Calochortus ambiguus |
Calochortus howellii |
|
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doubting mariposa lily |
Howell's mariposa lily |
|
Habit | Plants often bulbose; bulb coat membranous. | |
Stems | usually branching, straight. |
slender, not branching or rarely branching in axil of cauline leaf, straight, 2–4 dm. |
Leaves | basal withering; blade linear-attenuate. |
basal persistent, 20–35 cm; blade gradually tapering distally, adaxially pubescent. |
Inflorescences | subumbellate, 1–4-flowered. |
subumbellate, 1–3-flowered; bracts 2, subopposite, linear to narrowly lanceolate, attenuate, 1–3 cm. |
Flowers | erect; perianth pinkish or bluish gray, infrequently with longitudinal gray stripe, open, campanulate; sepals invested near gland, with yellowish, distally enlarged or branching, gland-tipped hairs, base sometimes marked with dull purple, apex acuminate; petals with median blotch usually surrounded by yellow zone, ± equaling sepals, base sometimes marked with dull purple; glands round to lunate, depressed, surrounded with narrow, deeply fringed membrane, densely covered with short, distally branching hairs; filaments shorter than anthers; anthers oblong-lanceolate, apex obtuse to acute. |
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. |
Capsules | erect, linear-oblong, 3-angled, apex acute. |
erect, 3-winged, ellipsoid, ca. 2 cm, base and apex acute. |
Seeds | flat. |
light-colored, irregular. |
2n | = 18. |
= 20. |
Calochortus ambiguus |
Calochortus howellii |
|
Phenology | Flowering late spring–summer. | Flowering late spring–mid summer. |
Habitat | Dry soils | Dry, rocky, serpentine soils |
Elevation | 1100–2700 m (3600–8900 ft) | 300–500 m (1000–1600 ft) |
Distribution |
AZ; NM; UT
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OR
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Discussion | Calochortus howellii is known only from the Illinois River valley, Josephine County. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
|
Source | FNA vol. 26. | FNA vol. 26, p. 129. |
Parent taxa | Liliaceae > Calochortus | Liliaceae > Calochortus |
Sibling taxa | ||
Synonyms | C. watsonii var. ambiguus | |
Name authority | (M. E. Jones) Ownbey: Ann. Missouri Bot. Gard. 27: 505. (1940) | S. Watson: Proc. Amer. Acad. Arts 23: 266. (1888) |
Web links |