20 results More search options

Family	Scientific Name	Common Name	Habitat	Distribution	Image
Asteraceae	Cirsium altissimum	Tall Thistle	Pastures, woodlands, thickets.	MA west to ND, south to Panhandle FL (Jackson County) and e. TX.
Asteraceae	Cirsium arvense	Canada Thistle, Field Thistle	Pastures, disturbed areas.	Native of Eurasia.
Asteraceae	Cirsium carolinianum	Carolina Thistle, Spring Thistle, Prairie Thistle	Prairies and open woodlands, primarily over mafic, ultramafic, or calcareous rocks.	N. VA west to s. OH and MO, south to w. SC, n. GA, AL, and TX. In the eastern part of the Southeast, C. carolinianum seems to be restricted to prairies and woodlands (or maintained powerline or road rights-of-way) over circumneutral rocks and soils, in situations which were oak savannas or even prairies prior to fire suppression.
Asteraceae	Cirsium discolor	Field Thistle	Pastures, woodlands, thickets.	QC west to MB, south to NC, MS, LA, and KS.
Asteraceae	Cirsium engelmannii	Engelmann's Thistle	Prairies, oak savannas.	Sw. AR and s. OK south to nw. LA and e. and c. TX.
Asteraceae	Cirsium hillii	Hill's Thistle	Dry prairies, glades and barrens over calcareous substrates.	ON, MI, WI, and MN south to wc. IN, c. IL, and ne. MO.
Asteraceae	Cirsium horridulum var. horridulum	Common Yellow Thistle, Bull Thistle	Roadsides, woodlands, pine savannas.	ME south to FL, west to TX, mostly on the Coastal Plain and adjacent provinces; also Mexico and Bahamas.
Asteraceae	Cirsium horridulum var. megacanthum	Bigspine Thistle	Moist ground.	AL and Panhandle FL west to TX and OK.
Asteraceae	Cirsium horridulum var. vittatum	Southern Yellow Thistle, Pineland Thistle	Wet pine savannas.	Se. NC south to s. peninsular FL and Panhandle FL, west to s. MS and e. LA; Bahamas; West Indies.
Asteraceae	Cirsium lecontei	LeConte's Thistle	Wet loamy pine savannas, seepage bogs.	E. NC south to Panhandle FL, west to LA.
Asteraceae	Cirsium muticum	Swamp Thistle	Swamps, wet thickets, woodlands, seepage slopes, wet prairies, meadows.	NL (Newfoundland) west to SK, south to DE, NC, TN, and MO, and less commonly south to FL, AL (Diamond & Woods 2009), and TX.
Asteraceae	Cirsium nuttallii	Nuttall's Thistle, Coastal Tall Thistle	Longleaf pine savannas, roadsides, pastures, wet hammocks, dry hammocks, prairies.	Se. VA south to s. FL, west to LA and AR. Reported for the first time from NC by Krings, Westbrooks, & Lloyd (2002).
Asteraceae	Cirsium ochrocentrum	Yellow-spine Thistle	Dry, gravelly or sandy soils of prairies, pastures, open disturbed areas.	SD, WY, NV, and OR south to ec. TX, w. TX, NM, AZ, and n. Mexico (BCN, CHH, COA, DGO, SON, ZAC).
Asteraceae	Cirsium palustre	Marsh Thistle	Damp forests and fields.	Native of Eurasia.
Asteraceae	Cirsium pumilum	Pasture Thistle	Pastures, thickets, and woodlands, perhaps especially over mafic rocks.	S. ME west to w. NY, south to DE, and w. NC.
Asteraceae	Cirsium repandum	Sandhill Thistle	Longleaf pine sandhills, other dry sandy habitats.	Se. VA south to e. GA, nearly endemic to the Carolinas. Similar in distribution to Vaccinium crassifolium, Carphephorus bellidifolius, and Baptisia cinerea, which are all locally abundant endemic indicators of Carolina pinelands.
Asteraceae	Cirsium texanum	Texas Thistle	Woodlands, pine savannas, pastures, fields, roadsides.	OK and NM south through TX to Mexico (CHH, COA, DGO, NLE, SLP, TAM).
Asteraceae	Cirsium undulatum	Wavy-leaf Thistle	Dry prairies, pastures, disturbed areas.	MB west to BC, south to sc. TX, NM, AZ, CA, and Mexico (CHH, COA, DGO, NLE, SON).
Asteraceae	Cirsium virginianum	Virginia Thistle	Moist to fairly dry pine savannas, bogs.	S. NJ south to ne. FL, on the Coastal Plain.
Asteraceae	Cirsium vulgare	Bull Thistle	Meadows, pastures, and disturbed areas.	Native of Europe.