Allium bolanderi S.Watson

Bolander's onion (en)

Species

Angiosperms > Asparagales > Amaryllidaceae > Allium

Characteristics

Bulbs 1–6+, not basally clustered, replaced annually by new bulbs borne terminally on rhizomes; rhizomes 1–3, inconspicuous, slender, less than 2 cm including renewal bulb; parent bulbs disappearing by anthesis except for still-functional roots and bulb coat, oblique-ovoid to ± oblong, 0.7–1.4 × 0.5–1.2 cm; outer coats not enclosing bulbs, brown to gray-brown, ± obscurely reticulate, membranous, reticulum delicate, cells transversely elongate, V-shaped or ± wavy, forming obscure herringbone pattern, without fibers; inner coats white, cells obscure, quadrate to ± rectangular, often contorted. Leaves persistent, withering from tip at anthesis, 2–3, basally sheathing, sheaths not extending much above soil surface; blade solid, subterete to ± channeled, 9–30 cm × 1–2 mm, margins entire. Scape persistent, solitary, erect, solid, terete, 10–35 cm × 1–3 mm. Umbel persistent, erect, compact to loose, 10–20-flowered, hemispheric, bulbils unknown; spathe bracts persistent, 2, 4–6-veined, lanceolate to lance-ovate, ± equal, apex acuminate. Flowers conic to campanulate, 7–14 mm; tepals erect, reddish purple, rarely white, narrowly lanceolate to lance-ovate, ± equal, becoming rigid and carinate in fruit, margins finely denticulate (inner tepal more prominently so), apex acute to obtuse, becoming involute at tip and appearing acuminate; stamens included; anthers yellow; pollen yellow; ovary crested; processes 3, central, 2-lobed, minute, margins entire; style linear, equaling stamens; stigma capitate, obscurely 3-lobed, scarcely thickened; pedicel 10–20 mm. Seed coat dull; cells minutely roughened.
More
An onion family plant. It is a bulb plant. It grows to 20 cm high.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention deciduous
Sexuality hermaphrodite
Pollination entomogamy
Spread -
Mature width (meter) -
Mature height (meter) 0.2
Root system rhizome
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway c3

Environment

Plant grow naturally in South-western North America in California on heavy soils and openings in brush and woods below 900 metres.
More
Heavy soils and openings in brush and woods; at elevations below 900 metres.
Light 7-9
Soil humidity 3-6
Soil texture 3-5
Soil acidity 3-7
Soil nutriment -
Hardiness (USDA) 7-8

Usage

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

Cultivation

Plants can be grown from seed or by division of clumps. 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°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Distribution

Allium bolanderi world distribution map, present in United States of America

Identifiers

LSID urn:lsid:ipni.org:names:527698-1
WFO ID wfo-0000755800
COL ID BTZZ
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Allium bolanderi

Lower taxons

Allium bolanderi var. mirabile Allium bolanderi var. bolanderi