Allium scilloides |
Allium runyonii |
|
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fragile onion, scilla-like onion |
Runyon's onion |
|
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. |
1–3, bearing cluster of short-stalked, basal bulbels, ovoid, 1.2–2 × 1.2–2 cm; outer coats enclosing 1 or more bulbs, brownish, reticulate, cells very coarse-meshed, open, fibrous; inner coats whitish, cells contorted, walls very sinuous. |
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. |
green at anthesis, persistent, 3–6, basally sheathing; blade solid, flat, channeled, 10–40 cm × 1–4 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, strongly flattened, 2-edged or winged distally, wings obscurely papillose, 4–8 cm × 1–3 mm. |
persistent, often 2 or more successively produced from single bulb, erect, ± terete, 10–45 cm × 1–4 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. |
persistent, erect, loose, usually 10–25-flowered, hemispheric-globose, bulbils unknown; spathe bracts persistent, usually 3, 3–7-veined, ovate, ± equal, apex acuminate. |
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. |
urceolate, 5–7 mm; tepals erect, white with pinkish midribs, aging to pink, lanceolate, ± equal, becoming callous-keeled and permanently investing capsule, margins entire, apex obtuse or even emarginate to acute; stamens ± equaling tepals; anthers yellow; pollen yellow; ovary crestless; style linear, equaling stamens; stigma capitate, unlobed or obscurelylobed, pedicel 8–28 mm, elongating in fruit. |
Seed | coat dull; cells smooth. |
coat shining;, cells smooth. |
2n | = 14. |
= 14. |
Allium scilloides |
Allium runyonii |
|
Phenology | Flowering Mar–Apr. | Flowering Mar–Apr. |
Habitat | Barren, gravelly soils, arid interior slopes and ridges well back from Columbia River | Sandy soils, Rio Grande plains |
Elevation | 300–1300 m (1000–4300 ft) | 10–200 m (0–700 ft) |
Distribution |
WA
|
Tex Allium runyonii is known only from extreme southern Texas |
Discussion | Of conservation concern. Allium scilloides is known only from east of the Cascades. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Allium runyonii is known only from extreme southern Texas. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 26, p. 275. | FNA vol. 26, p. 241. |
Parent taxa | ||
Sibling taxa | ||
Name authority | Douglas ex S. Watson: Proc. Amer. Acad. Arts 14: 229. (1879) | Ownbey: Res. Stud. State Coll. Wash. 18: 198, fig. 4. (1951) |
Web links |