Triantha occidentalis |
Triantha occidentalis subsp. occidentalis |
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western asphodel, western false-asphodel, western tofieldia |
western false-asphodel |
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Stems | leafless, or with 1–3 leaves towards base, 10–80 cm, variously glandular-hairy or only glandular below inflorescence, glands uniformly 4–6 times longer than wide. |
10–80 cm, glandular below inflorescence with glands dome-shaped to conical, 1/2–2 times longer than wide, or pubescent with cylindrical hairs 2–4 times longer than wide, rarely both glandular and pubescent. |
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Leaf | blades to 50 cm × 8 mm. |
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Inflorescences | forming globose or cylindric-ovoid, spikelike heads, 3–45-flowered, sometimes interrupted or open, 1–8 cm, glandular-pubescent; bracts subtending pedicel in cluster; bracteoles shallowly and symmetrically 3-lobed to cleft from proximal 1/3 to base, lobes rounded to acute, often markedly unequal. |
usually forming globose heads ca. as long as wide, less often spikelike and forming cylindrical-ovoid heads, 3–45-flowered, sometimes interrupted or open, 1–8 cm; bracteoles usually glandular. |
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Flowers | usually borne in clusters of 3, proximal sometimes remote; perianth white or yellowish; tepals 3–7 mm, inner series somewhat longer and narrower; stamens 3–6 mm; ovary ellipsoid, tapering gradually to style base; styles distinct, 0.6–3 mm; pedicel 1–12 mm. |
tepals 3–7 mm; stamens 3.5–6 mm; styles 1.3–3 mm; pedicel 1–12 mm. |
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Capsules | ovoid to broadly ellipsoid, 4–9 mm, clearly longer than tepals and not enclosed by them, chartaceous, easily ruptured. |
4–8 mm. |
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Seeds | reddish brown, ca. 1 mm; appendages 1 or 2 with one at each end, rarely absent; coat white, inflated, reticulate. |
often lobed, 1–2(–3) times longer than wide; appendages occasionally absent, usually 1, to 3 times longer than seed, rarely also with short appendage at opposite end; coat strongly inflated. |
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2n | = 30. |
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Triantha occidentalis |
Triantha occidentalis subsp. occidentalis |
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Phenology | Flowering summer. | |||||||||
Habitat | Moist meadows, marshes | |||||||||
Elevation | 0–3300 m (0–10800 ft) | |||||||||
Distribution |
nw United States; w Canada
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CA; OR |
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Discussion | Subspecies 3 in the flora. The subspecies of Triantha occidentalis recognized here are for the most part readily distinguishable from one another. Only in the area of southwest Oregon where subsp. occidentalis and subsp. brevistyla make contact might it be said that some intergradation occurs, as was previously observed by C. L. Hitchcock (1944). It should also be noted that some specimens of subsp. occidentalis from Del Norte County in northern California and the adjacent Josephine County in Oregon are not entirely typical, being very robust with large, more elongate inflorescences. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 26, p. 63. | FNA vol. 26, p. 64. | ||||||||
Parent taxa | Liliaceae > Triantha | Liliaceae > Triantha > Triantha occidentalis | ||||||||
Sibling taxa | ||||||||||
Subordinate taxa | ||||||||||
Synonyms | Tofieldia occidentalis, Tofieldia glutinosa var. occidentalis | |||||||||
Name authority | (S. Watson) R. R. Gates: J. Linn. Soc., Bot. 44: 137. (1918) | unknown | ||||||||
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