Delphinium purpusii |
Delphinium tricorne |
|
---|---|---|
Kern County larkspur, Purpus' larkspur, rose-color larkspur, rose-flower larkspur |
dwarf larkspur, rock larkspur |
|
Stems | (30-)50-80(-120) cm; base reddish or not, nearly glabrous. |
20-60 cm; base often reddish, nearly glabrous. |
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, 2-8 × 4-12 cm, nearly glabrous; ultimate lobes 3-18, 5 or more extending more than 3/5 distance to petiole, width 2-10 mm (basal), 4-10 mm (cauline), widest at middle or in proximal 1/2. |
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. |
5-15(-30)-flowered, less than 3 times longer than wide; pedicel 1-2.5 cm, puberulent; bracteoles 1-4(-6) mm from flowers, green, linear, 3-5 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 deep bluish purple to pink or white, puberulent, lateral sepals spreading, 11-19 × 4-7 mm, spurs straight, within 30° of horizontal, 13-16 mm; lower petal blades ± covering stamens, blue, except sometimes in white-flowered plants, 6-10 mm, clefts 0.5-2 mm; hairs sparse, mostly centered near junction of blade and claw, white. |
Fruits | (11-)18-29 mm, 4-4.5 times longer than wide, glabrous. |
14-22 mm, 4-4.5 times longer than wide, nearly glabrous. |
Seeds | seed coats with small wavy ridges, cells brick-shaped, cell margins undulate, surfaces smooth. |
unwinged; surface of each seed coat cell with 1-5 small, swollen, elongate, blunt, hairlike structures, barely visible at 20x, otherwise smooth. |
2n | = 16. |
= 16. |
Delphinium purpusii |
Delphinium tricorne |
|
Phenology | Flowering spring. | Flowering spring. |
Habitat | Talus, cliffs, on and near large boulders | Slopes in deciduous forests, thicket edges, moist prairies |
Elevation | 300-1300 m (1000-4300 ft) | 10-1500 m (0-4900 ft) |
Distribution |
CA
|
AL; AR; DC; GA; IA; IL; IN; KS; KY; MD; MO; MS; NC; NE; OH; OK; PA; SC; TN; VA; WV
|
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.) |
Delphinium tricorne is the most commonly encountered larkspur east of the Great Plains. The Cherokee prepared infusions of Delphinium tricorne to ingest for heart problems, although they believed the roots of the plant made cows drunk and killed them (D. E. Moerman 1986). (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. Grumosa |
Sibling taxa | ||
Name authority | Brandegee: Bot. Gaz. 27: 444. (1899) | Michaux: Fl. Bor.-Amer., 314. (1803) |
Web links |