Allium triquetrum |
Allium kunthii |
|
---|---|---|
three-corner leek, three-cornered leek, white flower onion |
Kunth's onion |
|
Bulbs | 5–20+, not clustered on stout primary rhizome, rhizomes absent, increase bulbs absent or ± equaling parent bulbs, never appearing as basal cluster, ovoid, 1–2 × 1–2 cm; outer coats enclosing renewal bulbs, ± translucent, yellow-brown, obscurely cellular-reticulate, thin, membranous, meshes delicate, cells vertically elongate, contorted, without fibers; inner coats white, cells obscure, quadrate, or not visible. |
1–4+, rhizomes, if present, secondary, inconspicuous, 2 cm or less including renewal bulb, ± thick, terminated by new bulb, parent bulbs disappearing by anthesis except for still-functional roots and bulb coat, not basally clustered, ovoid, 1–2 × 0.8–1.5 cm; outer coats enclosing renewal bulbs or not, grayish or brownish, with or without obscure, delicate, cellular markings, sometimes striate, membranous, cells elongate, in regular vertical rows, without fibers; inner bulb coats whitish or pinkish, cells obscure, ± quadrate or rectangular and vertically elongate. |
Leaves | persistent, green at anthesis, 2–3, basally sheathing, sheaths not extending much above soil surface; blade solid, flat, not falcate, ± carinate, 15–50 cm × 3–15 mm, margins entire. |
persistent, green at anthesis, 2–5, basally sheathing, sheaths not extended much above soil surface; blade solid, flat, channeled, 10–21 cm × 1–3 mm, margins and veins sometimes denticulate. |
Scape | persistent, clustered, 1–4, erect, solid, sharply 3-angled, 10–40 cm × 1–10 mm. |
persistent, solitary, occasionally 2 or more produced successively from single bulb, erect, solid, terete, 15–30 cm × 1–3 mm. |
Umbel | persistent, lax, loose, 3–15-flowered, ± 1-sided, bulbils unknown; spathe bracts persistent, 1–2, 3-veined, narrowly lanceolate, ± equal, apex acute. |
persistent, erect, loose, 5–20-flowered, conic, bulbils unknown; spathe bracts persistent, 2, 3–5-veined, lanceolate, apex acuminate. |
Flowers | becoming pendent, campanulate, 10–18 mm; tepals erect to spreading, white with prominent green midrib, lanceolate, ± equal, becoming membranous in fruit, margins entire, apex acute; stamens included; anthers yellow; pollen yellow; ovary crestless; style linear, ± equaling stamens; stigma capitate, scarcely thickened, unlobed; pedicel 15–25 mm. |
stellate to campanulate, 4–8 mm; tepals ± spreading, white or pale pink (particularly on midribs), lanceolate, ± equal, becoming papery and withering in fruit, margins entire, apex acute to acuminate; stamens included; anthers yellow or purple; pollen yellow; ovary crestless; style linear, equaling stamens; stigma capitate, unlobed; pedicel unequal, 10–20 mm. |
Seed(s) | coat dull; cells minutely roughened. |
coat dull; cells ± smooth. |
2n | = 18. |
= 14. |
Allium triquetrum |
Allium kunthii |
|
Phenology | Flowering Mar–Apr. | Flowering Jul–Sep. |
Habitat | Disturbed sites | Dry, rocky hills and mountains, usually in limestone soils |
Elevation | 0–100 m (0–300 ft) | 700–3000 m (2300–9800 ft) |
Distribution |
CA; sw Europe [Introduced in North America]
|
AZ; NM; TX; Mexico
|
Discussion | Allium triquetrum is a garden escape, introduced from southwestern Europe, and is potentially a noxious weed. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Allium longifolium (Kunth) Sprengel (1825), based on Schoenoprasum longifolium Kunth (1816), may be the same as A. kunthii; the type material is inadequate for definite determination. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 26, p. 257. | FNA vol. 26, p. 257. |
Parent taxa | Liliaceae > Allium | Liliaceae > Allium |
Sibling taxa | ||
Synonyms | A. scaposum, Schoenoprasum lineare | |
Name authority | Linnaeus: Sp. Pl. 1: 300. (1753) | G. Don: Mem. Wern. Nat. Hist. Soc. 6: 82. (1827) |
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