Calochortus umpquaensis |
Calochortus ambiguus |
|
---|---|---|
Umpqua mariposa-lily |
doubting mariposa lily |
|
Habit | Plants often bulbose; bulb coat membranous. | |
Stems | not branching, straight, often scapelike, 2–3 dm, glabrous or glaucous. |
usually branching, straight. |
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; blade linear-attenuate. |
Inflorescences | subumbellate, 1–4-flowered. |
|
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 pinkish or bluish gray, infrequently with longitudinal gray stripe, open, campanulate; sepals invested near gland, with yellowish, distally enlarged or branching, gland-tipped hairs, base sometimes marked with dull purple, apex acuminate; petals with median blotch usually surrounded by yellow zone, ± equaling sepals, base sometimes marked with dull purple; glands round to lunate, depressed, surrounded with narrow, deeply fringed membrane, densely covered with short, distally branching hairs; filaments shorter than anthers; anthers oblong-lanceolate, apex obtuse to acute. |
Capsules | nodding, 3–5.4 cm. |
erect, linear-oblong, 3-angled, apex acute. |
Seeds | 2.8–3.5 mm, with inflated bulbous crest and hollow lateral ridge. |
flat. |
2n | = 20. |
= 18. |
Calochortus umpquaensis |
Calochortus ambiguus |
|
Phenology | Flowering late spring–mid summer. | Flowering late spring–summer. |
Habitat | Grassland-forest ecotones in serpentine-derived soils | Dry soils |
Elevation | 300–500 m (1000–1600 ft) | 1100–2700 m (3600–8900 ft) |
Distribution |
OR
|
AZ; NM; UT
|
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. |
Parent taxa | Liliaceae > Calochortus | Liliaceae > Calochortus |
Sibling taxa | ||
Synonyms | C. watsonii var. ambiguus | |
Name authority | Fredricks: Syst. Bot. 14: 12, figs. 1, 2, 3f–j, 4, 5. (1989) | (M. E. Jones) Ownbey: Ann. Missouri Bot. Gard. 27: 505. (1940) |
Web links |