Allium bigelovii S. Wats.
Family: Amaryllidaceae
Bigelow's onion,  more...
Allium bigelovii image
Max Licher  
Bulbs usually solitary, not clustered on stout primary rhizome, ± globose, 1-1.5 × 1.2-1.5 cm; outer coats enclosing single bulb, dark brown, prominently reticulate, membranous, cells irregularly arranged, vertically elongate, rectangular to ± contorted, without fibers; inner coats white, cells obscure, quadrate. Leaves persistent, green at anthesis, 2, basally sheathing, sheaths not extending much above soil surface; blade solid, subterete to channeled, 16-21 cm × 2-4 mm, margins entire. Scape persistent, solitary, erect, solid, terete, 5-12 cm × 1-4 mm. Umbel persistent, erect, loose to ± compact, 10-25-flowered, hemispheric, bulbils unknown; spathe bracts persistent, 2, 2-11-veined, lance-ovate to ovate, ± equal, apex acute to acuminate. Flowers campanulate, (8-)10-14 mm; tepals erect, pink to reddish at tip and along midvein, otherwise white, lanceolate, ± equal, becoming papery and ± rigid in fruit, margins entire, apex acute; stamens included; anthers purple; pollen yellow; ovary crested; processes 6, prominent, flat, triangular, margins entire to coarsely toothed; style linear, equaling stamens; stigma capitate, scarcely thickened, obscurely 3-lobed; pedicel 10-15 mm. Seed coat shining; cells smooth. 2n = 14. Flowering late Mar--May. Open, rocky, gravelly slopes; 500--1700 m; Ariz., N.Mex. Allium bigelovii is an anomalous species that does not appear to be closely related to any other from North America. With its prominent ovarian crests, a relationship with the group of species around A. fimbriatum, A. nevadense, and A. sanbornii is suggested. Allium bigelovii differs from this group, however, in having two leaves and a seed coat with smooth cells. In addition its bulb-coat reticulation is unlike that of any other North American species.

FNA 2003, Martin and Hutchins 1980
Duration: Perennial Nativity: Native Lifeform: Forb/Herb General: Strongly scented scapose perennial from a usually solitary bulb that is generally globose and 1-1.5 cm in width with dark brown outer scales. Leaves: Basally sheathing with persistent leaves that are green at anthesis, usually 2, the blade solid to subterete or channeled, each 16-21 cm long by 2-4 mm in width, the margins entire. Flowers: Terminal and erect umbel on a scape 5-12 cm long by 1-4 mm wide, the umbel can be loose or compact with 10-25 flowers that have pink perianth parts, the tepals erect with acute apex and entire margins, pink to reddish at tip and along midvein, otherwise white; flowers April-May. Fruits: Capsule that is crested containing little shining seeds. Ecology: Open, rocky, or gravelly sites; 2,000-5,500 ft (610-1676 m). Distribution: Ranges across Arizona and New Mexico. Notes: The flowers look similar to A. macropetalum, but note the intense pink/red tips of the tepals. Ethnobotany: Unknown Etymology: Allium is Latin for garlic, while bigelovii is named for Dr. John Milton Bigelow (1804-1878) who collected under Whipple on the Pacific Railroad Survey of 1853-1854. Synonyms: None Editor: SBuckley, 2011
Allium bigelovii image
Max Licher  
Allium bigelovii image
Max Licher  
Allium bigelovii image
Patrick Alexander  
Allium bigelovii image
Patrick Alexander  
The National Science Foundation
This project made possible by National Science Foundation Award 1410069