Delphinium umbraculorum |
Delphinium geraniifolium |
|
---|---|---|
umbrella larkspur |
Clark Valley larkspur, Mogollon larkspur |
|
Stems | 40-70(-90) cm; base often reddish, glabrous or puberulent. |
60-100 cm; base reddish, puberulent, midstems pubescent. |
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 dark green, at least adaxially, fan-shaped to reniform, 2-5 × 3-7 cm, pubescent, especially abaxially; ultimate lobes 5-15, width 4-15 mm (basal lobes 5-15 mm), apex abruptly tapered, usually mucronate; veins prominent. |
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. |
20-90-flowered, dense, cylindric; pedicel ascending to spreading, 1-2 cm, puberulent; bracteoles 1-2 mm from flowers, green, linear, 4-6 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 dark blue to purple, puberulent, lateral sepals spreading to slightly forward pointing, 10-14 × 3-5 mm, spurs ascending 20-70°, truncate or downcurved apically, 12-15 mm; lower petal blades slightly elevated, ± exposing stamens, 4-6 mm, clefts 0.5-2 mm; hairs sparse, local below junction of blade and claw, scattered on margins, white. |
Fruits | 9-16(-19) mm, 2.5-3(-4) times longer than wide, puberulent. |
13-18 mm, 3-3.5 times longer than wide, puberulent. |
Seeds | seed coat cells brick-shaped, cell margins straight, surfaces smooth. |
unwinged; seed coat cells with margins straight, surfaces ± roughened. |
2n | = 16. |
= 16. |
Delphinium umbraculorum |
Delphinium geraniifolium |
|
Phenology | Flowering late spring–early summer. | Flowering summer. |
Habitat | Slopes in oak forests | Heavy clay soil, dry meadows in coniferous woods |
Elevation | 400-1600 m (1300-5200 ft) | 1800-3400 m (5900-11200 ft) |
Distribution |
CA
|
AZ; NM
|
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.) |
Delphinium geraniifolium is a more pubescent analog of the closely related D. scopulorum, the former occurring in heavier soils at higher elvation. (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. tenuisectum subsp. amplibracteatum | |
Name authority | H. F. Lewis & Epling: Brittonia 8: 19. (1954) | Rydberg: Bull. Torrey Bot. Club 26: 583. (1899) |
Web links |