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FNA | Family List | FNA Vol. 26 | Liliaceae | Calochortus

52. Calochortus ambiguus (M. E. Jones) Ownbey, Ann. Missouri Bot. Gard. 27: 505. 1940.

Calochortus watsonii M. E. Jones var. ambiguus M. E. Jones, Contr. W. Bot. 14: 26. 1912

Plants often bulbose; bulb coat membranous. Stems usually branching, straight. Leaves: basal withering; blade linear-attenuate. Inflorescences subumbellate, 1–4-flowered. 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. Capsules erect, linear-oblong, 3-angled, apex acute. Seeds flat. 2n = 18.

Flowering late spring--summer. Dry soils; 1100--2700 m; Ariz., N.Mex., Utah.


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