Delphinium purpusii |
Delphinium brachycentrum |
|
---|---|---|
Kern County larkspur, Purpus' larkspur, rose-color larkspur, rose-flower larkspur |
arctic larkspur, northern larkspur |
|
Stems | (30-)50-80(-120) cm; base reddish or not, nearly glabrous. |
20-50(-80) cm; base often reddish, pubescent. |
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 to pentagonal, 1.5-6 × 3-11 cm, puberulent; ultimate lobes 5-15, width 1-7(-15) mm. |
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. |
5-18-flowered; pedicel 1-4.5 cm, pubescent; bracteoles 2-7 mm from flowers, blue, linear, 5-8 mm, puberulent. |
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, 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 | (11-)18-29 mm, 4-4.5 times longer than wide, glabrous. |
14-17 mm, 3.5-4 times longer than wide, pubescent. |
Seeds | seed coats with small wavy ridges, cells brick-shaped, cell margins undulate, surfaces smooth. |
wing-margined; seed coat cells ± elongate, surfaces roughened. |
2n | = 16. |
|
Delphinium purpusii |
Delphinium brachycentrum |
|
Phenology | Flowering spring. | Flowering summer. |
Habitat | Talus, cliffs, on and near large boulders | Well-drained tundra slopes |
Elevation | 300-1300 m (1000-4300 ft) | 0-1600 m (0-5200 ft) |
Distribution |
CA
|
AK; YT; e Asia |
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.) |
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. Subscaposa | Ranunculaceae > Delphinium > sect. Diedropetala > subsect. Exaltata |
Sibling taxa | ||
Synonyms | D. chamissonis | |
Name authority | Brandegee: Bot. Gaz. 27: 444. (1899) | Ledebour: Fl. Ross. 1: 60. (1841) |
Web links |