Delphinium geraniifolium |
Delphinium brachycentrum |
|
---|---|---|
Clark Valley larkspur, Mogollon larkspur |
arctic larkspur, northern larkspur |
|
Stems | 60-100 cm; base reddish, puberulent, midstems pubescent. |
20-50(-80) cm; base often reddish, pubescent. |
Leaves | 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. |
blade round to pentagonal, 1.5-6 × 3-11 cm, puberulent; ultimate lobes 5-15, width 1-7(-15) mm. |
Inflorescences | 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. |
5-18-flowered; pedicel 1-4.5 cm, pubescent; bracteoles 2-7 mm from flowers, blue, linear, 5-8 mm, puberulent. |
Flowers | 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. |
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 | 13-18 mm, 3-3.5 times longer than wide, puberulent. |
14-17 mm, 3.5-4 times longer than wide, pubescent. |
Seeds | unwinged; seed coat cells with margins straight, surfaces ± roughened. |
wing-margined; seed coat cells ± elongate, surfaces roughened. |
2n | = 16. |
|
Delphinium geraniifolium |
Delphinium brachycentrum |
|
Phenology | Flowering summer. | Flowering summer. |
Habitat | Heavy clay soil, dry meadows in coniferous woods | Well-drained tundra slopes |
Elevation | 1800-3400 m (5900-11200 ft) | 0-1600 m (0-5200 ft) |
Distribution |
AZ; NM
|
AK; YT; e Asia |
Discussion | 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.) |
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. Wislizenana | Ranunculaceae > Delphinium > sect. Diedropetala > subsect. Exaltata |
Sibling taxa | ||
Synonyms | D. tenuisectum subsp. amplibracteatum | D. chamissonis |
Name authority | Rydberg: Bull. Torrey Bot. Club 26: 583. (1899) | Ledebour: Fl. Ross. 1: 60. (1841) |
Web links |