Calochortus howellii |
Calochortus superbus |
|
---|---|---|
Howell's mariposa lily |
superb mariposa lily, yellow mariposa |
|
Habit | Plants bulbose; bulb coat membranous. | |
Stems | slender, not branching or rarely branching in axil of cauline leaf, straight, 2–4 dm. |
4–6 dm. |
Leaves | basal persistent, 20–35 cm; blade gradually tapering distally, adaxially pubescent. |
basal withering, 2–3 dm; blade linear. |
Inflorescences | subumbellate, 1–3-flowered; bracts 2, subopposite, linear to narrowly lanceolate, attenuate, 1–3 cm. |
subumbellate, 1–3-flowered; bracts 2–8 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, each member with median brown or purple blotch surrounded by bright yellow zone; sepals lanceolate, attenuate, 2–4 cm; petals white to yellowish or lavender, usually streaked with purple toward base, obovate to cuneate, rounded, 2–4 cm, with a few short hairs near gland, apex retuse to obtuse; glands linear, strongly chevron-shaped to weakly lunate, not depressed, densely covered with short hairs; filaments 7–9 mm; anthers lanceolate-linear to oblong, 8–10 mm, apex acute to obtuse. |
Capsules | erect, 3-winged, ellipsoid, ca. 2 cm, base and apex acute. |
erect, linear, angled, 5–6 cm, apex acute. |
Seeds | light-colored, irregular. |
|
2n | = 20. |
= 12, 14, 20, 26. |
Calochortus howellii |
Calochortus superbus |
|
Phenology | Flowering late spring–mid summer. | Flowering late spring–mid summer. |
Habitat | Dry, rocky, serpentine soils | Open slopes, dry meadows or wooded places in valley grassland, foothill woodland, pine forest |
Elevation | 300–500 m [1000–1600 ft] | 0–1700 m [0–5600 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.) |
|
Source | FNA vol. 26, p. 129. | FNA vol. 26, p. 134. |
Parent taxa | ||
Sibling taxa | ||
Synonyms | Mariposa superba | |
Name authority | S. Watson: Proc. Amer. Acad. Arts 23: 266. (1888) | Purdy ex J. T. Howell: Leafl. W. Bot. 1: 11. (1932) |
Web links |