Delphinium purpusii |
Delphinium bicolor |
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Kern County larkspur, Purpus' larkspur, rose-color larkspur, rose-flower larkspur |
Flathead larkspur, little larkspur, low larkspur, Montana larkspur |
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Stems | (30-)50-80(-120) cm; base reddish or not, nearly glabrous. |
10-40(-70) cm; base often reddish, glabrous to puberulent. |
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Leaves | blade round, 1.5-6 × 2-10 cm, ± puberulent; ultimate lobes 0-5, width 5-30(-50) mm (basal), 5-20(-40) mm (cauline). |
blade round, 1-4 × 1.5-7 cm, glabrous to puberulent; ultimate lobes 3-19, width 1-8 mm (basal), 1-3 mm (cauline). |
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Inflorescences | (8-)12-20(-32)-flowered, ± cylindric; pedicel ± ascending, (0.5-)1-4(-5) cm, glandular-puberulent; bracteoles 1-6 mm from flowers, green to magenta, linear, 2-4 mm, glandular-puberulent. |
3-12(-22)-flowered; pedicel 1-4(-8) cm, ± puberulent; bracteoles 2-7(-17) mm from flowers, green, sometimes white-margined, lanceolate, 4-6(-8) mm, puberulent. |
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Flowers | sepals magenta to rose, nearly glabrous, lateral sepals reflexed, 10-16 × 3-7 mm, spurs straight, 30-45° above horizontal, (10-)14-19 mm; lower petal blades nearly coplanar with claws, exposing stamens, 3-4 mm, clefts 0.5-1.5 mm; hairs sparse, scattered, white. |
sepals dark blue, puberulent, lateral sepals usually spreading, 16-21 × 6-12 mm, spurs straight to gently decurved, ascending 0-40° above horizontal, 13-23 mm; lower petal blades covering stamens, 7-12 mm, clefts 0.1-3 mm; hairs sparse, short, mostly on inner lobes below junction of blade and claw, white or yellow. |
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Fruits | (11-)18-29 mm, 4-4.5 times longer than wide, glabrous. |
(12-)16-22 mm, 4-4.5 times longer than wide, usually puberulent. |
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Seeds | seed coats with small wavy ridges, cells brick-shaped, cell margins undulate, surfaces smooth. |
often winged; seed coat cells with surfaces ± smooth. |
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2n | = 16. |
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Delphinium purpusii |
Delphinium bicolor |
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Phenology | Flowering spring. | |||||
Habitat | Talus, cliffs, on and near large boulders | |||||
Elevation | 300-1300 m (1000-4300 ft) | |||||
Distribution |
CA
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ID; MT; ND; NE; SD; WY; AB; BC; SK
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Discussion | Of conservation concern. Delphinium purpusii is not likely to be confused with any other Delphinium in North America. Hybrids with Delphinium hansenii subsp. kernense are known to occur. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Subspecies 2 (2 in the flora). Delphinium bicolor is closely related to D. glareosum; it differs in its wider-lobed cauline leaves, shallower petal clefts, and narrower fruits. The Gosiute consider this plant to be poisonous (D. E. Moerman 1986, subspecies not specified). (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. Subscaposa | Ranunculaceae > Delphinium > sect. Diedropetala > subsect. Bicoloria | ||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Name authority | Brandegee: Bot. Gaz. 27: 444. (1899) | Nuttall: J. Acad. Nat. Sci. Philadelphia 7: 10. (1834) | ||||
Web links |