Delphinium viridescens |
Delphinium geyeri |
|
---|---|---|
Wenatchee larkspur |
Geyer's larkspur, poisonweed |
|
Stems | 90-150 cm; base usually green, glabrous. |
(15-)30-60(-80) cm; base usually reddish, puberulent. |
Leaves | blade cuneate to semicircular, 2-5 × 3-12 cm, nearly glabrous; ultimate lobes 3-21, width 1-8 mm. |
blade light green, ± round, 1-5 × 1-6 cm, densely pubescent; ultimate lobes 7-20, width 2-5 mm (basal), 2-4 mm (cauline), apex gradually tapering to point; veins obscure. |
Inflorescences | 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. |
6-30(-60)-flowered, ± open, cylindric; pedicel ascending to spreading, 1-3(-4) cm, puberulent; bracteoles 1-3 mm from flowers, green, lanceolate, 3-6 mm, puberulent. |
Flowers | 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. |
sepals bright blue, puberulent, lateral sepals spreading, 10-18 × 4-8 mm, spurs straight to slightly downcurved, ascending 0-30°, 11-16 mm; lower petal blades slightly elevated, ± exposing stamens, 4-8 mm, clefts 0.5-2 mm; hairs centered, densest on inner lobes near base of cleft, white to light yellow. |
Fruits | 8-11 mm, 2.5-3 times longer than wide, puberulent. |
11-15 mm, 3-3.5 times longer than wide, sparse puberulent. |
Seeds | ± wing-margined; seed coat cells with surfaces ± roughened. |
unwinged; seed coat cells with margins straight, surfaces ± roughened. |
2n | = 16. |
|
Delphinium viridescens |
Delphinium geyeri |
|
Phenology | Flowering summer. | Flowering late spring–early summer. |
Habitat | Wet meadows and streamsides in coniferous forest, heavy clay soils | Grasslands or Artemisia-Cercocarpus scrub |
Elevation | 500-1000 m (1600-3300 ft) | 1400-3000 m (4600-9800 ft) |
Distribution |
WA
|
CO; MT; NE; UT; WY
|
Discussion | Of conservation concern. Delphinium viridescens is local in mountains southwest of Wenatchee, Washington. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Apparently closely related to Delphinium stachydeum, D. geyeri is generally smaller, earlier flowering, with more finely dissected leaves and a more eastern geographic distribution. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 3. | FNA vol. 3. |
Parent taxa | Ranunculaceae > Delphinium > sect. Diedropetala > subsect. Multiplex | Ranunculaceae > Delphinium > sect. Diedropetala > subsect. Wislizenana |
Sibling taxa | ||
Name authority | Leiberg: Proc. Biol. Soc. Wash. 11: 39. (1897) | Greene: Erythea 2: 189. (1894) |
Web links |