Delphinium geraniifolium |
Delphinium bakeri |
|
---|---|---|
Clark Valley larkspur, Mogollon larkspur |
Baker's delphinium, Baker's larkspur |
|
Stems | 60-100 cm; base reddish, puberulent, midstems pubescent. |
(45-)60-85(-100) cm; base reddish, glabrous. |
Leaves | blade dark green, at least adaxially, fan-shaped to reniform, 2-5 × 3-7 cm, pubescent, especially abaxially; ultimate lobes 5-15, width 4-15 mm (basal lobes 5-15 mm), apex abruptly tapered, usually mucronate; veins prominent. |
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 | 20-90-flowered, dense, cylindric; pedicel ascending to spreading, 1-2 cm, puberulent; bracteoles 1-2 mm from flowers, green, linear, 4-6 mm, puberulent. |
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 dark blue to purple, puberulent, lateral sepals spreading to slightly forward pointing, 10-14 × 3-5 mm, spurs ascending 20-70°, truncate or downcurved apically, 12-15 mm; lower petal blades slightly elevated, ± exposing stamens, 4-6 mm, clefts 0.5-2 mm; hairs sparse, local below junction of blade and claw, scattered on margins, 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 | 13-18 mm, 3-3.5 times longer than wide, puberulent. |
18-20 mm, 3.5-4 times longer than wide, glabrous. |
Seeds | unwinged; seed coat cells with margins straight, surfaces ± roughened. |
unwinged; seed coats smooth. |
2n | = 16. |
|
Delphinium geraniifolium |
Delphinium bakeri |
|
Phenology | Flowering summer. | Flowering spring. |
Habitat | Heavy clay soil, dry meadows in coniferous woods | Brushlands and coastal chaparral |
Elevation | 1800-3400 m (5900-11200 ft) | 100-300 m (300-1000 ft) |
Distribution |
AZ; NM
|
CA |
Discussion | Delphinium geraniifolium is a more pubescent analog of the closely related D. scopulorum, the former occurring in heavier soils at higher elvation. (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. Wislizenana | Ranunculaceae > Delphinium > sect. Diedropetala > subsect. Grumosa |
Sibling taxa | ||
Synonyms | D. tenuisectum subsp. amplibracteatum | |
Name authority | Rydberg: Bull. Torrey Bot. Club 26: 583. (1899) | Ewan: Bull. Torrey Bot. Club 69: 144. (1942) |
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