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377. Hulsea Torrey & A. Gray in War Department [U.S.], Pacif. Railr. Rep. 6(3): 77, plate 13. 1858.
Alpinegold [For Gilbert White Hulse, 1807–1883, physician and plant collector]
Dieter H. Wilken
Annuals or perennials, 5–150 cm. Stems erect, simple or branched (aerial shoots often from subterranean caudices). Leaves basal or basal and cauline, proximally whorled, distally alternate; petiolate (at least basal) or sessile; blades mostly lance-linear, oblanceolate, ovate, or spatulate, margins entire, lobed, or toothed, faces thinly lanate to densely woolly (hairs crisped, tangled, or matted, usually 0.8+ mm) and/or gland-dotted, glandular-puberulent, glandular-villous, or stipitate-glandular. Heads radiate, borne singly or in corymbiform arrays. Involucres obconic to hemispheric, 8–26 mm diam. Phyllaries persistent, 14–35(–60+) in 2–4 series (reflexed in fruit, mostly lance-ovate to lanceolate or linear, herbaceous). Receptacles flat, knobby or pitted, epaleate. Ray florets 9–60+, pistillate, fertile; corollas yellow, orange, or red. Disc florets 20–200+, bisexual, fertile; corollas yellow to orange (glabrous or sparsely hairy), tubes shorter than or about equaling cylindric throats, lobes 5, deltate to lance-ovate. Cypselae clavate to linear, compressed (lenticular in cross section), silky-hairy; pappi of 4 (distinct) quadrate to spatulate, equal, subequal, or unequal, erose to laciniate scales (the alternate alike). x = 19.
Species 7 (7 in the flora): w United States, nw Mexico.
SELECTED REFERENCE Wilken, D. H. 1975. A systematic study of Hulsea (Asteraceae). Brittonia 27: 228–244.
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| 1 |
Basal and proximal cauline leaves gray to grayish green, lanate to woolly (hairs mostly eglandular) |
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(2) |
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Basal and proximal cauline leaves ± green, mostly glandular-puberulent or glandular villous (sometimes sparsely lanate as well, sometimes woolly in H. nana) |
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(3) |
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| 2 (1) |
Leaves basal and cauline, blades broadly oblanceolate to spatulate, 6–10 cm; heads 2–5; cypselae 4–6 mm |
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3 Hulsea californica |
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Leaves mostly basal, blades spatulate, 1–9 cm; heads 1–2; cypselae 5–10 mm |
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7 Hulsea vestita |
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| 3 (1) |
Leaves mostly basal (cauline none or relatively few); heads 1–2 (per basal leaf rosette) |
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(4) |
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Leaves mostly cauline (basal usually present as well); heads 3–5 |
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(5) |
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| 4 (3) |
Plants (10–)20–40 cm; leaf margins sinuate, lobed, or toothed (lobes or teeth mostly triangular); phyllary apices acute to attenuate; ray florets 28–59 |
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1 Hulsea algida |
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Plants 5–15(–20) cm; leaf margins lobed (lobes mostly oblong); phyllary apices acuminate to acute; ray florets 12–30 |
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6 Hulsea nana |
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| 5 (3) |
Ray laminae red to reddish purple (narrowly oblong to linear, ciliate) |
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4 Hulsea heterochroma |
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Ray laminae yellow (narrowly elliptic to narrowly lance-oblong) |
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(6) |
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| 6 (5) |
Ray florets 10–23, corolla tubes hairy |
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2 Hulsea brevifolia |
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Ray florets 20–35, corolla tubes glabrous |
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5 Hulsea mexicana |
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List of lower taxa
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