Allium douglasii |
Allium lemmonii |
|
---|---|---|
Douglas' onion |
Lemmon's onion |
|
Bulbs | 1–4, not clustered on stout, primary rhizomes, ovoid, 1.2–3 × 1–2 cm; outer coats enclosing 1 or more bulbs, light brown, membranous, lacking cellular reticulation, or cells arranged in only 2–3 rows distal to roots, ± quadrate, without fibers; inner coats white, sometimes pink, cells obscure, quadrate or linear. |
1–5+, not clustered on stout primary rhizome, ovoid, 1.5–2.2 × 1–2 cm; outer coats enclosing 1 or more bulbs, brown, membranous, ± prominently cellular-reticulate, cells in ± regular vertical rows, narrowly rectangular, transversely elongate, without fibers; inner coats white to light brown, cells ± narrowly rectangular, transversely elongate, or quadrate. |
Leaves | usually persistent, green at anthesis, 2, basally sheathing, sheaths not extending much above soil surface; blade solid, flat, falcate, 9–28 cm × (2–)5–15 mm, margins entire. |
usually deciduous with scape, green or withering only at tip at anthesis, 2, basally sheathing, sheaths not extending much above soil surface; blade solid, flat, falcate, 8–30 cm × 3–5 mm, margins entire. |
Scape | persistent, solitary, erect, solid, terete, not expanded proximal to inflorescence, (10–)20–30(–40) cm × 1–4 mm. |
usually forming abcission layer and deciduous with leaves after seeds mature, frequently breaking at this level after pressing, solitary, erect, solid, flattened, narrowly winged, 15–20 cm × 1–4 mm. |
Umbel | persistent, erect, compact, 25–50-flowered, hemispheric to globose, bulbils unknown; spathe bracts persistent, 3, 4–6-veined, ovate, ± equal, apex acute. |
persistent, erect, compact to ± loose, 10–40-flowered, hemispheric, bulbils unknown; spathe bracts persistent, 2–3, 8–10-veined, broadly lanceolate to ovate, ± equal, apex long-acuminate. |
Flowers | ± stellate, (6–)7–8(–10) mm; tepals spreading, light pink to purple with prominent green midribs, narrowly lanceolate, ± equal, becoming papery in fruit, margins entire, apex acuminate; stamens equaling tepals or exserted; anthers blue-gray; pollen white to light gray; ovary crested; processes 6, 2 per lobe, low, rounded, margins entire; style exserted, linear; stigma capitate, unlobed; pedicel 15–30 mm. |
campanulate, 6–9 mm; tepals erect, pink to whitish, lance-ovate, ± equal, becoming ± rigid in fruit, margins entire, apex acute to acuminate; stamens ± equaling tepals; anthers light purple to yellow; pollen yellow; ovary obscurely crested; processes 6, low, central, 2 per lobe, margins entire; style linear, equaling stamens; stigma capitate, scarcely thickened, unlobed; pedicel 8–16 mm. |
Seed | coat shining; cells smooth. |
coat dull; cells smooth. |
2n | = 14. |
= 14. |
Allium douglasii |
Allium lemmonii |
|
Phenology | Flowering May–Jul. | Flowering May–Jun. |
Habitat | Winter-wet, shallow soils on rock outcrops | Drying, clay soils |
Elevation | 400–1300 m (1300–4300 ft) | 1200–1900 m (3900–6200 ft) |
Distribution |
OR; WA
|
CA; ID; NV; OR; UT
|
Source | FNA vol. 26, p. 267. | FNA vol. 26, p. 270. |
Parent taxa | Liliaceae > Allium | Liliaceae > Allium |
Sibling taxa | ||
Synonyms | A. hendersonii | A. incisum, A. scissum |
Name authority | Hooker: Fl. Bor.-Amer. 2: 184, plate 197. (1838) | S. Watson: Proc. Amer. Acad. Arts 14: 234. (1879) |
Web links |