Flora of North America species comparison

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Hulsea heterochroma

red ray hulsea, red-ray alpinegold
Habit Biennials or perennials, 50–150 cm.
Stems

1–3, glandular.
Leaves

mostly cauline;

blades green, broadly oblanceolate to spatulate, 9–21 cm, margins dentate, faces glandular-villous;

distal cauline leaves lanceolate to ovate, gradually reduced.
Involucres

obconic to hemispheric, 11–18 mm diam.
Ray florets

28–75+;

corolla tubes hairy, laminae red to reddish purple (narrowly oblong to linear, ciliate), 7–15 mm.
Disc corollas

yellow (lobes and veins red-tinged).
Phyllaries

10–25 mm, outer narrowly lanceolate, apices attenuate.
Heads

3–5.
Cypselae

6–8 mm;

pappus scales unequal, shorter 1–2 mm, longer 2–3 mm.
2n

= 38.

Hulsea heterochroma
Phenology Flowering late spring–summer.
Habitat Often common after fires, chaparral and woodlands, rocky or gravelly soils from various substrates
Elevation 300–2600 m (1000–8500 ft)
Distribution
from FNA
AZ; CA; NV; UT
[WildflowerSearch map]
[BONAP county map]
Source FNA vol. 21, p. 397.
Parent taxa Asteraceae > tribe Heliantheae > subtribe Chaenactidinae > Hulsea
Sibling taxa
H. algida, H. brevifolia, H. californica, H. mexicana, H. nana, H. vestita
Name authority A. Gray: Proc. Amer. Acad. Arts 7: 359. (1867)
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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