Flora of North America species comparison

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Hulsea nana

dwarf alpinegold, dwarf hulsea, little hulsea
Habit Perennials, 5–15(–20) cm.
Stems

1–7, glandular-puberulent and sparsely lanate.
Leaves

mostly basal;

blades narrowly spatulate, 2–6 cm, margins lobed or toothed (lobes or teeth mostly oblong), faces sparsely lanate to woolly;

distal cauline leaves narrowly lanceolate, much reduced.
Heads

1.
Involucres

obconic, 8–12 mm diam.
Ray florets

12–30;

corolla tubes glabrous, laminae yellow, 6–10 mm.
Disc corollas

yellow.
Phyllaries

8–12 mm, outer narrowly obovate to oblong-lanceolate, apices acuminate to acute.
Cypselae

6–8 mm;

pappus scales subequal, 1–2 mm.
2n

= 38.

Hulsea nana
Phenology Flowering summer.
Habitat Subalpine to alpine rocky slopes, taluses, mostly volcanic substrates
Elevation 2400–3000 m (7900–9800 ft)
Distribution
from FNA
CA; OR; WA
[WildflowerSearch map]
[BONAP county map]
Discussion

Densely lanate or woolly plants of Hulsea nana are referable to var. larsenii. Such plants may occur in distinct populations but can be found together with sparsely lanate and strictly glandular plants. The distribution of lanate to woolly plants appears associated with higher levels of insolation.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 21, p. 398.
Parent taxa Asteraceae > tribe Heliantheae > subtribe Chaenactidinae > Hulsea
Sibling taxa
H. algida, H. brevifolia, H. californica, H. heterochroma, H. mexicana, H. vestita
Synonyms H. nana var. larsenii, H. vulcanica
Name authority A. Gray: in War Department [U.S.], Pacif. Railr. Rep. 6(3): 76, plate 13. (1858)
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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