Pyrrocoma liatriformis
Palouse goldenweed, smallhead goldenweed
1–3, erect, sometimes curved-ascending, sparsely villous to tomentose, eglandular.
basal blades lanceolate to oblanceolate, 80–310 × 9–30 mm, margins entire or undulate, ciliate;
cauline sessile, blades lanceolate, 30–120 × 5–20 mm;
faces sparsely tomentose, eglandular.
0–3 cm.
campanulate, 10–23 × 12–20 mm (in axils of leafy bract).
17–25;
corollas 6–14.5 mm.
35–60;
corollas 7–11 mm.
in 4–5 series, green, lanceolate, 5–12 mm, unequal, margins entire, ciliate, apices acute, faces villous.
4–12 in open, racemiform arrays.
narrowly oblong, 4.5–6.5 mm, 4-angled, faces striate, villous;
pappi tawny, 5.8–8 mm.
= 36.
Pyrrocoma liatriformis
Of conservation concern.
Pyrrocoma liatriformis is one of the dominants of virgin Palouse prairies and appears to be threatened. It is recognized by its hirsute stems, leaves, and phyllaries, and the small, pedunculate heads.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
WA
Flora NW
PNW Herbaria
WildflowerSearch
iNaturalist
USDA Plants Database
