Allium dichlamydeum |
Allium lacunosum |
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coast onion, coastal onion |
pitted onion |
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Bulbs | 1–3, increase bulbs absent or ± equaling parent bulbs, never appearing as basal cluster, not clustered on stout primary rhizome, ovoid to ± globose, 10–15 mm; outer coats enclosing 1 or more bulbs, brown, prominently cellular-reticulate, membranous, cells arranged in ± vertical rows, forming distinct herringbone pattern, transversely elongate, V-shaped, without fibers; inner coats white, cells obscure, arranged in vertical rows, forming distinct herringbone pattern, transversely elongate, V-shaped. |
1–3(–5), not clustered on stout primary rhizome, ovoid, 1–2 × 1–2 cm; outer coats enclosing 1 or more bulbs, brown, prominently cellular-reticulate, membranous, accumulating and investing bulb with thick cover, cells square, polygonal, or ± transversely elongate, walls thick, sinuous, without fibers; inner coats white to light brown, cells ± obscure, quadrate. |
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Leaves | persistent, withering from tip by anthesis, 3–6, basally sheathing, sheaths not extending much above soil surface; blade solid, subterete or ± channeled, arcuate to ± tortuous, 7–25 cm × 1–3 mm, margins entire. |
persistent, withering from tip at anthesis, 2–3, basally sheathing, sheaths not extending much above soil surface; blade solid, flattened, subterete or ± channeled and carinate, ± falcate, 10–30 cm × 0.5–3 mm, margins entire. |
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Scape | persistent, solitary, erect, solid, terete, 10–30 cm × 2–3 mm. |
persistent, solitary, erect, solid, terete, 10–35 cm × 1–4 mm. |
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Umbel | persistent, erect, compact, 5–30-flowered, conic to hemispheric, bulbils unknown; spathe bracts persistent, 2, 4–6-veined, broadly ovate, ± equal, apex abruptly acuminate. |
persistent, erect, compact or loose, 5–45-flowered, bulbils unknown, umbel shattering after seeds mature, each flower deciduous with its pedicel; spathe bracts persistent, 2–3, 4–6-veined, lance-ovate to ovate, ± equal, apex obtuse or acuminate. |
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Flowers | campanulate, 9–12 mm; tepals ± erect, deep reddish purple, ovate, unequal, inner shorter and narrower than outer, becoming rigid and ± carinate in fruit, margins entire or inner minutely denticulate, apex acute to obtuse, spreading to recurved at tips; stamens included; anthers yellow; pollen yellow; ovary crested; processes 3, central, 2-lobed, minute, margins entire; style linear, equaling stamens; stigma capitate, scarcely thickened, unlobed or minutely 3-lobed; pedicel 5–20 mm. |
campanulate, 4–9 mm; tepals erect or spreading from base, white to deep pink with darker midveins, lance-ovate to ovate, ± equal, margins entire, apex obtuse, acute, or short-acuminate; stamens included; anthers yellow; pollen yellow; ovary 3-grooved with ridge on either side of each groove, ridges prolonged into crest, ridges and crest densely covered with minute, rounded papillae; processes 3, central, 2-lobed, minute; style linear, equaling stamens; stigma capitate, scarcely thickened, obscurely 3-lobed; pedicel 4–30 mm. |
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Seed | coat dull or shining; cells minutely roughened. |
coat dull or shining; cells minutely roughened. |
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2n | = 14. |
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Allium dichlamydeum |
Allium lacunosum |
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Phenology | Flowering May–Jul. | |||||||||||||
Habitat | Dry, clay soils on or near sea cliffs | |||||||||||||
Elevation | 10–50 m (0–200 ft) | |||||||||||||
Distribution |
CA
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CA
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Discussion | Varieties 4 (4 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 26, p. 264. | FNA vol. 26, p. 260. | ||||||||||||
Parent taxa | Liliaceae > Allium | Liliaceae > Allium | ||||||||||||
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Subordinate taxa | ||||||||||||||
Name authority | Greene: Pittonia 1: 166. (1888) | S. Watson: Proc. Amer. Acad. Arts 14: 231. (1879) | ||||||||||||
Web links |