Delphinium xantholeucum |
Delphinium glareosum |
|
---|---|---|
yellow-white larkspur |
Olympic larkspur, Olympic Mountain larkspur, rockslide larkspur |
|
Stems | 40-60(-100) cm; base often reddish, glabrous, ± glaucous. |
20-40 cm; base reddish or not, glabrous, glaucous. |
Leaves | blade round, 2-6 × 4-10 cm, nearly glabrous; ultimate lobes 3-15, width 3-8 mm (basal), 1-5 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 | 10-20(-60)-flowered, narrowly pyramidal; pedicel spreading, yellowish, 1.5-3 cm, ± glandular-puberulent; bracteoles 6-12 mm from flowers, green to light brown, linear to lanceolate, 4-7 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 yellow, glabrous, lateral sepals reflexed, 9-12 × 3-5 mm, spurs straight, ascending ca. 45° above horizontal, 11-15 mm; lower petal blades elevated, exposing stamens, 3-5 mm, clefts 1-2 mm; hairs centered mostly 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 | 15-22 mm, 3-4 times longer than wide, glabrous to glandular-puberulent. |
12-17 mm, 2.5-3 times longer than wide, glabrous. |
Seeds | seed coat cells narrow, short, cell margins straight, surfaces smooth. |
± wing-margined; seed coat cells with surfaces smooth. |
2n | = 16. |
|
Delphinium xantholeucum |
Delphinium glareosum |
|
Phenology | Flowering spring. | Flowering summer. |
Habitat | Slopes in open yellow pine forests, grasslands, sage scrub | Steep rocky subalpine to alpine slopes |
Elevation | 150-600 m (500-2000 ft) | 1500-2800 m (4900-9200 ft) |
Distribution |
WA
|
OR; WA; BC
|
Discussion | Of conservation concern. Delphinium xantholeucum is very local; much of the habitat of this species has been converted to orchards. (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. caprorum | |
Name authority | Piper: Contr. U.S. Natl. Herb. 11: 280. (1906) | Greene: Pittonia 3: 257. (1898) |
Web links |