Allium brandegeei |
Allium haematochiton |
|
---|---|---|
Brandegee's onion |
red skinned onion, redskin onion |
|
Bulbs | 1–5, not clustered on stout, primary rhizome, ovoid to globose, 0.7–1.5 × 0.6–1.4 cm; outer coats enclosing 1 or more bulbs, brown to grayish brown, membranous, usually distinctly cellular-reticulate, cells isodiametric or ± narrowly hexagonal, transversely elongate, without fibers; inner coats red to purple or white, cells obscure, quadrate to ± transversely elongate. |
2–3+, usually clustered, short-rhizomatous at base, rhizome not stout or iris-like, oblong, 2–3 × 1–1.5 cm; outer coats enclosing single bulb, ± reddish brown, membranous, striations fine, cells narrow, elongate, vertical; inner coats deep red to white, finely striate, cells narrow, vertically elongate. |
Leaves | usually persistent, green at anthesis, 2, basally sheathing, sheaths not extending much above soil surface; blade solid, flat or channeled, ± falcate, 8–27 cm × 1–3 mm, margins entire. |
persistent, green at anthesis, 3–6, basally sheathing, sheaths not extending much above soil level; blade solid, terete, 3-angled, 15–30 cm × 1–4 mm, margins entire. |
Scape | persistent, solitary, erect, solid, terete, 3–10(–20) cm × 1–3 mm. |
persistent, 1–2, clustered, erect, solid, slightly compressed, 10–40 cm × 1–3 mm. |
Umbel | persistent, erect, compact, 8–25-flowered, hemispheric, bulbils unknown; spathe bracts persistent, 2, 7–10-veined, ovate, ± equal, apex acuminate. |
persistent, erect, compact, 10–30-flowered, hemispheric, bulbils unknown; spathe bracts persistent, 2–4, 2–3-veined, ovate-lanceolate, ± equal, apex obtuse. |
Flowers | campanulate, 5–8 mm; tepals erect, white with prominent green to purplish midvein, lanceolate to elliptic, ± equal, becoming involute at tip and rigid in fruit, margins entire, apex obtuse to acuminate; stamens included; anthers yellow; pollen yellow or white; ovary crestless or obscurely crested; processes 3, low, rounded, central, margins entire; style linear, equaling stamens; stigma capitate, scarcely thickened, unlobed; pedicel 5–15 mm. |
campanulate, 6–8 mm; tepals erect, white to rose, with darker midvein, broadly ovate to lance-ovate, ± equal, becoming rigid and permanently investing capsule, margins entire, apex acute; stamens included; anthers white; pollen white to dark gray; ovary crested; processes 6, rounded, short, densely papillose; style linear, equaling stamens; stigma capitate, scarcely thickened, unlobed; pedicel 1–2 cm. |
Seed | coat shining; cells smooth. |
coat dull; cells minutely roughened. |
2n | = 14. |
= 14. |
Allium brandegeei |
Allium haematochiton |
|
Phenology | Flowering late Apr–Jul. | Flowering Mar–May. |
Habitat | Sandy, rocky soil | Dry slopes and ridges of clay or stony soil |
Elevation | 1200–3300 m (3900–10800 ft) | 50–800 m (200–2600 ft) |
Distribution |
CO; ID; MT; NV; OR; UT; WY
|
CA; Mexico (Baja California)
|
Source | FNA vol. 26, p. 266. | FNA vol. 26, p. 246. |
Parent taxa | Liliaceae > Allium | Liliaceae > Allium |
Sibling taxa | ||
Synonyms | A. diehlii, A. minimum, A. tribracteatum var. diehlii | A. marvinii |
Name authority | S. Watson: Proc. Amer. Acad. Arts 17: 380. (1882) | S. Watson: Proc. Amer. Acad. Arts 14: 227. (1879) |
Web links |