Calochortus umpquaensis |
Calochortus macrocarpus |
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Umpqua mariposa-lily |
green-banded star-tulip, sagebrush mariposa-lily |
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Habit | Plants usually bulbose; bulb coat membranous. | |||||
Stems | not branching, straight, often scapelike, 2–3 dm, glabrous or glaucous. |
usually not branching, stout, 2–5 dm. |
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Leaves | basal solitary, clasping; blade narrowly lanceolate, hairy, adaxially hispid, abaxially glabrous, sometimes glaucous. Inflorescences 1–several-flowered; bracts 2, suboppo-site, narrowly lanceolate. |
basal withering, 0.5–1 dm; blade linear. |
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Inflorescences | subumbellate, 1–3-flowered; bracts 3–5 cm. |
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Flowers | erect; perianth open, campanulate; sepals lanceolate-acuminate, ca. 2 cm; petals white to cream, with dark purple-black, pentagonal to lunate blotch, broadly oblong to obovate, 3.5 cm, bearded, adaxial surface typically minutely papillose, margins erose; glands transversely oblong-lunate, slightly depressed, with 0.7–1.4 mm-wide band of short dendritic hairs distally, hairs surrounded by lime-green coloration and purple striations; anthers lanceolate, apex acuminate. |
erect; perianth open, campanulate; sepals lanceolate, 4–5 cm, apex acuminate; petals purple, with median green stripe on abaxial surface, obovate, 4–6 cm, bearded distal to gland, apex acuminate; glands triangular-sagittate, slightly depressed, densely covered with slender hairs; filaments 8–9 mm; anthers lanceolate-linear, ca. 1 cm, apex obtuse. |
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Capsules | nodding, 3–5.4 cm. |
erect, lanceoloid-linear, angled, 4–5 cm, apex acuminate. |
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Seeds | 2.8–3.5 mm, with inflated bulbous crest and hollow lateral ridge. |
flat, inflated. |
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2n | = 20. |
= 14. |
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Calochortus umpquaensis |
Calochortus macrocarpus |
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Phenology | Flowering late spring–mid summer. | |||||
Habitat | Grassland-forest ecotones in serpentine-derived soils | |||||
Elevation | 300–500 m (1000–1600 ft) | |||||
Distribution |
OR
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w North America
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Discussion | Of conservation concern. Calochortus umpquaensis is known only from Watson and Ace Williams mountains on both sides of the Little River, Douglas 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. 130. | FNA vol. 26, p. 136. | ||||
Parent taxa | Liliaceae > Calochortus | Liliaceae > Calochortus | ||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Synonyms | Mariposa macrocarpa | |||||
Name authority | Fredricks: Syst. Bot. 14: 12, figs. 1, 2, 3f–j, 4, 5. (1989) | Douglas: Trans. Hort. Soc. London 7: 276, plate 8. (1828) | ||||
Web links |
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