Delphinium exaltatum |
Delphinium ramosum |
|
---|---|---|
tall larkspur |
mountain larkspur |
|
Stems | 70-200 cm; base reddish, nearly glabrous. |
(45-)70-100 cm; base sometimes reddish, puberulent. |
Leaves | blade pentagonal, 2-7 × 3-9 cm, puberulent; ultimate lobes 3-7, width 5-25 mm; midcauline leaf lobes less than 3 times longer than wide. |
blade round to pentagonal, 2-8 × 4-14 cm, nearly glabrous; ultimate lobes 5-21, width 1-5 mm; midcauline leaf lobes more than 3 times longer than wide. |
Inflorescences | 8-30-flowered; pedicel 0.5-2 cm, puberulent; bracteoles 2-4 mm from flowers, green, linear, 2-4 mm, puberulent. |
(10-)15-40(-120)-flowered; pedicel 1-2.5(-4) cm, puberulent; bracteoles 1-3 mm from flowers, green, sometimes margins white, linear or lanceolate, 3-5(-8) mm, puberulent. |
Flowers | sepals whitish to pale lavender or purple, puberulent, lateral sepals forward pointing, 9-11 × 4-6 mm, spurs straight, as much as 45° above or below horizontal, 9-12 mm; lower petal blades ± covering stamens, 3-5 mm, clefts 1-2 mm; hairs centered, mostly near base of cleft, white. |
sepals bright dark blue, apex rounded, puberulent, lateral sepals forward pointing to spreading, 11-13 × 4-6 mm, spurs straight, ascending ca. 30° above horizontal, 9-13 mm; lower petal blades ± covering stamens, 5-7 mm, clefts 2-3 mm; hairs centered above base of cleft, white. |
Fruits | 7-12 mm, 2-2.5 times longer than wide, ± puberulent. |
11-17 mm, 3-4 times longer than wide, puberulent. |
Seeds | ± wing-margined; seed coat cells elongate, surfaces smooth. |
wing-margined; seed coat cells narrow, short, surfaces roughened. |
2n | = 16. |
|
Delphinium exaltatum |
Delphinium ramosum |
|
Phenology | Flowering summer. | Flowering summer. |
Habitat | Rocky slopes in open deciduous woods and barrens, mainly on calcareous substrates, also shale and mafic and ultramafic rocks | Meadows, aspen woodlands, Artemisia scrub |
Elevation | 150-2000 m (500-6600 ft) | 2100-3200(-3400) m (6900-10500(-11200) ft) |
Distribution |
AL; KY; MD; MO; NC; OH; PA; TN; VA; WV
|
CO; NM
|
Discussion | Delphinium ramosum hybridizes with D. barbeyi and D. glaucum. (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. Exaltata |
Sibling taxa | ||
Name authority | Aiton: Hort. Kew. 2: 244. (1789) | Rydberg: Bull. Torrey Bot. Club 28: 276. (1901) |
Web links |