darkred onion, dark red onion, red onion
Dale W. McNeal Jr. & T. D. Jacobsen in Flora of North America (vol. 26)
Bulbs 1-3, not clustered on primary rhizome, with 0-2 stalked basal bulbels, ovoid to globose, 1-1.6 × 0.8-1.4 cm; outer coats enclosing 1 or more bulbs, brown, membranous, lacking cellular reticulation or cells arranged in only 2-3 rows distal to roots, ± quadrate, without fibers; inner coats pink or white, cells obscure, quadrate. Leaves persistent, 1, basally sheathing, sheath not extending much above soil level; blade solid, terete, 8-22 cm × 1-2.5 mm. Scape persistent, solitary, erect, solid, terete, 5-17 cm × 1-3 mm. Umbel persistent, erect, ± compact, 5-50-flowered, hemispheric to globose, bulbils unknown; spathe bracts persistent, (2-)3, 3-6-veined, ovate to lanceolate, ± equal, apex acuminate. Flowers campanulate, 8-12 mm; tepals erect, pale pink to deep reddish purple, rarely white, lanceolate to ovate, ± equal or inner longer and narrower than outer, becoming rigid and ± keeled in fruit, margins entire, apex acute to acuminate; stamens included; anthers purple; pollen white or light yellow; ovary crested; processes 6, prominent, ± triangular, margins entire to notched or shallowly toothed; style linear, equaling stamens; stigma obscurely capitate, scarcely thickened, unlobed; pedicel 10-22 mm. Seed coat dull or shining; cells minutely roughened.
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