Flora of North America species comparison

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Gamochaeta stachydifolia
Habit Annuals, 4–15 cm; taprooted.
Stems

erect, densely and loosely gray-white tomentose-arachnose.
Leaves

basal and cauline, basal mostly withering before flowering, blades oblanceolate, 1–3 cm × 2–6 mm (usually folded along midveins, bases subclasping, not auriculate; nearly unreduced among proximal heads, none longer than glomerules), faces concolor, tomentose-arachnose.
Involucres

campanulate, 3.5–4 mm, bases sparsely tomentose.
Florets

bisexual 2–4; all corollas yellowish.
Phyllaries

in 4–5 series, outer narrowly ovate-triangular, lengths ca. 1/3 inner, apices acute to acute-acuminate, inner oblong, laminae tan to brownish (not purple), apices (brownish) rounded-apiculate.
Heads

in continuous cylindric arrays 2–3(–4) cm × 10–12 mm (pressed).
Cypselae

not seen.

Gamochaeta stachydifolia
Phenology Flowering Mar–May.
Habitat Hillsides, riparian woodlands, disturbed sites, sandy soils
Elevation 30–500 m (100–1600 ft)
Distribution
from FNA
CA; South America [Introduced in North America]
[BONAP county map]
Source FNA vol. 19, p. 437.
Parent taxa Asteraceae > tribe Gnaphalieae > Gamochaeta
Sibling taxa
G. antillana, G. argyrinea, G. calviceps, G. chionesthes, G. coarctata, G. pensylvanica, G. purpurea, G. simplicicaulis, G. sphacelata, G. stagnalis, G. ustulata
Synonyms Gnaphalium stachydifolium, Gnaphalium purpureum var. stachydifolium
Name authority (Lamarck) Cabrera: Bol. Soc. Argent. Bot. 9: 382. (1961)
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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