Calochortus howellii |
Calochortus luteus |
|
---|---|---|
Howell's mariposa lily |
yellow mariposa, yellow mariposa lily |
|
Stems | slender, not branching or rarely branching in axil of cauline leaf, straight, 2–4 dm. |
slender, 2–5 dm. |
Leaves | basal persistent, 20–35 cm; blade gradually tapering distally, adaxially pubescent. |
basal withering, 1–2 dm; blade linear. |
Inflorescences | subumbellate, 1–3-flowered; bracts 2, subopposite, linear to narrowly lanceolate, attenuate, 1–3 cm. |
subumbellate, 1–4-flowered; bracts 1–8 cm. |
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; perianth open, campanulate; sepals lanceolate-oblong, attenuate, 2–3 cm; petals deep yellow, usually streaked red-brown proximally, often with median red-brown blotch, cuneate to obovate, 2–4 cm, with a few slender hairs near gland; glands ± lunate to oblong, not depressed, covered with short, matted hairs; filaments 7–9 mm; anthers linear-oblong, 4–6 mm, apex obtuse or acute. |
Capsules | erect, 3-winged, ellipsoid, ca. 2 cm, base and apex acute. |
erect, lanceoloid-linear, angled, 3–6 cm. |
Seeds | light-colored, irregular. |
light beige, flat. |
2n | = 20. |
= 14, 28. |
Calochortus howellii |
Calochortus luteus |
|
Phenology | Flowering late spring–mid summer. | Flowering late spring–mid summer. |
Habitat | Dry, rocky, serpentine soils | Heavy soils in grasslands, open woodlands, mixed evergreen forests |
Elevation | 300–500 m [1000–1600 ft] | 0–700 m [0–2300 ft] |
Distribution |
OR
|
CA
|
Discussion | Calochortus howellii is known only from the Illinois River valley, Josephine County. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Coastal plants of Calochortus luteus are mostly triploid, while those of the interior are mostly diploid. Occasionally this species hybridizes with C. superbus. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 26, p. 129. | FNA vol. 26, p. 135. |
Parent taxa | ||
Sibling taxa | ||
Synonyms | Mariposa lutea | |
Name authority | S. Watson: Proc. Amer. Acad. Arts 23: 266. (1888) | Douglas ex Lindley: Edwards’s Bot. Reg. 19: plate 1567. (1833) |
Web links |