Calochortus howellii |
Calochortus venustus |
|
---|---|---|
Howell's mariposa lily |
butterfly mariposa lily, square mariposa tulip |
|
Habit | Plants bulbose; bulb coat membranous. | |
Stems | slender, not branching or rarely branching in axil of cauline leaf, straight, 2–4 dm. |
usually branching, 1–6 dm. |
Leaves | basal persistent, 20–35 cm; blade gradually tapering distally, adaxially pubescent. |
basal withering, 1–2 dm; blade linear. |
Inflorescences | subumbellate, 1–3-flowered; bracts 2, subopposite, linear to narrowly lanceolate, attenuate, 1–3 cm. |
subumbellate, 1–6(–10)-flowered; bracts 2–8 cm. |
Flowers | erect; perianth open, campanulate; sepals shorter than petals, ovate-acuminate, glabrous; petals yellowish white, with purplish hairs toward base, broadly obovate, cuneate, inconspicuously fringed laterally, sparingly short-hairy adaxially, apex rounded; glands transversely oblong, slightly depressed, densely covered with short, distally branching hairs, the bases of which unite at lower margin to form inconspicuous, discontinuous membranes; filaments shorter than anthers; anthers oblong-lanceolate, apex acute to short-apiculate. |
erect; perianth open, campanulate; sepals lanceolate, 3–5 cm, apex recurved; petals white to brightly or deeply yellow, purple, or dark red, with dark red median blotch, often with second paler distal blotch, obovate or cuneate to clawed, rounded, 3–5 cm, with scattered proximal hairs, apex retuse to obtuse; glands in lower middle of petal, ± square, sometimes ovate, not depressed, covered with short, orange to red-purple hairs; filaments usually equaling anthers; anthers linear-lanceolate to oblong. |
Capsules | erect, 3-winged, ellipsoid, ca. 2 cm, base and apex acute. |
erect, linear, angled, 5–6 cm. |
Seeds | light-colored, irregular. |
light beige, ± flat, 4–6 mm. |
2n | = 20. |
= 14. |
Calochortus howellii |
Calochortus venustus |
|
Phenology | Flowering late spring–mid summer. | Flowering mid spring–mid summer. |
Habitat | Dry, rocky, serpentine soils | Light sandy soil, often in decomposed granite in valley grassland, foothill woodland, and pine forest |
Elevation | 300–500 m (1000–1600 ft) | 300–2700 m (1000–8900 ft) |
Distribution |
OR
|
CA
|
Discussion | Calochortus howellii is known only from the Illinois River valley, Josephine County. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Flower color and pattern are very showy and exceedingly variable in Calochortus venustus. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 26, p. 129. | FNA vol. 26, p. 134. |
Parent taxa | Liliaceae > Calochortus | Liliaceae > Calochortus |
Sibling taxa | ||
Synonyms | Mariposa venusta | |
Name authority | S. Watson: Proc. Amer. Acad. Arts 23: 266. (1888) | Douglas ex Bentham: Trans. Hort. Soc. London, ser. 2, 1: 412, plate 15, fig. 3. (1835) |
Web links |