Calochortus howellii |
Calochortus gunnisonii |
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Howell's mariposa lily |
Gunnison's mariposa lily |
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Habit | Plants usually bulbose; bulb coat, when present, membranous. | |||||
Stems | slender, not branching or rarely branching in axil of cauline leaf, straight, 2–4 dm. |
not branching, straight, 2.4–5.5 dm. |
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Leaves | basal persistent, 20–35 cm; blade gradually tapering distally, adaxially pubescent. |
basal withering, 18–35 cm; blade linear. |
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Inflorescences | subumbellate, 1–3-flowered; bracts 2, subopposite, linear to narrowly lanceolate, attenuate, 1–3 cm. |
subumbellate, 1–3-flowered. |
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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 marked similar to petals, lanceolate, usually much shorter, glabrous, apex acute; petals white to purple, greenish adaxially, clawed, often with narrow, transverse purple band distal to gland and purple blotch on claw, obovate, cuneate, usually obtuse and rounded distally; glands transversely oblong, not depressed, densely bearded with distally branching hairs, outermost of which somewhat connate at base to form discontinuous, deeply fringed membranes; filaments shorter than anthers; anthers lanceolate, apex acute to apiculate. |
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Capsules | erect, 3-winged, ellipsoid, ca. 2 cm, base and apex acute. |
erect, linear-oblong, 3-angled, 3–6 cm, apex acute. |
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Seeds | light-colored, irregular. |
flat, inflated. |
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2n | = 20. |
= 18. |
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Calochortus howellii |
Calochortus gunnisonii |
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Phenology | Flowering late spring–mid summer. | |||||
Habitat | Dry, rocky, serpentine soils | |||||
Elevation | 300–500 m (1000–1600 ft) | |||||
Distribution |
OR
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wc North America
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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.) |
Varieties 2 (2 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 26, p. 129. | FNA vol. 26, p. 140. | ||||
Parent taxa | ||||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Name authority | S. Watson: Proc. Amer. Acad. Arts 23: 266. (1888) | S. Watson: Botany (Fortieth Parallel), 348. (1871) | ||||
Web links |