Calochortus umbellatus |
Calochortus nudus |
|
---|---|---|
Oakland mariposa lily, Oakland star-tulip |
naked mariposa lily, naked star tulip, Shasta star-tulip |
|
Stems | usually branching, 8–25 cm, not bearing bulblets. |
usually not branching, 1–3 dm. |
Leaves | basal persistent, 2–4 dm; blade lanceolate, flat; cauline usually present. |
basal persistent, 0.5–2 dm; blade lanceolate, tapering at base, flat, glabrous adaxially. |
Inflorescences | subumbellate, 3–12-flowered. |
1–several-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 open, campanulate; sepals lanceolate, 10–12 mm, glabrous, apex acuminate; petals pale lavender, widely obovate, 14–16 mm, adaxial surface ± glabrous, not ciliate; glands not deeply depressed, bordered proximally by wide, ciliate membranes; anthers linear-oblong, apex obtuse or acute. |
Capsules | nodding, 3-winged, 1–2 cm. |
erect, 3-winged, 1–2 cm. |
Seeds | dark brown, irregular. |
light brown, irregular. |
2n | = 20. |
= 20. |
Calochortus umbellatus |
Calochortus nudus |
|
Phenology | Flowering early spring–early summer. | Flowering late spring–mid summer. |
Habitat | Openings in chaparral or woods, often on serpentine | Moist grassy areas, meadows, lake and bog margins |
Elevation | 100–700 m (300–2300 ft) | 1200–2500 m (3900–8200 ft) |
Distribution |
CA
|
CA; OR
|
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.) |
Calochortus nudus hybridizes with C. minimus. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 26, p. 127. | FNA vol. 26, p. 128. |
Parent taxa | Liliaceae > Calochortus | Liliaceae > Calochortus |
Sibling taxa | ||
Synonyms | C. nudus var. shastensis, C. shastensis | |
Name authority | Alph. Wood: Proc. Acad. Nat. Sci. Philadelphia 20: 168. (1868) | S. Watson: Proc. Amer. Acad. Arts 14: 263. (1879) |
Web links |