Delphinium basalticum |
Delphinium patens |
|||||||||
---|---|---|---|---|---|---|---|---|---|---|
basalt larkspur, basaltic larkspur, Columbia Gorge larkspur |
spreading larkspur, spreading or zigzag larkspur, zigzag larkspur |
|||||||||
Stems | 20-50(-65) cm; base often reddish, puberulent. |
(10-)20-50(-90) cm; base reddish, glabrous to puberulent. |
||||||||
Leaves | blade round, 2-6 × 5-9 cm, not succulent, nearly glabrous; ultimate lobes 5-19, width 3-15 mm (basal), 1-12 mm (cauline). |
blade round to pentagonal, 1-5.5 × 2-7.5 cm, nearly glabrous; ultimate lobes 3-9, less often wedge-shaped, 5 or more extending more than 3/5 distance to petiole, width 5-30(-50) mm (basal), 1-15 mm (cauline), widest at middle or in proximal 1/2. |
||||||||
Inflorescences | (2-)6-16(-26)-flowered; pedicel 2-7 cm, nearly glabrous; bracteoles 4-12 mm from flowers, green, linear, 3-7 mm, nearly glabrous. |
4-25(-36)-flowered; pedicel spreading from rachis at usually less than 70°, 1-4(-8) cm, glabrous to glandular; bracteoles 3-12(-23) mm from flowers, blue to green, linear, 3-8(-16) mm, glabrous to glandular. |
||||||||
Flowers | sepals dark blue, nearly glabrous, lateral sepals spreading, 15-21 × 7-10 mm, spur straight to decurved, ascending 30-45° above horizontal, 14-18 mm; lower petal blades slightly elevated, ± exposing stamens, 7-9 mm, cleft 4-5 mm; hairs centered, mostly on inner lobes above base of cleft, yellow to white. |
sepals dark blue, usually retaining color upon drying, glabrous, lateral sepals reflexed, (6-)10-15(-20) × 4-8 mm, spurs straight, ascending ca. 30° above horizontal, 8-18 mm; lower petal blades elevated, exposing stamens, 3-6(-8) mm, clefts 1-3 mm; hairs centered on base of cleft or on inner lobes, scattered, white, rarely yellow. |
||||||||
Fruits | 12-17 mm, 3.5-4 times longer than wide, glabrous. |
12-23 mm, 3.3-3.6 times longer than wide, glabrous or puberulent. |
||||||||
Seeds | ± wing-margined; seed coat cells with surfaces smooth. |
unwinged; seed coats ± pitted, cell surfaces roughened. |
||||||||
Delphinium basalticum |
Delphinium patens |
|||||||||
Phenology | Flowering spring (-early summer). | |||||||||
Habitat | Basaltic cliff faces, n and e slopes at base of cliffs | |||||||||
Elevation | 200-500 m (700-1600 ft) | |||||||||
Distribution |
OR; WA |
CA
|
||||||||
Discussion | Of conservation concern. Hybrids between Delphinium basalticum and D. trolliifolium are known. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Subspecies 3 (3 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
||||||||
Key |
|
|||||||||
Source | FNA vol. 3. | FNA vol. 3. | ||||||||
Parent taxa | Ranunculaceae > Delphinium > sect. Diedropetala > subsect. Bicoloria | Ranunculaceae > Delphinium > sect. Diedropetala > subsect. Grumosa | ||||||||
Sibling taxa | ||||||||||
Subordinate taxa | ||||||||||
Name authority | M. J. Warnock: Phytologia 78: 91. (1995) | Bentham: Pl. Hartw., 296. (1849) | ||||||||
Web links |