Calochortus howellii |
Calochortus lyallii |
|
---|---|---|
Howell's mariposa lily |
Lyall's mariposa-lily |
|
Stems | slender, not branching or rarely branching in axil of cauline leaf, straight, 2–4 dm. |
not branching or with branch in axil of cauline leaf, straight, 1–5 dm. |
Leaves | basal persistent, 20–35 cm; blade gradually tapering distally, adaxially pubescent. |
basal solitary, persistent, 1–3 dm × 2–20 mm, usually not exceeding inflorescence; blade tapering toward both ends. |
Inflorescences | subumbellate, 1–3-flowered; bracts 2, subopposite, linear to narrowly lanceolate, attenuate, 1–3 cm. |
subumbellate, 1–9-flowered; bracts 2–several, lanceolate to linear, attenuate, unequal, 1–5 cm; peduncle slender, becoming stiffly erect in fruit. |
Flowers | erect; perianth open, campanulate; sepals shorter than petals, ovate-acuminate, glabrous; petals yellowish white, with purplish hairs toward base, broadly obovate, cuneate, inconspicuously fringed laterally, sparingly short-hairy adaxially, apex rounded; glands transversely oblong, slightly depressed, densely covered with short, distally branching hairs, the bases of which unite at lower margin to form inconspicuous, discontinuous membranes; filaments shorter than anthers; anthers oblong-lanceolate, apex acute to short-apiculate. |
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. |
Capsules | erect, 3-winged, ellipsoid, ca. 2 cm, base and apex acute. |
erect, 3-winged, ellipsoid, base and apex acute. |
Seeds | light-colored, irregular. |
irregular. |
2n | = 20. |
= 20. |
Calochortus howellii |
Calochortus lyallii |
|
Phenology | Flowering late spring–mid summer. | Flowering late spring–mid summer. |
Habitat | Dry, rocky, serpentine soils | Dry slopes, open coniferous forests |
Elevation | 300–500 m [1000–1600 ft] | 300–1500 m [1000–4900 ft] |
Distribution |
OR
|
WA; BC
|
Discussion | Calochortus howellii is known only from the Illinois River valley, Josephine County. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
|
Source | FNA vol. 26, p. 129. | FNA vol. 26, p. 130. |
Parent taxa | ||
Sibling taxa | ||
Name authority | S. Watson: Proc. Amer. Acad. Arts 23: 266. (1888) | Baker: J. Linn. Soc., Bot. 14: 305. (1874) |
Web links |