Calochortus lyallii |
Calochortus excavatus |
|
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Lyall's mariposa-lily |
Inyo County star-tulip |
|
Stems | not branching or with branch in axil of cauline leaf, straight, 1–5 dm. |
slender, not branching, 1–3 dm. |
Leaves | basal solitary, persistent, 1–3 dm × 2–20 mm, usually not exceeding inflorescence; blade tapering toward both ends. |
basal usually persistent, 1–2 dm; blade linear. |
Inflorescences | subumbellate, 1–9-flowered; bracts 2–several, lanceolate to linear, attenuate, unequal, 1–5 cm; peduncle slender, becoming stiffly erect in fruit. |
subumbellate, 1–4-flowered; bracts paired, 3–8 cm. |
Flowers | erect or spreading; perianth open, campanulate; sepals white or purplish-tinged, usually with purple crescent, lanceolate, usually equaling petals, often adaxially papillose, apex acuminate to attenuate; petals white or purplish-tinged, usually with median, red-purple, adaxial crescent distal to gland, ovate to lanceolate, abruptly contracted at base into short, conspicuous claw, usually conspicuously fringed with long, slender hairs, adaxial surface ± papillose, bearing a few long hairs distal to claw, apex acute to acuminate; glands transversely oblong, depressed, arched upward, bordered proximally by narrower, crenate membrane, with short, thick hairs toward distal margin of enclosed surface, both fringe of lower membrane and hairs densely long-papillose; filaments basally dilated, ± equaling anthers; anthers oblong-lanceolate, apex acute to short-apiculate. |
erect; perianth open, campanulate; sepals lanceolate, 2–3 cm, apex acuminate; petals lavender, with longitudinal median abaxial green stripe, with or without blotches, broadly cuneate to obovate, 3–4 cm, with a few short hairs near gland; glands round, depressed, surrounded by conspicuously fringed membrane, densely covered with short, distally branching hairs; filaments 6–8 mm; anthers red-brown, oblong, 7–10 mm, apex obtuse. |
Capsules | erect, 3-winged, ellipsoid, base and apex acute. |
erect, brown, lanceoloid-linear, 3-angled, 2–3 cm. |
Seeds | irregular. |
light beige, translucent, flat. |
2n | = 20. |
|
Calochortus lyallii |
Calochortus excavatus |
|
Phenology | Flowering late spring–mid summer. | Flowering spring. |
Habitat | Dry slopes, open coniferous forests | Grassy meadows in shadscale scrub |
Elevation | 300–1500 m (1000–4900 ft) | 1200–2000 m (3900–6600 ft) |
Distribution |
WA; BC
|
CA |
Discussion | Calochortus excavatus is found only in the eastern Sierra Nevada in Mono and Inyo counties. It is threatened by groundwater depletion. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
|
Source | FNA vol. 26, p. 130. | FNA vol. 26, p. 137. |
Parent taxa | Liliaceae > Calochortus | Liliaceae > Calochortus |
Sibling taxa | ||
Name authority | Baker: J. Linn. Soc., Bot. 14: 305. (1874) | Greene: Pittonia 2: 71. (1890) |
Web links |