Calochortus umpquaensis |
Calochortus monophyllus |
|
---|---|---|
Umpqua mariposa-lily |
yellow cat's ear, yellow star-tulip |
|
Stems | not branching, straight, often scapelike, 2–3 dm, glabrous or glaucous. |
slender, branching or not, 0.8–2 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 persistent, 1–3 dm; blade linear, flat. |
Inflorescences | 1–6-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 at anthesis; perianth open, campanulate; sepals oblong-lanceolate, 16–20 mm, glabrous, apex acuminate; petals deep yellow, often with red-brown blotch distal to base, narrowly obovate, 12–20 mm, ciliate, adaxial surface densely branching-hairy; glands bordered proximally by ciliate membrane, distally by short hairs; anthers short-tipped. |
Capsules | nodding, 3–5.4 cm. |
nodding, winged, oblong, 1–2 cm. |
Seeds | 2.8–3.5 mm, with inflated bulbous crest and hollow lateral ridge. |
dark brown, irregular. |
2n | = 20. |
= 20. |
Calochortus umpquaensis |
Calochortus monophyllus |
|
Phenology | Flowering late spring–mid summer. | Flowering spring. |
Habitat | Grassland-forest ecotones in serpentine-derived soils | Wooded slopes, clay-loam soils |
Elevation | 300–500 m (1000–1600 ft) | 400–1200 m (1300–3900 ft) |
Distribution |
OR
|
CA; OR
|
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. 124. |
Parent taxa | Liliaceae > Calochortus | Liliaceae > Calochortus |
Sibling taxa | ||
Synonyms | Cyclobothra monophylla | |
Name authority | Fredricks: Syst. Bot. 14: 12, figs. 1, 2, 3f–j, 4, 5. (1989) | (Lindley) Lemaire: Fl. Serres Jard. Eur. 5: 430b. (1849) |
Web links |