Calochortus umpquaensis |
Calochortus vestae |
|
---|---|---|
Umpqua mariposa-lily |
Coast Range mariposa lily |
|
Habit | Plants strongly bulbose; bulb coat membranous. | |
Stems | not branching, straight, often scapelike, 2–3 dm, glabrous or glaucous. |
usually branching, straight, 3–5 dm. |
Leaves | basal solitary, clasping; blade narrowly lanceolate, hairy, adaxially hispid, abaxially glabrous, sometimes glaucous. Inflorescences 1–several-flowered; bracts 2, suboppo-site, narrowly lanceolate. |
basal withering, 1–2 dm; blade linear. |
Inflorescences | subumbellate, 1–3-flowered; bracts 2–5 cm. |
|
Flowers | erect; perianth open, campanulate; sepals lanceolate-acuminate, ca. 2 cm; petals white to cream, with dark purple-black, pentagonal to lunate blotch, broadly oblong to obovate, 3.5 cm, bearded, adaxial surface typically minutely papillose, margins erose; glands transversely oblong-lunate, slightly depressed, with 0.7–1.4 mm-wide band of short dendritic hairs distally, hairs surrounded by lime-green coloration and purple striations; anthers lanceolate, apex acuminate. |
erect; perianth open, campanulate; sepals linear-lanceolate, attenuate, 2–3 cm; petals white to purplish, streaked red to purple proximal to gland, with median red-brown blotch surrounded by pale yellow zone, cuneate to obovate, 3–4 cm, with a few short hairs near gland, apex rounded; glands ± doubly lunate, not depressed, densely covered with short hairs; filaments equaling anthers; anthers oblong-linear, apex obtuse or acute. |
Capsules | nodding, 3–5.4 cm. |
erect, linear, angled, 4–7 cm, apex acute. |
Seeds | 2.8–3.5 mm, with inflated bulbous crest and hollow lateral ridge. |
light beige, flat, 4–6 mm. |
2n | = 20. |
= 28. |
Calochortus umpquaensis |
Calochortus vestae |
|
Phenology | Flowering late spring–mid summer. | Flowering late spring–mid summer. |
Habitat | Grassland-forest ecotones in serpentine-derived soils | Heavy clay soils in mixed evergreen and pine forests |
Elevation | 300–500 m (1000–1600 ft) | 500–900 m (1600–3000 ft) |
Distribution |
OR
|
CA |
Discussion | Of conservation concern. Calochortus umpquaensis is known only from Watson and Ace Williams mountains on both sides of the Little River, Douglas County. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
|
Source | FNA vol. 26, p. 130. | FNA vol. 26, p. 135. |
Parent taxa | Liliaceae > Calochortus | Liliaceae > Calochortus |
Sibling taxa | ||
Name authority | Fredricks: Syst. Bot. 14: 12, figs. 1, 2, 3f–j, 4, 5. (1989) | Purdy: Gard. Chron., ser. 3, 18: 14. (1895) |
Web links |