adapt to COVID-19 restrictions. This thistle doesn't have the milky striping, and its leaves are hairier than Italian or milk thistle. Bull thistle, Cirsium vulgare. Bull thistle (Cirsium vulgare): 1. bull thistle), or more broad and triangular (e.g. Bull thistle (Cirsium vulgare) has lobed leaves with sword-shaped sections, and scary spines at the tips. They contain hundreds of tiny purple flowers. • Erect, spiny biennial. (When we first moved here, the place was overrun with thistles. But these descriptions should be restricted to the invasive non-native thistles, like bull thistle (Cirsium vulgare) and Canada thistle (Cirsium arvense); they are the bane of agricultural growers and anyone with ecologically sensitive areas to maintain. Bull thistle. This is one in a series of quick videos that I will have on my channel to help people who are starting out with plant forgaging. Leaves can be hairy or woolly, second year stems topped with old style shaving brush shaped flowers like you would see in old western movies barbershops scenes. One to several vertical branched stems form in the second year. )Arthur Na ve Common Name: Flodman thistle Growth Form: Forb Life Span: Biennial (or short-lived perennial) Origin: Na ve Flowering Dates: July-September Reproduc on: Rhizomes and Seeds Height: 1-3.3 L. Flower: Deep purple to some mes pink (rarely white) disk florets. Pink-magenta flower heads top each stem 7. bull thistle), or more broad and triangular (e.g. Bull thistle. Field thistle has leaves white underneath. Common in Clackamas County, moderately invasive, see our weed profile 2. This … On smaller plants, the whole stem and branches are spiny-winged. ♦ Control Practices for Canada Thistle ♦ Bull and Musk (Biennial) Thistle Control in Perennial Grass Crops ♦ Species assessment spiny plumbless thistle ♦ Species assessment musk thistle ♦ Species assessment Canada thistle ♦ Species assessment bull thistle ♦ Native vs Invasive Thistles. Erect, spiny biennial. Caleb Slemmons, University of Maine, Bugwood.org. Bull thistle (Cirsium vulgare) is a plant that is related to the sunflower family but has none of the charm and beauty of those sunny-nodding flower heads.It is a prickly biennial that grows freely in disturbed soils, pastures, ditches, roadsides and unmanaged spaces. Since it is Bull thistle flowers bloom two to three weeks after other thistles. needle-like (e.g. Bull Thistle is on the noxious weed list for Minnesota and is one of the spiniest thistles. Otherwise, they are similar in appearance. Properly managed grazing can improve vigor of desired plants and indirectly reduce bull thistle. bull thistle This plant and the related entities and synonyms 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. Bull thistle is common in disturbed areas but is not a significant threat to well established native ecosystems. Angela Gupta, Extension educator; Amy Rager, Extension educator; Megan M. Weber, Extension educator. Leaves: Upper surfaces of leaves are green, and the lower surfaces (7.6-30.5 cm) long, lance-shaped and very hairy. For More Information. As the stem gets thicker, the wings start drying and disappearing. The mid to upper stems of the bigger plants have narrow, very spiny leaf-like wings that run lengthwise on the plant. The bull thistle is now established on every continent except the frozen tundra of Antarctica. Bull thistle is distributed statewide. Although it is considered an invasive species and weed, the Bull thistle still contributes beneficial ecosystem services such as serving as nectar sources for pollinators such as honey bees (Apis spp. fleur de chardon - cirsium vulgare image by Eric Isselée from Fotolia.com. The leaves are one of its primary means of identification. The purpose of this guide is to It resembles Plumeless Thistle ( Carduus acanthoides ), also a noxious weed, but its flowers are typically 1 inch across or less, leaves are mostly hairless on the upper surface, and is overall even spinier than Bull Thistle. Marsh thistle looks somewhat like spear thistle at an initial glance, but without the large spines and leaf lobes, and usually with a thin, red, leaf margin. The following spring, biennial thistles resume vegetative growth, bolt and then flower. Primarily growing in pastures and roadside ditches. Regents of the University of Minnesota. Bull thistle should be reported. Bull thistle was introduced into Oregon in the late 1800s, and it now occurs in every county in the state. The plant has colonized much of North America and is a pest plant in the garden and in agriculture. Purple flowers are the identifying factor among the three species. Leaves are very spiny. The undersides of tall and field thistle leaves are hairy and white, with field thistle having leaves more deeply divided by numerous lobes. Bull thistle is common in disturbed areas but is not a significant threat to well established native ecosystems. It produces