Flora of North America species comparison

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Cirsium pumilum var. pumilum
Photo is of parent taxon
Habit Plants mostly 30–100 cm; branches 3–5+, long.
Roots

usually slender, not or rarely slightly tuberous-thickened.
Leaves

usually lobed nearly to midveins, sinuses deep, U-shaped, main spines ± stout, 3–7 mm.
Corollas

usually 40–45 mm.
Phyllaries

outer 3–5 mm wide at base, spines stout, 3–6 mm.
Heads

5.5–6 cm.
Cypselae

usually 3.5–4 mm.
2n

= 30.

Cirsium pumilum var. pumilum
Phenology Flowering summer (Jun–Sep).
Habitat Fields, pastures, open woods, roadsides
Elevation 0–600 m (0–2000 ft)
Distribution
from FNA
CT; DE; MA; MD; ME; NC; NH; NJ; NY; OH; PA; RI; SC; VA; VT; WV
Discussion

Variety pumilum grows on the Atlantic coastal plain from Maine to South Carolina and ranges inland to Pennsylvania and Ohio. It is known to hybridize with Cirsium horridulum var. horridulum (R. J. Moore and C. Frankton 1966).

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 19, p. 116.
Parent taxa Asteraceae > tribe Cardueae > Cirsium > Cirsium pumilum
Sibling taxa
C. pumilum var. hillii
Synonyms C. odoratum
Name authority unknown
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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(If the plant you're looking for doesn't show up in the auto-complete list, that means it either isn't described in Flora of North America yet, or it's listed under a synonym. And please note that Flora of North America is still missing several plant families, including Apiaceae, Boraginaceae, and Polemoniaceae.)

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