Delphinium barbeyi |
Delphinium geyeri |
|
---|---|---|
Barbey larkspur, Barbey's larkspur, subalpine larkspur, tall larkspur |
Geyer's larkspur, poisonweed |
|
Stems | 50-150 cm; base green, glabrous. |
(15-)30-60(-80) cm; base usually reddish, puberulent. |
Leaves | blade round to reniform, 4-8 × 7-15 cm, glabrous; ultimate lobes 5-9, width 8-50 mm. |
blade light green, ± round, 1-5 × 1-6 cm, densely pubescent; ultimate lobes 7-20, width 2-5 mm (basal), 2-4 mm (cauline), apex gradually tapering to point; veins obscure. |
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. |
6-30(-60)-flowered, ± open, cylindric; pedicel ascending to spreading, 1-3(-4) cm, puberulent; bracteoles 1-3 mm from flowers, green, lanceolate, 3-6 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 bright blue, puberulent, lateral sepals spreading, 10-18 × 4-8 mm, spurs straight to slightly downcurved, ascending 0-30°, 11-16 mm; lower petal blades slightly elevated, ± exposing stamens, 4-8 mm, clefts 0.5-2 mm; hairs centered, densest on inner lobes near base of cleft, white to light yellow. |
Fruits | 17-22 mm, 2.5-3 times longer than wide, puberulent. |
11-15 mm, 3-3.5 times longer than wide, sparse puberulent. |
Seeds | wing-margined; seed coat cells narrow but short, surfaces pustulate. |
unwinged; seed coat cells with margins straight, surfaces ± roughened. |
2n | = 16. |
= 16. |
Delphinium barbeyi |
Delphinium geyeri |
|
Phenology | Flowering summer. | Flowering late spring–early summer. |
Habitat | Subalpine and alpine sites in wet soils | Grasslands or Artemisia-Cercocarpus scrub |
Elevation | 2500-4100 m (8200-13500 ft) | 1400-3000 m (4600-9800 ft) |
Distribution |
AZ; CO; NM; UT; WY
|
CO; MT; NE; UT; WY
|
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.) |
Apparently closely related to Delphinium stachydeum, D. geyeri is generally smaller, earlier flowering, with more finely dissected leaves and a more eastern geographic distribution. (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. Wislizenana |
Sibling taxa | ||
Synonyms | D. exaltatum var. (e) barbeyi, D. occidentale var. barbeyi | |
Name authority | (Huth) Huth: Bull. Herb. Boissier 1: 335. (1893) | Greene: Erythea 2: 189. (1894) |
Web links |