Allium geyeri S.Watson

Geyer's onion (en)

Species

Angiosperms > Asparagales > Amaryllidaceae > Allium

Characteristics

Bulbs 2–10+, not rhizomatous, ovoid or more elongate, 1–2.5 × 0.8–2 cm; outer coats enclosing 1 or more bulbs, gray or brown, reticulate, cells rather coarse-meshed, open, fibrous; inner coats whitish, cells vertically elongate and regular or obscure. Leaves persistent, usually green at anthesis, usually 3–5, sheathing less than 1/4 scape; blade solid, ± straight, flat, channeled, (6–)12–30 cm × 1–3(–5) mm, margins entire or denticulate. Scape persistent, solitary, erect, terete or somewhat 2-angled, 10–50 cm × 1–3 mm. Umbel persistent, erect, compact, 10–25-flowered, hemispheric to globose, not producing bulbils, or 0–5-flowered, largely replaced by ovoid, acuminate bulbils; spathe bracts persistent, 2–3, mostly 1-veined, ovate to lanceolate, ± equal, apex acuminate, beakless. Flowers urceolate-campanulate, (4–)6–8(–10) mm; tepals erect or spreading, pink to white, ovate to lanceolate, ± equal, not withering in fruit and permanently investing fruit, or withering if fruit not produced, midribs papillose, becoming callous-keeled, margins often obscurely toothed, apex obtuse to acuminate; stamens included; anthers yellow; pollen yellow; ovary when present, inconspicuously crested; processes 6, central, low, distinct or connate in pairs across septa, ± erect, rounded, margins entire, becoming variously developed or obsolete in fruit; style linear, ± equaling stamens; stigma capitate, unlobed or obscurely lobed; pedicel becoming rigid and stiffly spreading in fruit, 8–13 mm. Seed coat shining; cells each with minute, central papilla.
More
An onion family plant. A bulb plant. It grows to 45 cm high. The bulbs are 15-25 mm across. The bulbs are oval. The leaves are flattened and 15-50 cm long. The flowers are bell-shaped and white or pale pink. There are up to 25 flowers in a head.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention deciduous
Sexuality hermaphrodite
Pollination entomogamy
Spread -
Mature width (meter) -
Mature height (meter) 0.45
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway c3

Environment

It grows naturally in low meadows and by streams in the Rocky Mountains in Western North America from Washington, Texas, Oregon, New Mexico, and Nevada. It suits hardiness zones 5-10.
More
Low meadows and by streams in the Rocky Mountains. Moist, open slopes, meadows, or stream banks in mountains; at elevations from 200-4,000 metres.
Light 7-9
Soil humidity 3-6
Soil texture 3-5
Soil acidity 3-7
Soil nutriment -
Hardiness (USDA) 6-9

Usage

The bulbs are eaten raw or cooked. They are often dried and later cooked. The leaves are eaten raw or cooked. The flowers are used raw to flavour salads.
Uses medicinal spice
Edible bulbs flowers leaves roots
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

It can be grown from seed or division of the bulbs in summer when they die down. Bulbs should be planted fairly deeply.
Mode divisions seedlings
Germination duration (days) 30 - 365
Germination temperacture (C°) 10
Germination luminosity light
Germination treatment stratification
Minimum temperature (C°) -18
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Allium geyeri unspecified picture

Distribution

Allium geyeri world distribution map, present in Colombia and United States of America

Conservation status

Allium geyeri threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:8773-2
WFO ID wfo-0000756309
COL ID 5TXC6
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Allium geyeri

Lower taxons

Allium geyeri var. tenerum Allium geyeri var. geyeri