Liliaceae : Allium cernuum

Allium cernuum is a perennial herb, which grows from a membranous bulb with stems 30 cm to 45 cm in height, that are usually bent just below the cluster of flowers. Each mature bulb typically bears a single flowering stem with up to 30 flowers. The leaves are keeled grass-like, flat or channeled and 2-4 mm wide. Flowers emerge from a membranous spathe in July and August, with the umbel nodding or laterally projected. The tepals are 3-5 mm long and white to pink in color. The 6 stamens are exerted from the tepals, and the ovary is prominently 6-crested. The fruit is a 3 valved capsule. This species is commonly found throughout much of Northern America in mountainous and cool regions, on ledges, gravels, rocky or wooded slopes and crests. Because of its wide distribution, it is variable in plant size, flower color and bloom time.

Publication Details

Journal
Open PRAIRIE (South Dakota State University)
Published
2025-01-01
Primary Topic
Particle Accelerators and Free-Electron Lasers
Type
article
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article

Liliaceae : Allium cernuum

Open PRAIRIE (South Dakota State University)
Particle Accelerators and Free-Electron Lasers
article

Liliaceae : Allium cernuum

article en

Abstract

Allium cernuum is a perennial herb, which grows from a membranous bulb with stems 30 cm to 45 cm in height, that are usually bent just below the cluster of flowers. Each mature bulb typically bears a single flowering stem with up to 30 flowers. The leaves are keeled grass-like, flat or channeled and 2-4 mm wide. Flowers emerge from a membranous spathe in July and August, with the umbel nodding or laterally projected. The tepals are 3-5 mm long and white to pink in color. The 6 stamens are exerted from the tepals, and the ovary is prominently 6-crested. The fruit is a 3 valved capsule. This species is commonly found throughout much of Northern America in mountainous and cool regions, on ledges, gravels, rocky or wooded slopes and crests. Because of its wide distribution, it is variable in plant size, flower color and bloom time.

Open PRAIRIE (South Dakota State University)
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Particle Accelerators and Free-Electron Lasers
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Liliaceae : Allium cernuum · Open PRAIRIE (South Dakota State University) (2025) | TGRS Research Map | TGRS