Allium siskiyouense Ownbey ex Traub

Siskiyou onion (en)

Species

Angiosperms > Asparagales > Amaryllidaceae > Allium

Characteristics

Bulbs 1–5, not clustered on stout primary rhizome, increase bulbs absent or ± equaling parent bulbs, never appearing as basal cluster, rhizomes absent, ovoid, 0.8–2 × 0.8–2 cm; outer coats enclosing renewal bulbs, grayish to brown, membranous, lacking cellular reticulation or cells arranged in only 2–3 rows distal to roots, ± quadrate, without fibers; inner coats pink to red, cells obscure, ± quadrate, or not visible. Leaves usually deciduous with scape, withering from tip at anthesis, 2, basally sheathing, sheaths not extending much above soil surface; blade solid, flat, falcate, 8–18 cm × 3–5 mm, margins entire. Scape usually forming abcission layer and deciduous with leaves after seeds mature, frequently breaking at this level after pressing, solitary, erect, solid, flattened, winged distally, wing margins commonly minutely serrulate proximal to umbel, 3–8 cm × 1–4 mm. Umbel persistent, erect, compact, 10–35-flowered, hemispheric, bulbils unknown; spathe bracts persistent, 2, 8–10-veined, ovate, ± equal, apex acuminate. Flowers conic to campanulate, 8–11 mm; tepals erect, pink, usually with darker pink midveins, lanceolate to elliptic, ± equal, becoming membranous and rigid in fruit, outer margins entire, inner margins usually minutely denticulate distally, apex obtuse, margins becoming ± involute, appearing acuminate in age; stamens included; anthers yellow to light purple; pollen yellow; ovary crested; processes 3, central, 2-lobed, minute, margins entire; style linear, equaling stamens; stigma capitate, scarcely thickened, unlobed; pedicel 5–16 mm. Seed coat shining; cells smooth. 2n = 14.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) -
Root system rhizome
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway c3

Environment

Light 7-9
Soil humidity 1-5
Soil texture 3-4
Soil acidity -
Soil nutriment -
Hardiness (USDA) -

Usage

Uses -
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Mode -
Germination duration (days) 30 - 365
Germination temperacture (C°) 10
Germination luminosity light
Germination treatment stratification
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Allium siskiyouense unspecified picture

Distribution

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

Identifiers

LSID urn:lsid:ipni.org:names:8882-2
WFO ID wfo-0000757378
COL ID 668WQ
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Allium siskiyouense Allium falcifolium var. demissum