Allium constrictum |
Allium runyonii |
|
---|---|---|
Grand Coulee onion |
Runyon's onion |
|
Bulbs | 1–5+, not clustered on stout, primary rhizome, ovoid, 1–1.5 × 0.8–1.4 cm; outer coats enclosing 1 or more bulbs, brownish, membranous, lacking cellular reticulation or cells arranged in only 2–3 rows distal to roots, ± quadrate, without fibers; inner coats white, cells obscure, 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 | usually persistent, green at anthesis, 2, basally sheathing, sheaths not extending much above soil surface; blade solid, flat, broadly channeled, falcate, 10–35 cm × 1–3(–5) mm, margins entire. |
green at anthesis, persistent, 3–6, basally sheathing; blade solid, flat, channeled, 10–40 cm × 1–4 mm, margins entire. |
Scape | persistent, solitary, erect, solid, terete, enlarged apically but distinctly constricted just proximal to inflorescence, 15–20 cm × 1.5–4 mm. |
persistent, often 2 or more successively produced from single bulb, erect, ± terete, 10–45 cm × 1–4 mm. |
Umbel | persistent, erect, compact, 15–30-flowered, hemispheric to globose, bulbils unknown; spathe bracts persistent, 3, 5–7-veined, 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 | ± stellate, 7–8 mm; tepals spreading, light pink to rose with prominent green or reddish midribs, narrowly lanceolate, ± equal, becoming papery in fruit, margins entire, apex acuminate; stamens exserted; anthers blue-gray; pollen light blue to gray; ovary crested; processes 6, 2 per lobe, low, rounded, margins entire; style exserted, linear; stigma capitate, unlobed; pedicel 10–20 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 shining; cells smooth. |
coat shining;, cells smooth. |
2n | = 14. |
= 14. |
Allium constrictum |
Allium runyonii |
|
Phenology | Flowering May–Jul. | Flowering Mar–Apr. |
Habitat | Shallow, lithosolic soils, often dry and sandy | Sandy soils, Rio Grande plains |
Elevation | 300–500 m (1000–1600 ft) | 10–200 m (0–700 ft) |
Distribution |
WA
|
Tex Allium runyonii is known only from extreme southern Texas |
Discussion | Of conservation concern. Allium constrictum is known only from Douglas, Grant, and Lincoln counties. (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. | FNA vol. 26, p. 241. |
Parent taxa | Liliaceae > Allium | Liliaceae > Allium |
Sibling taxa | ||
Synonyms | A. douglasii var. constrictum | |
Name authority | (Ownbey & Mingrone) P. M. Peterson: Syst. Bot. 13: 211. (1988) | Ownbey: Res. Stud. State Coll. Wash. 18: 198, fig. 4. (1951) |
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