Flora of North America species comparison

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Helminthotheca echioides

bristly ox-tongue
Leaf

blades 50–150(–250) × 10–50(–80+) mm.
Peduncles

1–5+ cm, bristly hispid.
Phyllaries

often sigmoid in fruit, abaxial faces and tips bristly.
Calyculi

bracts 9–15+ × 3–5+ mm, margins and tips bristly-ciliate.
Cypselae

bodies 2.5–3 mm, beaks 2.5–5 mm;

pappi 4–7 mm.
2n

= 10.

Helminthotheca echioides
Phenology Flowering May–Nov.
Habitat Disturbed sites
Elevation 0–50(–500) m (0–200(–1600) ft)
Distribution
from FNA
AZ; CA; CT; DC; IA; MA; MD; ME; MO; MT; ND; NJ; NY; OH; OR; PA; VA; VT; AB; NB; ON; SK; Europe [Introduced in North America; widely introduced elsewhere]
[WildflowerSearch map]
[BONAP county map]
Discussion

Reports for British Columbia and Nova Scotia need confirmation.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 19, p. 300.
Parent taxa Asteraceae > tribe Cichorieae > Helminthotheca
Synonyms Picris echioides
Name authority (Linnaeus) Holub: Folia Geobot. Phytotax. 8: 176. (1973)
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 Fabaceae, Apiaceae, Boraginaceae, and Polemoniaceae.)

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