Cirsium Genus
Cirsium purpuratum
Cirsium pendulum
Cirsium pectinellum
Cirsium oligophyllum
Cirsium nipponicum
Cirsium maritimum
Cirsium maackii
Cirsium lineare
Cirsium tuberosum Tuberous Thistle
Cirsium dipsacolepis
Cirsium chinense
Cirsium buergeri
Cirsium brevicaule
Cirsium acaulon
Cirsium virginianum Virginia Thistle
Cirsium foliosum Drummond's Thistle
Cirsium amplexifolium
Cirsium serrulatum Cirsium Serrulatum
Cirsium serratuloides Cirsium Serratuloides
Cirsium rivulare Cirsium Rivulare
Cirsium obvallatum Cirsium Obvallatum
Cirsium engelmannii Engelmann's Thistle
Cirsium ehrenbergii Cirsium Ehrenbergii
Cirsium decussatum Cirsium Decussatum
Cirsium arisanense Cirsium Arisanense
Cirsium ochrocentrum Yellow Spine Thistle
Cirsium erisithales Yellow Thistle
Cirsium eriophorum Woolly Thistle
Cirsium hookerianum White Thistle
Cirsium texanum Texas Thistle
Cirsium spinosissimum Spiniest Thistle
Cirsium vulgare Scotch Thistle
Cirsium altissimum Roadside Thistle
Cirsium canum Queen Anne's Thistle
Cirsium pitcheri Pitcher's Thistle
Cirsium pumilum Pasture Thistle
Cirsium nuttalii Nuttall's Thistle
Cirsium neomexicanum New Mexico Thistle
Cirsium mohavense Mojave Thistle
Cirsium heterophyllum Melancholy Thistle
Cirsium scariosum Meadow Thistle
Cirsium palustre Marsh Thistle
Cirsium kamtschaticum Kamchatka Thistle
Cirsium brevistylum Indian Thistle
Cirsium undulatum Pasture Thistle
Cirsium andrewsii Franciscan Thistle
Cirsium fontinale Fountain Thistle
Cirsium flodmanii Flodman's Thistle
Cirsium discolor Field Thistle
Cirsium edule Edible Thistle
Cirsium eatonii Eaton's Thistle
Cirsium esculentum Dwarf Thistle
Cirsium acaule Dwarf Thistle
Cirsium muticum Dunce Nettle
Cirsium occidentale Cobweb Thistle
Cirsium japonicum Tiger Thistle
Cirsium arvense Field Thistle
Cirsium oleraceum Cabbage Thistle
Cirsium horridulum Bristly Thistle
Cirsium arizonicum Arizona Thistle
Cirsium andersonii Anderson's Thistle
Cirsium quercetorum Alameda County Thistle
