Delphinium xantholeucum |
Delphinium bakeri |
|
---|---|---|
yellow-white larkspur |
Baker's delphinium, Baker's larkspur |
|
Stems | 40-60(-100) cm; base often reddish, glabrous, ± glaucous. |
(45-)60-85(-100) cm; base reddish, glabrous. |
Leaves | blade round, 2-6 × 4-10 cm, nearly glabrous; ultimate lobes 3-15, width 3-8 mm (basal), 1-5 mm (cauline). |
blade pentagonal to round, 1-6 × 1.5-8 cm, margins crenate, glabrous; ultimate lobes 3-5, width 2-5 mm (basal), 5-30 mm (cauline), widest at middle or in proximal 1/2. |
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. |
8-23-flowered, at least 2 times longer than wide; pedicel 1-6(-9) cm, glandular-puberulent; bracteoles 4-6 mm from flowers, green to blue, lance-linear, 5-8(-13) mm, glabrous to glandular-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 bluish purple, nearly glabrous, lateral sepals spreading, 9-11 × 4-5 mm, spur apex decurved, ± horizontal, 9-13 mm; lower petal blades ± covering stamens, 5-7 mm, clefts 2-3 mm; hairs sparse, mostly near base of cleft, centered or on inner lobes, white. |
Fruits | 15-22 mm, 3-4 times longer than wide, glabrous to glandular-puberulent. |
18-20 mm, 3.5-4 times longer than wide, glabrous. |
Seeds | seed coat cells narrow, short, cell margins straight, surfaces smooth. |
unwinged; seed coats smooth. |
2n | = 16. |
|
Delphinium xantholeucum |
Delphinium bakeri |
|
Phenology | Flowering spring. | Flowering spring. |
Habitat | Slopes in open yellow pine forests, grasslands, sage scrub | Brushlands and coastal chaparral |
Elevation | 150-600 m (500-2000 ft) | 100-300 m (300-1000 ft) |
Distribution |
WA
|
CA |
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.) |
Of conservation concern. Delphinium bakeri is possibly extinct in the wild because of cultivation and sheep grazing in the small area where it grows. It is known from only two localities and has not been collected since 1960. Plants have been grown at Strybing Arboretum, Golden Gate Park, San Francisco. Although their geographic ranges are distinct, D. bakeri is most similar to, and probably closely related to, D. trolliifolium. The former has more rounded incisions on the leaves than the latter, and the pedicel of D. bakeri are consistently glandular. Glandular pedicel appear only occasionally in D. trolliifolium. (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 | Piper: Contr. U.S. Natl. Herb. 11: 280. (1906) | Ewan: Bull. Torrey Bot. Club 69: 144. (1942) |
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