Allium parvum |
Allium macrum |
|
---|---|---|
dwarf onion, small onion |
rock onion |
|
Bulbs | 1–5+, not clustered on stout primary rhizome, rhizomes absent, renewal bulbs formed within coats of parent bulb, ovoid to ± globose, 1–2 × 0.7–2 cm; outer coats enclosing 1 or more bulbs, gray to grayish brown, membranous, lacking cellular reticulation or cells arranged in only 2–3 rows distal to roots, ± quadrate, without fibers; inner coats white or pinkish, cells obscure, ± quadrate. |
1–3, not clustered on stout, primary rhizome, globose to ovate, 0.6–2 × 0.5–1.5 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, lacking cellular reticulation. |
Leaves | usually deciduous with scape, withering from tip at anthesis, 2, basally sheathing, sheaths not extending much above soil surface; blade solid, flat, ± falcate, 8–15 cm × 2–8 mm, margins entire. |
usually persistent, withering from tip at anthesis, 2, basally sheathing, sheaths not extending much above soil surface; blade solid, flat or channeled, ± falcate, 12–38 cm × 2–3 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, flattened, frequently ± winged distally, or, in smaller specimens, ± terete, 3–12 cm × 0.5–2 mm. |
persistent, solitary, erect, solid, ± terete, not expanded proximal to inflorescence, 9–32 cm × 0.5–4 mm. |
Umbel | persistent, erect, compact, 5–30-flowered, hemispheric to conic, bulbils unknown; spathe bracts persistent, 2, 12–14-veined, ovate, ± equal, apex acute to acuminate. |
persistent, erect, loose, 10–20-flowered, globose, bulbils unknown; spathe bracts persistent, 2, 3–7-veined, lanceolate to lance-ovate, ± equal, apex abruptly acute. |
Flowers | narrowly campanulate, 6–9 mm; tepals erect, ± spreading toward tips, white or tinged with pink, with broad, dark, reddish purple or brown midvein, oblong to elliptic, unequal, outer longer, wider than inner, becoming papery and investing capsule, not carinate in fruit, margins entire, apex obtuse to ± acute; stamens included; anthers purple or yellow; pollen yellow; ovary obscurely crested; processes 3, central, low, rounded, margins entire; style linear, ± equaling tepals; stigma capitate, scarcely thickened, unlobed or obscurely 3-lobed; pedicel 3–12 mm. |
campanulate, 5–7 mm; tepals spreading, white or pinkish with prominent red midveins, narrowly lanceolate, ± equal, becoming papery in fruit, margins entire, apex acuminate; stamens equaling tepals or exserted; anthers yellow; pollen yellow; ovary crested; processes 3, thick, obtuse, margins entire; style linear, equaling stamens; stigma capitate, scarcely thickened, unlobed; pedicel 5–20 mm. |
Seed | coat dull; cells smooth. |
coat dull; cells ± smooth. |
2n | = 14. |
= 14. |
Allium parvum |
Allium macrum |
|
Phenology | Flowering late Apr–Jun. | Flowering Apr–May. |
Habitat | Rocky, clay slopes and talus | Barren, gravelly soils |
Elevation | 1200–2800 m (3900–9200 ft) | 100–1400 m (300–4600 ft) |
Distribution |
CA; ID; NV; OR; UT
|
OR; WA
|
Source | FNA vol. 26. | FNA vol. 26, p. 267. |
Parent taxa | Liliaceae > Allium | Liliaceae > Allium |
Sibling taxa | ||
Synonyms | A. modocense, A. pleianthum var. particolor, A. tribracteatum var. andersonii, A. tribracteatum var. parvum | A. equicaeleste |
Name authority | Kellogg: Proc. Calif. Acad. Sci. 3: 54, fig. 13. (1863) | S. Watson: Proc. Amer. Acad. Arts 14: 233. (1879) |
Web links |