Allium scilloides Douglas ex S.Watson

Fragile onion (en)

Species

Angiosperms > Asparagales > Amaryllidaceae > Allium

Characteristics

Bulbs 1–5, not clustered on stout, primary rhizome, increase bulbs ± equaling parent bulbs, never appearing as basal cluster, rhizomes absent, globose to ovoid, 1–2 cm × 8–20 mm; outer coats enclosing renewal bulbs, reddish or brownish, membranous, lacking cellular reticulation or cells arranged in only 2–3 rows distal to roots, ± quadrate, without fibers; inner coats white or light brown, cells absent or obscure and ± quadrate. Leaves deciduous with scape after seeds mature, 2, basally sheathing, sheaths not extending much above soil surface; blade solid, flat, falcate, 6–15 cm × 2–4 mm, margins entire or obscurely papillose. Scape usually forming abcission layer and deciduous with leaves after seeds mature, frequently breaking at this level after pressing, solitary, erect, solid, strongly flattened, 2-edged or winged distally, wings obscurely papillose, 4–8 cm × 1–3 mm. Umbel decisuous with scape, erect, compact, 5–12-flowered, hemispheric, bulbils unknown; spathe bracts persistent, 2–3, 3-veined, broadly ovate, ± equal, apex acute. Flowers campanulate, 6–8 mm; tepals erect, white or pinkish with green midribs, becoming reddish purple, broadly elliptic-oblong, ± equal, becoming rigid, papery and ± connivent over fruit, margins entire, apex obtuse, not involute at tip; stamens included; anthers purple; pollen white to gray; ovary crestless or obscurely crested; processes 3, central, rounded, margins entire; style linear, equaling stamens; stigma capitate, unlobed or minutely 3-lobed; pedicel 2–10.5(–18.5 in fruit) mm. Seed coat dull; 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 -

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 scilloides unspecified picture

Distribution

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

Identifiers

LSID urn:lsid:ipni.org:names:528829-1
WFO ID wfo-0000757302
COL ID 6697G
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Allium scilloides Allium fragile