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Montana Field Guide

Montana Field Guides

Hairy Bugseed - Corispermum villosum
Other Names:  Corispermum orientale [misapplied]


Global Rank: G4?
State Rank: SNR

Agency Status
USFWS:
USFS:
BLM:
MNPS Threat Rank:
C-value:

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General Description
Annual herbs; foliage sparsely stellate-hairy or becoming glabrous. Stems erect, branched, 10–40 cm. Leaves linear, 1–3 cm long. Inflorescence with bracts narrowly ovate, 5–15 mm long, as wide or wider than the fruit. Fruit ovate, 2–3 mm long, not wing-margined (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX; Mosyakin 2003 in Fl. N. Amer. Vol. 4).

Diagnostic Characteristics
Annual herbs; foliage sparsely stellate-hairy or becoming glabrous. The wings of the fruit lack margins, or if present, are 0.3 mm or less wide. In contrast, the wings on the fruits of Corispermum americanum are prominent (Mosyakin 2003 in Fl. N. Amer. Vol. 4).

Range Comments
In MT in Gallatin, Judith Basin, and Hill counties; AB to QC south to OR, CO, MO (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

References
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Citation for data on this website:
Hairy Bugseed — Corispermum villosum.  Montana Field Guide.  .  Retrieved on , from