Allium amplectens |
Allium crispum |
|
---|---|---|
narrow-leaf onion, slim-leaf onion |
crinkled onion |
|
Bulbs | 1–15+, increase bulbs absent or ± equaling parent bulbs, never appearing as basal cluster, not clustered on stout primary rhizome, ovoid to ± globose, 0.6–1.5 × 0.6–1.3 cm; outer coats enclosing 1 or more bulbs, brown, prominently cellular-reticulate, membranous, cells in ± vertical rows, forming irregular herringbone pattern, transversely elongate, V-shaped, without fibers; inner coats usually dark red, sometimes white to pink, cells obscure, quadrate. |
1–3, increase bulbs absent or ± equaling parent bulbs, never appearing as basal cluster, not clustered on stout primary rhizome, ovoid to globose, 0.9–1.5 × 0.9–1.5 cm; outer coats enclosing 1 or more bulbs, brown or gray, prominently cellular-reticulate, membranous, cells arranged in ± vertical rows, forming distinct herringbone pattern, transversely elongate, V-shaped, without fibers; inner coats white, cells obscure, forming distinct herringbone pattern or ± quadrate, transversely elongate, V-shaped. |
Leaves | persistent, withering from tip at anthesis, 2–4, basally sheathing, sheaths not extending much above soil surface; blade solid, subterete or ± channeled, 10–36 cm × 0.5–2 mm, margins entire. |
persistent, withering from tip by anthesis, 2–3, basally sheathing, sheaths not extending much above soil surface; blade solid, subterete or ± channeled, straight to arcuate, 13–30 cm × 1–3 mm, margins entire. |
Scape | persistent, solitary, erect, solid, terete, 15–50 cm × 3–5 mm. |
persistent, solitary, erect, solid, terete, 15–35 cm × 1–3 mm. |
Umbel | shattering after seeds mature, each flower deciduous with its pedicel as a unit, erect, compact, 10–50-flowered, hemispheric, bulbels unknown; spathe bracts persistent, 2–3, 6–13-veined, ovate, ± equal, apex short-acuminate. |
persistent, erect, loose, 10–40-flowered, hemispheric, bulbils unknown; spathe bracts persistent, 2, 4–6-veined, lance-ovate to ovate, ± equal, apex acuminate. |
Flowers | stellate, 5–9 mm; tepals spreading at anthesis, white to pink, lanceolate, ± equal, becoming papery and connivent over capsule, margins entire, apex acute; stamens included; anthers yellow or purple; pollen yellow; ovary crested; processes 6, lateral, ± prominent, ± rectangular, margins entire; style linear, equaling stamens; stigma capitate, scarcely thickened, unlobed; pedicel 4–16 mm. |
campanulate, 8–13 mm; tepals erect, rose-purple, lance-ovate to broadly ovate, unequal, outer longer and wider than inner, becoming rigid and keeled in fruit, margins of outer tepal entire, inner denticulate and distinctly crisped, apex acuminate, recurved-spreading at tips; stamens included; anthers yellow; pollen yellow; ovary crested; processes 3, central, 2-lobed, minute, margins entire; style linear, equaling stamens; stigma capitate, 3-lobed; pedicel 10–35 mm. |
Seed | coat dull; cells minutely roughened. |
coat dull; cells minutely roughened. |
2n | = 14, 21, 28. |
= 14. |
Allium amplectens |
Allium crispum |
|
Phenology | Flowering Apr–Jul. | Flowering late Mar–Jun. |
Habitat | Clay soils, including serpentine, dry slopes, and open plains | Clay soils, including serpentine |
Elevation | 0–1800 m (0–5900 ft) | 100–800 m (300–2600 ft) |
Distribution |
CA; OR; WA; BC
|
CA
|
Discussion | All three chromosome races of Allium amplectens are widespread. The triploids are achiasmatic, causing a breakdown in the first meiotic division. This is followed by a normal second division resulting in pollen dyads that are, presumably, nonfunctional; seeds are produced by apomixis. The diploids and tetraploids produce normal pollen, in tetrads, that appears to be functional. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Allium crispum is known only from the inner south Coast Ranges. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 26, p. 262. | FNA vol. 26. |
Parent taxa | Liliaceae > Allium | Liliaceae > Allium |
Sibling taxa | ||
Synonyms | A. acuminatum var. gracile, A. attenuifolium, A. attenuifolium var. monospermum, A. monospermum, A. occidentale, A. serratum | A. peninsulare var. crispum |
Name authority | Torrey: Pacif. Railr. Rep. 4(5): 148. (1857) | Greene: Pittonia 1: 166. (1888) |
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