Calochortus umbellatus |
Calochortus obispoensis |
|
---|---|---|
Oakland mariposa lily, Oakland star-tulip |
San Luis mariposa-lily |
|
Habit | Plants usually bulbose; bulb coat fibrous-reticulate. | |
Stems | usually branching, 8–25 cm, not bearing bulblets. |
slender, branching, straight, 3–6 dm. |
Leaves | basal persistent, 2–4 dm; blade lanceolate, flat; cauline usually present. |
basal withering, 2–3 dm; blade linear-lanceolate. |
Inflorescences | subumbellate, 3–12-flowered. |
2–6-flowered. |
Flowers | ± erect; perianth open, campanulate; sepals 10–14 mm; petals white to pale pink, usually with purple blotch near gland, widely obovate to cuneate, 12–18 mm, adaxial surface not ciliate, ± glabrous, margins irregularly dentate distally; glands basally convex, covered by broad, ciliate membrane, bordered distally by short hairs; filaments longer than anthers; anthers oblong, apex acute or obtuse. |
erect; perianth opening flat, campanulate; sepals often reflexed, lanceolate, 1–3 cm, glabrous, apex long-tapered; petals yellow to deep orange, purple-brown at tip, oblong-ovate, 1–2 cm, conspicuously bearded, margins fringed or dentate, apex fringed with hairy tufts; glands round, slightly depressed, glabrous, surrounded and obscured by ring of slender, dense hairs united at base; filaments 7–8 mm; anthers oblong, apex acute. |
Capsules | nodding, 3-winged, 1–2 cm. |
erect, linear, 3-angled, 3–4 cm, apex acute. |
Seeds | dark brown, irregular. |
light yellow, translucent. |
2n | = 20. |
= 18. |
Calochortus umbellatus |
Calochortus obispoensis |
|
Phenology | Flowering early spring–early summer. | Flowering late spring–mid summer. |
Habitat | Openings in chaparral or woods, often on serpentine | Dry stony hills, canyons, edge of chaparral, serpentine |
Elevation | 100–700 m (300–2300 ft) | 100–500 m (300–1600 ft) |
Distribution |
CA
|
CA |
Discussion | Calochortus umbellatus grows around San Francisco Bay. It is reported also from Lake County. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Of conservation concern. Calochortus obispoensis is restricted to San Luis Obispo County. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 26, p. 127. | FNA vol. 26, p. 141. |
Parent taxa | Liliaceae > Calochortus | Liliaceae > Calochortus |
Sibling taxa | ||
Name authority | Alph. Wood: Proc. Acad. Nat. Sci. Philadelphia 20: 168. (1868) | Lemmon: Bot. Gaz. 11: 180. (1886) |
Web links |