Delphinium barbeyi |
Delphinium umbraculorum |
|
---|---|---|
Barbey larkspur, Barbey's larkspur, subalpine larkspur, tall larkspur |
umbrella larkspur |
|
Stems | 50-150 cm; base green, glabrous. |
40-70(-90) cm; base often reddish, glabrous or puberulent. |
Leaves | blade round to reniform, 4-8 × 7-15 cm, glabrous; ultimate lobes 5-9, width 8-50 mm. |
blade round to pentagonal, 1.5-4 × 2-6 cm, nearly glabrous; ultimate lobes 3-13, width 3-20 mm (basal), 1-8 mm (cauline). |
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-)10-25(-45)-flowered, open, narrowly pyramidal; pedicel 0.5-3(-7) cm, glabrous to puberulent; bracteoles 3-7 mm from flowers, green, linear, 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 dark blue, puberulent, lateral sepals spreading, 9-16 × 4-7 mm, spurs gently upcurved, ascending 30-45° above horizontal, 8-14 mm; lower petal blades elevated, exposing stamens, 3.5-6 mm, clefts 0.5-1.5 mm; hairs densest near junction of blade and claw above base of cleft, centered or on inner lobes, white. |
Fruits | 17-22 mm, 2.5-3 times longer than wide, puberulent. |
9-16(-19) mm, 2.5-3(-4) times longer than wide, puberulent. |
Seeds | wing-margined; seed coat cells narrow but short, surfaces pustulate. |
seed coat cells brick-shaped, cell margins straight, surfaces smooth. |
2n | = 16. |
= 16. |
Delphinium barbeyi |
Delphinium umbraculorum |
|
Phenology | Flowering summer. | Flowering late spring–early summer. |
Habitat | Subalpine and alpine sites in wet soils | Slopes in oak forests |
Elevation | 2500-4100 m (8200-13500 ft) | 400-1600 m (1300-5200 ft) |
Distribution |
AZ; CO; NM; UT; WY
|
CA
|
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.) |
Delphinium umbraculorum is most often confused with D. patens subsp. hepaticoideum; refer to discussion of that taxon for distinguishing features. Hybrids occur with D. parryi and D. patens subsp. montanum. (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. Subscaposa |
Sibling taxa | ||
Synonyms | D. exaltatum var. (e) barbeyi, D. occidentale var. barbeyi | |
Name authority | (Huth) Huth: Bull. Herb. Boissier 1: 335. (1893) | H. F. Lewis & Epling: Brittonia 8: 19. (1954) |
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