Allium brevistylum

S. Watson

Botany (Fortieth Parallel), 350. 1871

Treatment appears in FNA Volume 26. Treatment on page 246. Mentioned on page 228.
Click plate for higher resolution version.
Bulbs 2–4, terminating thick, iris-like rhizome, elongate, 2–3 × 0.6–1 cm; outer coats enclosing single bulb, grayish or brownish, membranous, minutely striate, cells in parallel vertical rows, narrow, elongate, not fibrous-reticulate, fibers persistent, parallel, few, coarse; inner coats whitish, cells narrowly vertically elongate. Leaves persistent, green at anthesis, 2–5, basally sheathing, sheaths not extending much above soil level; blade solid, flat, 10–40 cm × 2–8 mm, margins entire. Scape persistent, solitary, erect, solid, flattened and narrowly winged distally, 20–60 cm × 1.5–4 mm. Umbel persistent, erect, loose, 7–20-flowered, subhemispheric, bulbils unknown; spathe bracts persistent, 2, 3–5-veined, ovate, ± equal, apex acute. Flowers narrowly urceolate, 10–13 mm; tepals erect, pink, lanceolate, ± equal, withering in fruit, margins entire, apex acuminate, midribs somewhat thickened; stamens included, ca. 1/2 as long as tepals; anthers yellow; pollen light yellow; ovary crestless; style linear, equaling stamens; stigma capitate, distinctly 3-lobed; pedicel 8–35 mm, elongating and becoming stout and curved in fruit. Seed coat dull or shining; cells each with minute, central papilla, or obscurely and minutely roughened. 2n = 14.

Phenology: Flowering Jun–Aug.
Habitat: Swampy meadows and along streams, rarely on wooded slopes
Elevation: 2200–3400 m


V26 435-distribution-map.jpg

Colo., Idaho, Mont., N.Mex., Utah, Wyo.


Allium brevistylum is found only in the Rocky Mountains.



Lower Taxa

No lower taxa listed.