Delphinium recurvatum |
Delphinium glareosum |
|
---|---|---|
Byron larkspur, recurved larkspur, valley larkspur |
Olympic larkspur, Olympic Mountain larkspur, rockslide larkspur |
|
Stems | (18-)30-50(-85) cm; base reddish, glabrous. |
20-40 cm; base reddish or not, glabrous, glaucous. |
Leaves | blade round to pentagonal, 1-4 × 1.5-6 cm, nearly glabrous; ultimate lobes 3-11, width 3-15 mm (basal), 1-10 mm (cauline). |
blade round, 2-4 × 3-7 cm, not succulent, glabrous; ultimate lobes 7-15, width 3-10 mm (basal), 2-7 mm (cauline). |
Inflorescences | (8-)10-25(-47)-flowered, narrowly pyramidal; pedicel ± spreading, (0.5-)1.5-4(-6) cm, nearly glabrous; bracteoles 3-8(-18) mm from flowers, green, sometimes margins white, lanceolate to linear, 3-5(-8) mm, nearly glabrous. |
5-12-flowered; pedicel 1-5(-10) cm, nearly glabrous to glandular-puberulent; bracteoles 2-10(-20) mm from flowers, green, linear, 3-8 mm, puberulent. |
Flowers | sepals light to sky blue (becoming bluer upon drying), puberulent, lateral sepals reflexed, 11-16 × 5-7(-9) mm, spurs straight to gently upcurved, ascending 0-30° above horizontal, 10-15(-18) mm; lower petal blades elevated, ± exposing stamens, 5-8 mm, clefts 0.5-2.5 mm; hairs mostly centered on inner lobes near base of cleft, white. |
sepals dark blue, nearly glabrous, lateral sepals spreading, 14-22 × 6-10 mm, spurs ± straight, orientation varies from 30° above to 30° below horizontal, 16-20 mm; lower petal blades slightly elevated, ± covering stamens, 6-9 mm, clefts 2-4 mm; hairs local, densest on inner lobes near base of cleft, white to light yellow. |
Fruits | 8-21 mm, 2.2-3 times longer than wide, puberulent. |
12-17 mm, 2.5-3 times longer than wide, glabrous. |
Seeds | seed coat cells brick-shaped, cell margins undulate, surfaces roughened. |
± wing-margined; seed coat cells with surfaces smooth. |
2n | = 16. |
|
Delphinium recurvatum |
Delphinium glareosum |
|
Phenology | Flowering spring. | Flowering summer. |
Habitat | Grassland, Atriplex scrub | Steep rocky subalpine to alpine slopes |
Elevation | 30-600 m (100-2000 ft) | 1500-2800 m (4900-9200 ft) |
Distribution |
CA
|
OR; WA; BC
|
Discussion | Of conservation concern. Delphinium recurvatum has a very restricted distribution in the Central (especially San Joaquin) Valley. This species was probably much more common in the past; most of its habitat has been converted into irrigated croplands. Delphinium recurvatum grows in poorly drained, alkaline soils on valley floors. Hybrids are known between Delphinium recurvatum and D. gypsophilum, D. hesperium, D. parryi, and D. variegatum. Delphinium recurvatum is most likely to be confused with D. gypsophilum or D. hesperium subsp. pallescens. Distinguishing features are found in discussions of those taxa. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
See discussion under Delphinium bicolor. (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. Bicoloria |
Sibling taxa | ||
Synonyms | D. hesperium var. recurvatum | D. caprorum |
Name authority | Greene: Pittonia 1: 285. (1889) | Greene: Pittonia 3: 257. (1898) |
Web links |