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Allium hickmanii

Allium hickmanii Eastw.  
Family: Amaryllidaceae
Hickman's Onion
Allium hickmanii image
  • FNA
  • Resources
Dale W. McNeal Jr. & T. D. Jacobsen in Flora of North America (vol. 26)
Bulbs 1-5+, not clustered on stout primary rhizome, increase bulbs absent or ± equaling parent bulbs, never appearing as basal cluster, ovoid to ± globose, 0.8-1.2 × 0.7-1.2 cm; outer coats enclosing 1 or more bulbs, gray to gray-brown, prominently cellular-reticulate, membranous, cells arranged in ± vertical rows, forming irregular herringbone pattern, transversely elongate, wavy, V-shaped, without fibers; inner coats white, cells obscure, ± quadrate. Leaves persistent, withering from tip by anthesis, 2, basally sheathing, sheaths not extending much above soil level; blades solid, subterete, 3-20 cm × 0.5-1 mm, margins entire. Scape persistent, solitary, erect, solid, terete, (3-)5-15 (-17) cm × 0.5-2 mm. Umbel persistent, erect, compact, 4-15-flowered, hemispheric, bulbils unknown; spathe bracts persistent, 2, 3-5-veined, broadly ovate, ± equal, apex mucronate. Flowers campanulate, 5-7 mm; tepals erect, white to pale pink, lanceolate to lance-ovate, ± equal, becoming papery in fruit and remaining erect, margins entire, apex acute or obtuse, becoming ± involute at tip and appearing short-acuminate; stamens included; anthers white; pollen white; ovary crested or crestless; processes 3, central, rounded, very minute, margins entire; style linear, equaling stamens; stigma capitate, scarcely thickened, unlobed; pedicel 4-12 mm. Seed coat dull; cells minutely roughened. 2n = 14.

Flowering Mar--May. Grassy, wooded slopes and flats; of conservation concern; 0--50 m; Calif.

Allium hickmanii is a rare endemic of the Monterey Peninsula and Arroyo de la Cruz.

Allium hickmanii
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Allium hickmanii image
Allium hickmanii image
Allium hickmanii image
Allium hickmanii image
Allium hickmanii image
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Allium hickmanii image
Allium hickmanii image
Allium hickmanii image
Allium hickmanii image
Allium hickmanii image
Allium hickmanii image
Allium hickmanii image
Allium hickmanii image
Allium hickmanii image
Allium hickmanii image
Allium hickmanii image
Allium hickmanii image
Allium hickmanii image
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This project was made possible in part by the Institute of Museum and Library Services [MG-70-19-0057-19].

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