Delphinium uliginosum |
Delphinium umbraculorum |
|
---|---|---|
swamp larkspur |
umbrella larkspur |
|
Stems | 10-30(-70) cm; base reddish or not, nearly glabrous. |
40-70(-90) cm; base often reddish, glabrous or puberulent. |
Leaves | blade obdeltoid, apically several parted, 1-8 × 1-7 cm, ± fleshy, glabrous; ultimate lobes 0-3, width 3-20 mm (cauline only); margins of basal leaf, measured less than 1 cm from blade base, demarcating less than 90° of arc when leaf laid flat. |
blade round to pentagonal, 1.5-4 × 2-6 cm, nearly glabrous; ultimate lobes 3-13, width 3-20 mm (basal), 1-8 mm (cauline). |
Inflorescences | 5-20(-48)-flowered, ± open; pedicel 0.3-3(-10) cm, glabrous to puberulent; bracteoles 2-3(-5) mm from flowers, green to blue, lanceolate-linear, 3-4(-7) mm, puberulent. |
(5-)10-25(-45)-flowered, open, narrowly pyramidal; pedicel 0.5-3(-7) cm, glabrous to puberulent; bracteoles 3-7 mm from flowers, green, linear, 3-6 mm, puberulent. |
Flowers | sepals dark blue, nearly glabrous, lateral sepals spreading, 9-15 × 5-8 mm, spurs usually upcurved, ascending 30-45° above horizontal, 10-14 mm; lower petal blades slightly elevated, ± exposing stamens, 4-5 mm, clefts 2-3 mm; hairs centered, densest on inner lobe above base of cleft, also on margins, white. |
sepals dark blue, puberulent, lateral sepals spreading, 9-16 × 4-7 mm, spurs gently upcurved, ascending 30-45° above horizontal, 8-14 mm; lower petal blades elevated, exposing stamens, 3.5-6 mm, clefts 0.5-1.5 mm; hairs densest near junction of blade and claw above base of cleft, centered or on inner lobes, white. |
Fruits | 10-18 mm, 4.1-4.5 times longer than wide, puberulent. |
9-16(-19) mm, 2.5-3(-4) times longer than wide, puberulent. |
Seeds | seed coat cells with surfaces bumpy or wavy. |
seed coat cells brick-shaped, cell margins straight, surfaces smooth. |
2n | = 16. |
= 16. |
Delphinium uliginosum |
Delphinium umbraculorum |
|
Phenology | Flowering late spring–early summer. | Flowering late spring–early summer. |
Habitat | Serpentine streamsides, chaparral, grassland | Slopes in oak forests |
Elevation | 400-600 m [1300-2000 ft] | 400-1600 m [1300-5200 ft] |
Distribution |
CA
|
CA
|
Discussion | Although some populations are large, Delphinium uliginosum is very local. Hybrids with D. hesperium subsp. pallescens have been seen. Delphinium uliginosum is a very distinctive species, not likely to be confused with any other. The fan-shaped, slightly dissected leaves are apparently unique in the genus. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Delphinium umbraculorum is most often confused with D. patens subsp. hepaticoideum; refer to discussion of that taxon for distinguishing features. Hybrids occur with D. parryi and D. patens subsp. montanum. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 3. | FNA vol. 3. |
Parent taxa | ||
Sibling taxa | ||
Name authority | Curran: Proc. Calif. Acad. Sci. 1: 151. (1885) | H. F. Lewis & Epling: Brittonia 8: 19. (1954) |
Web links |