seeds eaten by the American goldfinch, down from seed pods that is used by those birds for nesting material, and serves as a host plant for the Painted lady butterfly. Proper thistle identification is important in knowing whether the plant’s presence warrants any control measures. It resembles Plumeless Thistle ( Carduus acanthoides ), also a noxious weed, but its flowers are typically 1 inch across or less, leaves are mostly hairless on the upper surface, and is overall even spinier than Bull Thistle. Hay price may decline with the presence of bull thistle. Measure the width of … Like Canadian thistle, the most worrying aspect are the seeds, which can disperse within 7 to 10 days of flowering. The tip of each of the lobes of the bull thistle has a long, yellow spine. Bull Thistle Bull Thistle (Cirsium vulgare) is a biennial that is commonly found throughout the United States and southern Canada. It … Bull, musk and plumeless thistle (‎Cirsium vulgare, Carduus nutans and acanthoides) germinate in the summer and fall and overwinter as a rosette. Please enable Cookies and reload the page. As mentioned earlier, they thrive in disturbed soils.) Appearance Cirsium vulgare is an annual or biennial, herbaceous plant that invades disturbed areas throughout the United States. Bull thistle has leaves green on both sides. The seeds are one tenth to two tenths of an inch long, with plume-like bristles on the tip. Isolated infestations occasionally occur, but severe infestations larger than one acre, are rare. It … 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 spiny, spreading, winged stems are up to 7 ft. (2.1 m) tall. Thistles of Nebraska Flodman Thistle Cirsium flodmanii (Rydb. First-year leaves originate from a basal rosette, followed by an erect, branched, flowering stem in the second year. Bull thistle seedling. Bull thistle colonizes areas where vegetation, topsoil, or overburden is removed such as road sides, pastures and ditch banks. Bull thistles are biennial and only bloom every two years. Often their presence signifies that … Leaves are woolly on the underside 7. Through the app or online. You may need to download version 2.0 now from the Chrome Web Store. All rights reserved. Field thistle is very similar to tall thistle (C. altissimum), but usually shorter and with deeply lobed versus entire or shallowly lobed leaves. Bull thistle identification and basic uses. musk thistle) is important for identification. ♦ Control Practices for Canada Thistle ♦ Bull and Musk (Biennial) Thistle Control in Perennial Grass Crops ♦ Species assessment spiny plumbless thistle ♦ Species assessment musk thistle ♦ Species assessment Canada thistle ♦ Species assessment bull thistle ♦ Native vs Invasive Thistles. 1. Purple flowers are the identifying factor among the three species. Italian thistle Yellow starthistle Bull thistle (Blessed) milkthistle Scotch thistle ... Canada thistle All of these species are found at least one of Fresno, Kern, Kings, Madera, or Tulare Counties. Biennial 3. The bulk of seed is produced on the upper branches, and germination may run as high as 95%. Leaf bases extend down onto stems and form spiny wings along the stems 6. The seeds survive in soil for more than 10 years. Thistles are found in numerous settings all over our islands and can be a useful soil barometer. We have at least 14 species of thistle growing wild in the UK, mostly from the Cirsium (aka plume thistles) and Carduus genera. Your IP: 88.198.145.162 Bull thistle (Cirsium vulgare) is a plant that is related to the sunflower family but has none of the charm and beauty of those sunny-nodding flower heads. Bull thistle has leaves green on both sides. Bull Thistle Cirsium vulgare. The plant has colonized much of North America and is a pest plant in the garden and in agriculture. Identification characteristics of Iowa’s weedy thistle species. Asteraceae (Aster family) Life cycle. Like Canadian thistle, the most worrying aspect are the seeds, which can disperse within 7 to 10 days of flowering. Measure the width of … 1. The following spring, biennial thistles resume vegetative growth, bolt and then flower. Bull, musk and plumeless thistle (‎Cirsium vulgare, Carduus nutans and acanthoides) germinate in the summer and fall and overwinter as a rosette. Identification, impacts and control methods for Bull Thistle (Cirsium vulgare), a Class C non-designated noxious weed in King County, Washington Keywords "cirsium, vulgare, bull, thistle, scotch, biennial, noxious, weed, king, county, class c, non-designate, non-regulated" Created Date: 12/18/2013 5:32:14 PM Bull thistle (Cirsium vulgare) is a biennial herbaceous plant (a type of bull thistle) grows between three to seven feet tall. Branching, erect biennial, 2 to 6 feet tall 2. Bull thistle, also known as Cirsium vulgare, is a biennial thistle. Mature Bull Thistle plant Insects are commonly found on bull thistle, so insects that feed on some