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Montana Field Guide

Montana Field Guides

Purple Cudweed - Gnaphalium purpureum
Other Names:  Gamochaeta ustulata, Gnaphalium purpureum var. ustulata

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Status Under Review

Global Rank: G5
State Rank: SU

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General Description
Biennial or short-lived perennial. Stems erect, simple, 10–40 cm. Leaves 1–3 cm long; basal petiolate, oblanceolate; cauline linear, sessile. Glomerules terminal in a narrow, spike-like inflorescence, surpassing subtending leaves. Involucres 3–5 mm high; phyllaries white, with acute tips, sometimes tomentose at the base. Inner corollas 2–4 mm long. Achenes ca. 0.5 mm long; pappus deciduous in a ring (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Range Comments
BC, MT, south to CA. Our plants are var. ustulata (Nutt.) Boivin. Collected once in Missoula County (Lesica 2012. Manual of Montana Vascular Plants. BRIT Press. Fort Worth, TX).

Habitat

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Citation for data on this website:
Purple Cudweed — Gnaphalium purpureum.  Montana Field Guide.  .  Retrieved on , from