Delphinium brachycentrum |
Delphinium carolinianum |
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arctic larkspur, northern larkspur |
Carolina larkspur |
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Stems | 20-50(-80) cm; base often reddish, pubescent. |
(20-)40-90(-150) cm; base reddish or not, ± pubescent. |
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Leaves | blade round to pentagonal, 1.5-6 × 3-11 cm, puberulent; ultimate lobes 5-15, width 1-7(-15) mm. |
blade round to pentagonal, 1-8 × 2-12 cm, pubescence variable; ultimate lobes 3-29, width 2-10 mm (basal), 1-7 mm (cauline). |
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Inflorescences | 5-18-flowered; pedicel 1-4.5 cm, pubescent; bracteoles 2-7 mm from flowers, blue, linear, 5-8 mm, puberulent. |
(3-)8-27(-94)-flowered; pedicel (0.4-)0.7-1.8(-5.7) cm, nearly glabrous to glandular; bracteoles 1-3.5(-6) mm from flowers, green or blue, linear, 2-7 mm, pubescence nearly glabrous to glandular. |
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Flowers | 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. |
sepals purple to blue to white, nearly glabrous, lateral sepals spreading, (7-)9-14(-17) × (3-)3.5-6(-8) mm, spurs ± upcurved, ascending 20-90° above vertical, (9-)11-17(-19) mm; lower petal blades ± covering stamens, 5-7 mm, cleft 2-4 mm; hairs centered, densest near base of cleft, white, sometimes blue or yellow. |
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Fruits | 14-17 mm, 3.5-4 times longer than wide, pubescent. |
(10-)12.5-18.5(-27) mm, 4-4.5 times longer than wide, glabrous to puberulent. |
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Seeds | wing-margined; seed coat cells ± elongate, surfaces roughened. |
seed coat cells with surfaces pustulate or smooth. |
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Delphinium brachycentrum |
Delphinium carolinianum |
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Phenology | Flowering summer. | |||||||||||||
Habitat | Well-drained tundra slopes | |||||||||||||
Elevation | 0-1600 m (0-5200 ft) | |||||||||||||
Distribution |
AK; YT; e Asia |
AL; AR; CO; FL; GA; IA; IL; KS; KY; LA; MN; MO; MS; NC; ND; NE; OK; SC; SD; TN; TX; WI; MB; Mexico
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Discussion | Hybrids with Delphinium glaucum are known as D. ×nutans A. Nelson. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Subspecies 4 (4 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 3. | FNA vol. 3. | ||||||||||||
Parent taxa | Ranunculaceae > Delphinium > sect. Diedropetala > subsect. Exaltata | Ranunculaceae > Delphinium > sect. Diedropetala > subsect. Virescens | ||||||||||||
Sibling taxa | ||||||||||||||
Subordinate taxa | ||||||||||||||
Synonyms | D. chamissonis | |||||||||||||
Name authority | Ledebour: Fl. Ross. 1: 60. (1841) | Walter: Fl. Carol., 155. (1788) | ||||||||||||
Web links |