Flora of North America species comparison

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Gnaphalium palustre

lowland cudweed, western marsh cudweed
Habit Annuals, (1–)3–15(–30) cm; taprooted or fibrous-rooted.
Stems

commonly with decumbent branches produced from bases, densely or loosely and persistently woolly-tomentose.
Leaf

blades spatulate to oblanceolate-oblong, 1–3.5 cm × 3–8(–10) mm.
Bracts

subtending heads oblanceolate to obovate, 4–12 × 1.5–4 mm, shorter than or surpassing glomerules.
Involucres

2.5–4 mm.
Phyllaries

brownish, bases woolly, the inner narrowly oblong with white (opaque), blunt apices.
Heads

in capitate glomerules (at stem tips and in distalmost axils).
2n

= 14.

Gnaphalium palustre
Phenology Flowering May–Oct.
Habitat Arroyos, sandy streambeds, pond edges, potholes, other moist, open sites
Elevation 100–2900 m (300–9500 ft)
Distribution
from FNA
AZ; CA; CO; ID; MT; ND; NE; NM; NV; OR; SD; UT; WA; WY; AB; BC; SK; Mexico
[WildflowerSearch map]
[BONAP county map]
Source FNA vol. 19, p. 429.
Parent taxa Asteraceae > tribe Gnaphalieae > Gnaphalium
Sibling taxa
G. exilifolium, G. uliginosum
Synonyms Filaginella palustris, G. palustre var. nanum, G. heteroides
Name authority Nuttall: Trans. Amer. Philos. Soc., n. s. 7: 403. (1841)
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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