Delphinium barbeyi |
Delphinium brachycentrum |
|
---|---|---|
Barbey larkspur, Barbey's larkspur, subalpine larkspur, tall larkspur |
arctic larkspur, northern larkspur |
|
Stems | 50-150 cm; base green, glabrous. |
20-50(-80) cm; base often reddish, pubescent. |
Leaves | blade round to reniform, 4-8 × 7-15 cm, glabrous; ultimate lobes 5-9, width 8-50 mm. |
blade round to pentagonal, 1.5-6 × 3-11 cm, puberulent; ultimate lobes 5-15, width 1-7(-15) mm. |
Inflorescences | 10-50-flowered; pedicel 0.5-6 cm, glandular-puberulent; bracteoles 1-4(-8) mm from flowers, blue to green, awl-shaped, 5-14 mm, puberulent. |
5-18-flowered; pedicel 1-4.5 cm, pubescent; bracteoles 2-7 mm from flowers, blue, linear, 5-8 mm, puberulent. |
Flowers | sepals dark bluish purple, sparsely puberulent, lateral sepals forward pointing, 13-23 × 5-8 mm, spurs ascending ca. 45°, downcurved apically, 10-18 mm; lower petal blades ± covering stamens, 4-7 mm, clefts 2-3 mm; hairs centered, mostly near base of cleft, sparse elsewhere, white or yellow. |
sepals dark blue, apex rounded, puberulent, lateral sepals forward pointing, 17-24 × 7-9 mm, spurs straight to slightly decurved, ascending 30-60° above horizontal, 15-17 mm; lower petal blades ± covering stamens, 5-7 mm, clefts 0.5-1.5 mm; hairs sparse, local, centered, mostly above base of cleft, white. |
Fruits | 17-22 mm, 2.5-3 times longer than wide, puberulent. |
14-17 mm, 3.5-4 times longer than wide, pubescent. |
Seeds | wing-margined; seed coat cells narrow but short, surfaces pustulate. |
wing-margined; seed coat cells ± elongate, surfaces roughened. |
2n | = 16. |
|
Delphinium barbeyi |
Delphinium brachycentrum |
|
Phenology | Flowering summer. | Flowering summer. |
Habitat | Subalpine and alpine sites in wet soils | Well-drained tundra slopes |
Elevation | 2500-4100 m (8200-13500 ft) | 0-1600 m (0-5200 ft) |
Distribution |
AZ; CO; NM; UT; WY
|
AK; YT; e Asia |
Discussion | Delphinium barbeyi hybridizes extensively with D. glaucum in western Colorado and eastern Utah, where plants appearing to be hybrid [D. ×occidentale (S. Watson) S. Watson] are often far more common than plants of either putative parent. Several other names have been used for these plants, including D. elatum var. occidentale S. Watson, D. abietorum Tidestrom, and D. scopulorum subsp. occidentale (S. Watson) Abrams. Delphinium barbeyi is also known to hybridize with D. ramosum and D. sapellonis. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Hybrids with Delphinium glaucum are known as D. ×nutans A. Nelson. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 3. | FNA vol. 3. |
Parent taxa | Ranunculaceae > Delphinium > sect. Diedropetala > subsect. Exaltata | Ranunculaceae > Delphinium > sect. Diedropetala > subsect. Exaltata |
Sibling taxa | ||
Synonyms | D. exaltatum var. (e) barbeyi, D. occidentale var. barbeyi | D. chamissonis |
Name authority | (Huth) Huth: Bull. Herb. Boissier 1: 335. (1893) | Ledebour: Fl. Ross. 1: 60. (1841) |
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