Allium passeyi N.H.Holmgren & A.H.Holmgren

Passey's onion (en)

Species

Angiosperms > Asparagales > Amaryllidaceae > Allium

Characteristics

Bulbs 2–3+, not rhizomatous, ovoid, 1–2 × 1.2–2 cm; outer coats enclosing 1 or more bulbs, light brown, reticulate, fibrous; inner coats whitish to light brown, cells vertically elongate and regular or obscure. Leaves persistent, green at anthesis, 2–3, sheathing; blade solid, flat, ± falcate, 10–20 cm × 3–6 mm, margins entire. Scape persistent, solitary, erect, terete or ± winged-angled, mostly 10–20 cm × 1–2.5 mm. Umbel persistent, erect, compact, 8–27-flowered, hemispheric-globose, bulbils unknown; spathe bracts persistent, 2–4, mostly 1-veined, ovate, ± equal, apex acuminate to caudate. Flowers campanulate, 7–9 mm; tepals erect, light pink, narrowly lanceolate to lance-ovate, becoming callous-keeled, persistent and permanently investing capsule, margins entire, apex acuminate, inner shorter and narrower than outer, outer strongly keeled and gibbous at base; stamens included; anthers yellow; pollen yellow; ovary obscurely crested; processes 6, central, ± erect, rounded, minute, to 1 mm, margins entire; style linear, equaling stamens; stigma capitate, scarcely thickened, unlobed; pedicel 10–18 mm. Seed coat shining; cells smooth, each with minute, central papilla.
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 -
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

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 -

Distribution

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

Identifiers

LSID urn:lsid:ipni.org:names:8840-2
WFO ID wfo-0000756974
COL ID 65WVQ
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Allium passeyi