Allium nevii |
Allium stellatum |
|
---|---|---|
Nevius' garlic, Nevius' onion |
autumn onion, prairie onion |
|
Bulbs | 1–5+, not clustered on stout, primary rhizome, ovoid, 1–2 × 1–2 cm; outer coats enclosing 1 or more bulbs, light brown, membranous, ± reticulate, cells quadrate to polygonal, vertically oblong, without fibers; inner coats white or pink, cells obscure, quadrate. |
1–5+, usually clustered, often short-rhizomatous at base, rhizome not stout or iris-like, ovoid, 2–4 × 1–2.5 cm; outer coats enclosing 1 or more bulbs, grayish or brownish, membranous, fibers parallel, few, or sometimes reticulate, cells obscure, finely meshed; inner coats whitish to pinkish, cells obscure, ± quadrate. |
Leaves | usually persistent, withering from tip at anthesis, 2, basally sheathing, sheaths not extending much above soil surface; blade solid, flat or ± channeled, falcate, 12–25 cm × 2–3 mm, margins entire. |
persistent, green at anthesis, 3–5, basally sheathing, sheaths never extending much above soil level; blade solid, flat, channeled, 14–35 cm × 1–5 mm, margins ± entire. |
Scape | persistent, 1–3, erect, solid, terete or somewhat flattened, 2-edged, not expanded proximal to inflorescence, 15–30 cm × 1–3 mm. |
persistent, solitary, erect, or, if nodding at anthesis, becoming erect, solid, terete or ± 4-angled, particularly distally, 20–50 cm × 1–3.5 mm. |
Umbel | persistent, erect, compact, 10–30-flowered, hemispheric, bulbils unknown; spathe bracts persistent, 2, 5–6-veined, ovate, ± equal, apex acute. |
persistent, nodding, becoming erect, ± loose, 9–40-flowered, hemispheric, bulbils unknown; spathe bracts persistent, 2, 2–4-veined, lanceolate, ± equal, apex acuminate. |
Flowers | campanulate to substellate, 6–8 mm; tepals spreading, rose-colored, lanceolate, ± equal, becoming papery in fruit, margins entire, apex acuminate; stamens ± equaling tepals, or exserted; anthers blue-gray; pollen light blue or gray; ovary distinctly crested; processes 6, 2 per lobe, low, rounded, margins entire; style exserted, linear; stigma capitate, unlobed; pedicel 8–12 mm. |
stellate, 5–8 mm; tepals spreading, deep pink, elliptic-lanceolate, ± equal, withering in fruit, margins entire, apex acute, midribs not thickened; stamens exserted; anthers yellow; pollen yellow; ovary conspicuously crested; processes 6, distinct, flattened, ± triangular, margins entire or toothed; style exserted, linear, ± equaling stamens; stigma capitate, scarcely thickened, unlobed; pedicel 0–20 mm. |
Seed | coat dull; cells smooth. |
coat dull; cells minutely roughened. |
2n | = 14. |
= 14. |
Allium nevii |
Allium stellatum |
|
Phenology | Flowering May–Jul. | Flowering Jul–Oct. |
Habitat | Heavy, rocky soils, wet meadows, or along streams | Often on calcareous soils |
Elevation | 30–1900 m (100–6200 ft) | 300–2200 m (1000–7200 ft) |
Distribution |
OR; WA
|
AR; IA; IL; KS; MI; MN; MO; ND; NE; OK; SD; TN; TX; WI; MB; ON; SK
|
Source | FNA vol. 26, p. 267. | FNA vol. 26. |
Parent taxa | Liliaceae > Allium | Liliaceae > Allium |
Sibling taxa | ||
Synonyms | A. douglasii var. nevii | |
Name authority | S. Watson: Proc. Amer. Acad. Arts 14: 231. (1879) | Ker Gawler: Bot. Mag. 38: plate 1576. (1813) |
Web links |