Delphinium hansenii |
Delphinium viridescens |
|||||||||
---|---|---|---|---|---|---|---|---|---|---|
Eldorado larkspur, Hansen's delphinium, Hansen's larkspur |
Wenatchee larkspur |
|||||||||
Stems | (25-)40-80(-180) cm; base usually reddish, pubescent. |
90-150 cm; base usually green, glabrous. |
||||||||
Leaves | blade pentagonal, 1.5-5 × 2.5-8 cm, long-pubescent, especially abaxially; ultimate lobes 0-18, width 4-20 mm (basal), 2-9 mm (cauline). |
blade cuneate to semicircular, 2-5 × 3-12 cm, nearly glabrous; ultimate lobes 3-21, width 1-8 mm. |
||||||||
Inflorescences | (9-)15-40(-160)-flowered, dense to open; pedicel 0.3-2.5(-6) cm, puberulent; bracteoles 1-5(-8) mm from flowers, green, sometimes white-margined, linear-lanceolate, 2-6(-8) mm, puberulent. |
25-80-flowered, dense; pedicel 0.5-2 cm, glandular-pubescent; bracteoles 1-4 mm from flowers, green, lanceolate, 3.5-6 mm, glandular-pubescent. |
||||||||
Flowers | sepals violet to white, ± puberulent, lateral sepals spreading to forward pointing, 7-10(-13) × 3-6(-8) mm, spurs gently upcurved, ascending 0-30° above horizontal, (6-)9-13(-16) mm; lower petal blades elevated, ± exposing stamens, 3-7 mm, cleft 1-2(-4) mm; hairs centered, densest on inner lobes near base of cleft, white. |
sepals yellowish green, nearly glabrous, lateral sepals forward pointing, 7-9 × 3-4 mm, spurs decurved, 30-45° below horizontal, often hooked apically, 8-11 mm; lower petal blades ± covering stamens, 4-6 mm, clefts 0.5-1.5 mm; hairs centered, mostly near junction of blade and claw, yellow. |
||||||||
Fruits | 8-20 mm, 2.2-4 times longer than wide, glabrous. |
8-11 mm, 2.5-3 times longer than wide, puberulent. |
||||||||
Seeds | echinate, appearing fuzzy to naked eye; seed coat cells with margins straight, surfaces sparsely pustulate. |
± wing-margined; seed coat cells with surfaces ± roughened. |
||||||||
Delphinium hansenii |
Delphinium viridescens |
|||||||||
Phenology | Flowering summer. | |||||||||
Habitat | Wet meadows and streamsides in coniferous forest, heavy clay soils | |||||||||
Elevation | 500-1000 m (1600-3300 ft) | |||||||||
Distribution |
CA
|
WA
|
||||||||
Discussion | Subspecies 3 (3 in the flora). Although Delphinium hansenii has often been confused with D. hesperium, seeds will instantly allow identification. Seeds of Delphinium hansenii are, as far as known, unique, bearing numerous, elongate, prismlike raised structures (extensions of single cells or small groups of cells) over the entire seed coat. If seeds are absent, larger flowers, more open inflorescences (except in D. hesperium subsp. cuyamacae), and general absence of pubescence of long hairs in D. hesperium are apparent upon comparison of the two species. Separating D. hansenii from D. variegatum may also be difficult. Again, seeds leave no doubt. In addition, smaller flowers and greater number of flowers per plant of D. hansenii should serve to distinguish D. hansenii from D. variegatum. White-flowered D. hansenii has been confused with D. gypsophilum and with D. hesperium subsp. pallescens. Other than seeds, pubescence of long hairs and smaller flowers present in D. hansenii and absent in the others will distinguish them. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Of conservation concern. Delphinium viridescens is local in mountains southwest of Wenatchee, Washington. (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. Echinata | Ranunculaceae > Delphinium > sect. Diedropetala > subsect. Multiplex | ||||||||
Sibling taxa | ||||||||||
Subordinate taxa | ||||||||||
Synonyms | D. hesperium var. hansenii | |||||||||
Name authority | (Greene) Greene: Pittonia 3: 94. (1896) | Leiberg: Proc. Biol. Soc. Wash. 11: 39. (1897) | ||||||||
Web links |