Allium tuolumnense
Madroño 36: 128. 1989.
Bulbs usually solitary, not clustered on stout, primary rhizomes, ovoid, 1.3–2 × 1.4–2 cm; outer coats enclosing single bulb, dark reddish-brown, membranous, lacking cellular reticulation or cells arranged in only 2–3 rows distal to roots, ± quadrate, without fibers; inner coats light-brown, cells obscure, quadrate. Leaves persistent, withering from tip by anthesis, 1, basally sheathing, sheath not extending much above soil surface; blade solid, terete, 30–55 cm × 2–4 mm. Scape persistent, solitary, erect, solid, terete, 25–50 cm × 2–4 mm. Umbel persistent, erect, compact, 20–60-flowered, hemispheric, bulbils unknown; spathe bracts persistent, usually 3, 7–8-veined, ovate, ± equal, apex attenuate. Flowers saucer-shaped, 6–8 mm; tepals spreading from base, white or flushed with pink, broadly ovate, ± equal, becoming papery in fruit, margins entire, apex obtuse to nearly round, not recurved at tip; stamens included; anthers yellow; pollen yellow; ovary crested; processes 6, prominent, ± triangular, margins laciniate; style linear, equaling stamens; stigma capitate, 3-lobed, lobes slender, recurved; pedicel 7–20 mm. Seed-coat dull; cells minutely roughened. 2n = 14.
Phenology: Flowering Mar–May.
Habitat: Serpentine soil on open hillsides
Elevation: 400–600 m
Distribution
Calif.
Discussion
Of conservation concern.
Allium tuolumnense is known only from the foothills of the central Sierra Nevada, Rawhide Hill and Red Hills.
Selected References
None.
Lower Taxa
"thicker" is not a number."broad" is not a number.