Delphinium carolinianum |
Delphinium carolinianum subsp. virescens |
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Carolina larkspur |
Carolina larkspur, Penard's larkspur, plains larkspur, white larkspur |
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Roots | without elongate central axis; fascicles 2-8, ± horizontal. |
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Stems | (20-)40-90(-150) cm; base reddish or not, ± pubescent. |
50-80 cm. |
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Leaves | blade round to pentagonal, 1-8 × 2-12 cm, pubescence variable; ultimate lobes 3-29, width 2-10 mm (basal), 1-7 mm (cauline). |
blade with 5 or more major divisions; ultimate lobes of midcauline leaf blades 5-15, width 2-6 mm. |
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Inflorescences | (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 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. |
sepals white to very pale blue. |
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Fruits | (10-)12.5-18.5(-27) mm, 4-4.5 times longer than wide, glabrous to puberulent. |
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Seeds | seed coat cells with surfaces pustulate or smooth. |
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2n | = 16. |
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Delphinium carolinianum |
Delphinium carolinianum subsp. virescens |
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Phenology | Flowering late winter–early summer. | |||||||||||||
Habitat | Prairies, sandy, loamy, or clay soils | |||||||||||||
Elevation | 250-2000 m (800-6600 ft) | |||||||||||||
Distribution |
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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CO; IA; KS; MN; MO; ND; NE; OK; SD; TX; WI; MB |
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Discussion | Subspecies 4 (4 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Delphinium carolinianum subsp. virescens is known to hybridize with D. madrense and with D. wootonii. (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. Virescens | Ranunculaceae > Delphinium > sect. Diedropetala > subsect. Virescens > Delphinium carolinianum | ||||||||||||
Sibling taxa | ||||||||||||||
Subordinate taxa | ||||||||||||||
Synonyms | D. virescens, D. virescens var. macroseratilis, D. virescens var. penardii | |||||||||||||
Name authority | Walter: Fl. Carol., 155. (1788) | (Nuttall) R. E. Brooks: Phytologia 60: 8. (1982) | ||||||||||||
Web links |