Delphinium umbraculorum |
Delphinium scopulorum |
|
---|---|---|
umbrella larkspur |
Rocky Mountain larkspur |
|
Stems | 40-70(-90) cm; base often reddish, glabrous or puberulent. |
50-120 cm; base often reddish, puberulent, midstems glabrous to subglabrous. |
Leaves | 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). |
blade round to pentagonal, 1.5-10 × 2-16 cm, nearly glabrous; ultimate lobes 5-19, width 5-30 mm (basal), 1-10 mm (cauline). |
Inflorescences | (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. |
10-30-flowered, open, cylindric; pedicel ascending to spreading, 1-3(-4.5) cm, puberulent; bracteoles 2-7 mm from flowers, green, linear, 2-4 mm, puberulent. |
Flowers | 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. |
sepals bright dark blue, nearly glabrous, lateral sepals forward pointing, 12-15 × 4-6 mm, spurs gently decurved, slightly ascending, 15-20 mm; lower petal blades ± covering stamens, 5-8 mm, clefts 1-3 mm; hairs sparse, centered, mostly below junction of blade and claw, white. |
Fruits | 9-16(-19) mm, 2.5-3(-4) times longer than wide, puberulent. |
16-20 mm, 4-4.5 times longer than wide, nearly glabrous. |
Seeds | seed coat cells brick-shaped, cell margins straight, surfaces smooth. |
wing-margined; seed coat cells with margins straight, cell surfaces ± roughened. |
2n | = 16. |
= 16. |
Delphinium umbraculorum |
Delphinium scopulorum |
|
Phenology | Flowering late spring–early summer. | Flowering late summer–early autumn. |
Habitat | Slopes in oak forests | Riparian forests and open woodlands |
Elevation | 400-1600 m (1300-5200 ft) | 1700-2600 m (5600-8500 ft) |
Distribution |
CA
|
AZ; NM; Mexico (Sonora) |
Discussion | 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.) |
Hybrids are known with Delphinium andesicola. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 3. | FNA vol. 3. |
Parent taxa | Ranunculaceae > Delphinium > sect. Diedropetala > subsect. Subscaposa | Ranunculaceae > Delphinium > sect. Diedropetala > subsect. Wislizenana |
Sibling taxa | ||
Synonyms | D. macrophyllum | |
Name authority | H. F. Lewis & Epling: Brittonia 8: 19. (1954) | A. Gray: Smithsonian Contr. Knowl. 5(6): 9. (1853) |
Web links |