Allium constrictum |
Allium gooddingii |
|
---|---|---|
Grand Coulee onion |
Goodding'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, clustered on thick, iris-like rhizome, elongate, 2–3 × 0.5–1 cm; outer coats enclosing single bulb, brownish, membranous, minutely striate, cells in regular vertical rows, elongate, not fibrous-reticulate, fibers persistent, parallel, few, coarse; inner coats whitish or pinkish, minutely striate, cells in vertical rows, elongate. |
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. |
persistent, green at anthesis, 3–6, basally sheathing, sheaths not extending much above soil level; blade solid, flat, 8–25 cm × 4–8 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, solitary, erect, solid, flattened, narrowly winged distally, 34–45 cm × 1–3 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, 18–23-flowered, conic, bulbils unknown; spathe bracts persistent, 2, 3–5-veined, narrowly lanceolate, ± equal, apex acute. |
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. |
campanulate, 8–10 mm; tepals erect, pink, elliptic, ± equal, withering in fruit, margins entire, apex obtuse, midribs not thickened; stamens ± equaling tepals; anthers white or purple; pollen white; ovary crestless; style linear, equaling stamens; stigma capitate, unlobed; pedicel 15–20 mm, elongating in fruit. |
Seed | coat shining; cells smooth. |
coat dull or shining; cells each with minute, central papilla. |
2n | = 14. |
= 14. |
Allium constrictum |
Allium gooddingii |
|
Phenology | Flowering May–Jul. | Flowering Jun–Sep. |
Habitat | Shallow, lithosolic soils, often dry and sandy | Steep, rocky slopes |
Elevation | 300–500 m (1000–1600 ft) | 2400–2900 m (7900–9500 ft) |
Distribution |
WA
|
AZ; NM |
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 gooddingii is known only from the mountains of east-central Arizona and adjacent New Mexico, and the Santa Catalina Mountains of southern Arizona. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 26. | FNA vol. 26, p. 245. |
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. 15: 222. (1947) |
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