Canada's Plant Hardiness Site

Data Entry

Choose a species from the list below.

Email us if the plant you wish to report is not listed on the site, or to report any nomenclature errors.

family: Asteraceae

Cirsium arvense creeping thistle,Canada thistle,field thistle
Cirsium brevistylum shortstyle thistle,clustered thistle,Indian thistle
Cirsium canescens
Cirsium carolinianum Carolina thistle,soft thistle,smallhead thistle,purple thistle
Cirsium discolor field thistle,pasture thistle
Cirsium drummondii Drummond's thistle,dwarf thistle,shortstem thistle
Cirsium edule edible thistle
Cirsium edule var. macounii Macoun?s thistle,edible thistle
Cirsium flodmanii Flodman's thistle,prairie thistle,woolly thistle
Cirsium foliosum leafy thistle,elk thistle,foliose thistle
Cirsium hookerianum Hooker's thistle,white thistle
Cirsium horridulum horrid thistle,yellow thistle,bristly thistle
Cirsium horridulum var. horridulum horrid thistle,yellow thistle,bristly thistle
Cirsium japonicum Japanese thistle
Cirsium longistylum longstyle thistle
Cirsium muticum swamp thistle,dunce nettle,horsetops
Cirsium palustre marsh thistle,European swamp thistle,marsh plume thistle
Cirsium pitcheri Pitcher's thistle,dune thistle,sand dune thistle
Cirsium pumilum pasture thistle
Cirsium pumilum var. hillii Hill's thistle,hollowroot thistle
Cirsium scariosum meadow thistle,elk thistle
Cirsium scariosum var. scariosum meadow thistle,elk thistle
Cirsium undulatum wavyleaf thistle,grey thistle
Cirsium vinaceum
Cirsium vulgare bull thistle,common thistle,spear thistle,lanceleaf thistle,Fuller's thistle
Cirsium ×vancouveriense Vancouver thistle

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