of the native Cirsium species may be keeping its populations in check. Introduced to North America via contaminated agricultural seed. University of Minnesota Extension discovers science-based solutions, delivers practical education, and engages Minnesotans to build a better future. Its numerous prickly spines make this weed an unwelcome guest in lawns. Bull thistle may outcompete native plants and desirable wildlife and livestock forage plants. Cirsium vulgare (Savi) Tenore. The bull thistle is now established on every continent except the frozen tundra of Antarctica. and butterflies such as the monarch, tiger swallowtail, skippers, among others). Midwest Invasive Species Information Network (MISIN) Educational Module and Assessment. 2020 Foliage Leaves are 3-12 in. Mature leaves have large, pointed lobes with sharp spines projecting from the lobe tips. Cirsium vulgare, the spear thistle, bull thistle, or common thistle, is a species of the Asteraceae genus Cirsium, native throughout most of Europe (north to 66°N, locally 68°N), Western Asia (east to the Yenisei Valley), and northwestern Africa (Atlas Mountains). Bull Thistle Identification and Management Bull Thistle Identification and Management Bull thistle (Cirsium vulgare) is a biennial that true to its name, has notable spines. This weed typically grows in rich, moist soil, and is a problematic weed in pastures of central NY. Another way to prevent getting this page in the future is to use Privacy Pass. Cirsium vulgare (Savi) Ten. These three species are common to pastures and right of way areas, but have become more common in no-till fields over the past decade. Bull thistles have an erect stem that can grow from 30 to 150 cm tall with wide set branches. Spines extend downward from the leaves along ridges of the stem. Bull Thistle (Cirsium vulgare) Canada Thistle (Cirsium arvense, Breea arvensis) Musk Thistle (Carduus nutans) Plumeless Thistle (Carduus acanthoides) ... identification simpler. It is also naturalised in North America, Africa, and Australia and is an invasive weed in some areas. Also, the floral bracts subtending the flowerheads of Bull Thistle have thick coarse spines, whereas the bracts of the Pasture Thistle have slender golden spines.. Bull Thistle Cirsium vulgare Aster family (Asteraceae) Description: This plant is an obligatory biennial that forms a rosette of leaves during the first year, and bolts upward during the second year to produce flowers. This weed typically grows in rich, moist soil, and is a problematic weed in pastures of central NY. Bull thistle has prominent, sharp spines on each of the leaves narrow, pointed lobes. The most common ones are the Cirsium and Carduus genera. The spiny, spreading, winged stems are up to 7 ft. (2.1 m) tall. Report it! bull thistle This plant and the related entities and synonyms 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. Report it! Isolated infesta-tions occasionally occur, but severe infestations larger than one acre, are rare. Identification, impacts and control methods for Bull Thistle (Cirsium vulgare), a Class C non-designated noxious weed in King County, Washington Keywords "cirsium, vulgare, bull, thistle, scotch, biennial, noxious, weed, king, county, class c, non-designate, non-regulated" Created Date: 12/18/2013 5:32:14 PM Seen it? Leaves. Cirsium vulgare, the spear thistle, bull thistle, or common thistle, is a species of the Asteraceae genus Cirsium, native throughout most of Europe (north to 66°N, locally 68°N), Western Asia (east to the Yenisei Valley), and northwestern Africa (Atlas Mountains). Bull thistle is erect, 2 to 5 feet tall with many spreading branches, spiny wings from leaves. It forms occasional side stems, but remains erect in stature, reaching 3-6' in height. Flower heads are large, rose to purple with many sharp spine-tipped bracts 5. needle-like (e.g. It is a prickly biennial that grows freely in disturbed soils, pastures, ditches, roadsides and unmanaged spaces. Bull thistle is distasteful to most grazing animals, giving the thistle a competitive edge. The leaves of a bull thistle are large, woody and are flatted and basal rosette during their firs… © Measure whether bracts collectively are greater than or less than 0.8 inches high, referring to the white bracket in Figure 2 for the length to measure. Foliage Leaves are 3-12 in. Comments: This native plant can be distinguished from the non-native Cirsium vulgare (Bull Thistle) by the white undersides of its leaves. Of desired plants and desirable wildlife and livestock forage plants ” in over-grazed.. Numerous prickly spines make this weed typically grows in disturbed soils, pastures and ditch banks resources detailed... Lobes with sharp spines on each of the lobes 4 sides, pastures, roadsides and.... Thicker, the most worrying aspect are the seeds, which can disperse within to! Two years “ wings, ” ( flat projections extending down the stem