Delphinium luteum |
Delphinium multiplex |
|
---|---|---|
golden larkspur, yellow larkspur |
Kittitas larkspur |
|
Stems | 20-40(-55) cm; base often reddish, nearly glabrous. |
(40-)80-130(-180) cm; base usually green, glabrous. |
Leaves | blade round to pentagonal, 1-5 × 2-10 cm, nearly glabrous; ultimate lobes 3-5, width 8-30 mm (basal), 5-15 mm (cauline). |
blade round on proximal stem, ± cuneate on distal stem, 1.5-9 × 2-14 cm, glabrous; ultimate lobes 3-15, width 15-30 mm (basal), 1-20 mm (cauline). |
Inflorescences | 5-25(-37)-flowered; pedicel (1-)3-5(-7) cm, puberulent; bracteoles 6-10(-17) mm from flowers, green, linear-lanceolate, 6-7 mm, nearly glabrous. |
25-50-flowered, ± dense; pedicel 0.5-2 cm, glandular-puberulent; bracteoles 4-5 mm from flowers, green to blue, lanceolate-linear, 3-7 mm, glandular-puberulent. |
Flowers | sepals bright yellow, puberulent, appearing waxy, lateral sepals ± forward pointing, (11-)14-16 × (6-)9-13 mm, spur straight, ca. 30° below horizontal, 11-20 mm; lower petal blades elevated, exposing stamens, 3-4 mm, clefts 0.5-1.5 mm; hairs sparse or absent, ± evenly distributed if present, white to yellow. |
sepals dark blue, puberulent, lateral sepals forward pointing to spreading, 12-15 × 5-7 mm, spurs straight, within 20° of horizontal, 12-16 mm; lower petal blades slightly elevated, exposing stamens, 6-8 mm, clefts 2-3 mm; hairs centered, mostly near base of cleft, white. |
Fruits | 11-14 mm, 3.5-4.5 times longer than wide, glabrous. |
10-15 mm, 3-4 times longer than wide, glandular-puberulent. |
Seeds | unwinged; seed coat cell surfaces smooth. |
narrowly wing-margined; seed coat cells with surfaces somewhat roughened. |
2n | = 16. |
|
Delphinium luteum |
Delphinium multiplex |
|
Phenology | Flowering late winter-mid spring. | Flowering late spring–summer. |
Habitat | Wet cliffs, coastal grassland or chaparral | Rocky streambeds |
Elevation | 0-50 m (0-200 ft) | 1500-1800 m (4900-5900 ft) |
Distribution |
CA
|
WA
|
Discussion | Of conservation concern. Delphinium luteum is presently known from only three populations. It is known to hybridize with D. decorum and with D. nudicaule. Populations of D. hesperium subsp. hesperium also occur at the type locality; D. luteum flowers earlier and hybrids are not known. Delphinium luteum is not likely to be mistaken for any other species of Delphinium. It has been treated as a variety of D. nudicaule and is closely related to that species. Sepals of the infrequent yellow-flowered phase of D. nudicaule, however, have a much drabber appearance compared with the bright shining yellow of the sepals in D. luteum. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Delphinium multiplex hybridizes with D. glaucum and D. distichum. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 3. | FNA vol. 3. |
Parent taxa | Ranunculaceae > Delphinium > sect. Diedropetala > subsect. Bicoloria | Ranunculaceae > Delphinium > sect. Diedropetala > subsect. Multiplex |
Sibling taxa | ||
Synonyms | D. cyanoreios | |
Name authority | A. Heller: Bull. S. Calif. Acad. Sci. 6: 68. (1903) | (Ewan) C. L. Hitchcock: in C. L. Hitchcock et al., Vasc. Pl. Pacif. N.W. 2: 357. (1964) |
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