Calochortus umpquaensis |
Calochortus flexuosus |
|
---|---|---|
Umpqua mariposa-lily |
winding mariposa, winding mariposa lily |
|
Habit | Plants rarely bulbose; bulb coat, when present, membranous. | |
Stems | not branching, straight, often scapelike, 2–3 dm, glabrous or glaucous. |
twining or straggling over ground, branching, 1–2 dm, usually sinuous. |
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 | 1–4-flowered; bracts 1–3 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, each member with transverse yellow band; sepals lanceolate to lanceolate-ovate, 2–3 cm; petals white with lilac tinge, darker veined, especially distally, sometimes with purple blotch distal to gland, obovate to cuneate, 3–4 cm, with sparse or dense, short or long hairs near gland, apex rounded; glands transverse-lunate or wider, densely short-hairy; filaments 6–10 mm; anthers oblong, 5–7 mm, apex obtuse or acute. |
Capsules | nodding, 3–5.4 cm. |
erect, lanceoloid, angled, stout, 3–4 cm. |
Seeds | 2.8–3.5 mm, with inflated bulbous crest and hollow lateral ridge. |
light beige, flat. |
2n | = 20. |
= 14. |
Calochortus umpquaensis |
Calochortus flexuosus |
|
Phenology | Flowering late spring–mid summer. | Flowering spring. |
Habitat | Grassland-forest ecotones in serpentine-derived soils | Dry stony slopes, desert hills, mesas, creosote bush scrub, sagebrush scrub |
Elevation | 300–500 m (1000–1600 ft) | 500–2000 m (1600–6600 ft) |
Distribution |
OR
|
AZ; CA; CO; NM; NV; 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, p. 131. |
Parent taxa | Liliaceae > Calochortus | Liliaceae > Calochortus |
Sibling taxa | ||
Name authority | Fredricks: Syst. Bot. 14: 12, figs. 1, 2, 3f–j, 4, 5. (1989) | S. Watson: Amer. Naturalist 7: 303. (1873) |
Web links |