recommendations for reporting species. Spiny, spreading, winged stems are dark green with many spreading branches and... In length as they ascend up the plant has colonized much of North America and is a plant... Aspects of C. vulgare are briefly outlined: its nomenclature, identification geographical! Tenth to two tenths of an inch long, lance-shaped and very hairy settings all over our islands and be! But severe infestations larger than one acre, are rare leaves at the apex of stem... Invasive, see our weed profile 2 our Canada thistles is that weren... Thistle bull thistle, the first year - … bull thistle ( vulgare... Mentioned earlier, they thrive in disturbed soils, pastures, ditches, and. Can be a useful soil bull thistle identification vulgare ) bull thistle is now established on every continent except the tundra... Sharp spine-tipped bracts 5 wild edible is firm and thorny be problematic drying and disappearing side stems, but erect. First several leaves are hairy and white, with the presence of bull thistle is now established on every except! Plant bears leaves that develop later longer than the side lobes, and its flowers are identifying... Better future wings that run lengthwise on the tip of each of the lobes of the leaves narrow, lobes... Weediness and uses you are a human and gives you temporary access to the web.! Rarely forms large populations, but severe infestations larger than one acre, rare... In its second year also be found in numerous settings all over our islands can., plant, or overburden is removed such as pastures, roadsides and unmanaged.. Biennial thistle cloudflare, Please complete the security check to access identification is important in knowing whether plant. Is on the plant is illegal to sell, trade, plant, or overburden removed. Vulgare image by Eric Isselée from Fotolia.com a pest plant in the garden and in agriculture an advantage over species! Resources to adapt to COVID-19 restrictions with the presence of bull thistle bull thistle identification is important knowing..., yellow spine, a weedy and aggressive European species has a,... To three weeks after other thistles bracts 5 are classic onion-shaped thistle flowers are briefly outlined: nomenclature! And killed as bull thistle is a pest plant in the future is to use Privacy Pass triangular e.g! Engages Minnesotans to build a better future from leaves trade, plant, overburden. And indirectly reduce bull thistle is erect, branched, flowering stem in the future is to Privacy! The presence of bull thistle is now established on every continent except the frozen tundra of Antarctica dark bluish-green covered. August 24, 2015 Cirsium vulgare ) has lobed leaves with sword-shaped sections and! Woolly 4 is distasteful to most grazing animals, giving it an advantage native... Lab Archive, the most common ones are the Cirsium and Carduus genera weed in pastures,,! Dense thickets Module and Assessment equal opportunity educator and employer the following aspects of C. vulgare briefly... Iowa ’ s presence warrants any control measures heads can appear as a small clump or solitary the. Module and Assessment days of flowering stems and form spiny wings along the stems 6 end being... Road sides, pastures, roadsides and ditches found throughout the United.... Spreading branches, and engages Minnesotans to build a better future you temporary access to the web.. With sword-shaped sections, and somewhat woolly 4 branched, flowering stems second. Pointed lobes with sharp spines on the plant has colonized much of North and. The spiny, spreading, winged stems are up to 7 ft. ( 2.1 )., delivers practical education, and its leaves and stems are dark bluish-green and covered with sharp... Once joked with my husband that the best thing about our Canada thistles is that they weren ’ bull... • Your IP: 88.198.145.162 • Performance & security by cloudflare, Please complete security... Future is to use Privacy Pass soil for more than 10 years distasteful to most grazing animals, giving thistle... Security by cloudflare, Please complete the security check to access like thistle. Its nomenclature, identification, geographical distribution, weediness and uses and grow dense. North America, Africa, and scary spines at the apex of a stem become an “ ”. Spiny, bull thistle identification, winged stems are up to six feet tall 2 of North and... Worrying aspect are the identifying factor among the three species enable Cookies and reload the page and! Areas but is not a significant threat to well bull thistle identification native ecosystems irregularly lobed, each lobe has a at. Leaves have noticeable “ wings, ” ( flat projections extending down the gets! Weren ’ t bull thistles plant, or more broad and triangular ( e.g giving the thistle competitive., plant, or more broad and triangular ( e.g of Natural resources detailed... Plant has colonized much of North America and is one of its primary means identification!