Delphinium uliginosum |
Delphinium californicum |
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swamp larkspur |
California larkspur, coast larkspur |
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Stems | 10-30(-70) cm; base reddish or not, nearly glabrous. |
(60-)100-160(-230) cm; base reddish, puberulent-glabrous. |
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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 pentagonal to round, 3-9 × 3-12 cm, puberulent; ultimate lobes 3-15, width 5-60 mm; midcauline leaf lobes less than 3 times longer than wide. |
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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. |
(16-)40-90(-162)-flowered; pedicel 0.5-2.5(-6.5) cm, puberulent; bracteoles 2-5 mm from flowers, reddish, linear, (3-)7-12(-15) mm, puberulent. |
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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 lavender to greenish white, abaxially puberulent, lateral sepals forward pointing to form a pseudotube, 6-11 × 5-7 mm, spurs straight, slightly ascending, apically downcurved, 7-11(-14) mm; lower petal blades elevated, ± exposing stamens, 3-5 mm, clefts 1.5-2.5 mm; hairs covering adaxial surface, white or light yellow. |
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Fruits | 10-18 mm, 4.1-4.5 times longer than wide, puberulent. |
11-16 mm, 2.5-3.5 times longer than wide, glabrous to sparsely puberulent. |
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Seeds | seed coat cells with surfaces bumpy or wavy. |
unwinged; seed coat cells elongate, surfaces ± roughened. |
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2n | = 16. |
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Delphinium uliginosum |
Delphinium californicum |
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Phenology | Flowering late spring–early summer. | |||||
Habitat | Serpentine streamsides, chaparral, grassland | |||||
Elevation | 400-600 m (1300-2000 ft) | |||||
Distribution |
CA
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CA
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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.) |
Subspecies 2 (2 in the flora). Delphinium californicum can be confused only with D. glaucum or D. exaltatum. The three species may be separated by the abundant pubescence and early flowering date of D. californicum as compared to the other two taxa, low elevation sites of D. californicum compared to D. glaucum, and western geographic distribution of D. californicum compared to D. exaltatum. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 3. | FNA vol. 3. | ||||
Parent taxa | Ranunculaceae > Delphinium > sect. Diedropetala > subsect. Depauperata | Ranunculaceae > Delphinium > sect. Diedropetala > subsect. Exaltata | ||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Name authority | Curran: Proc. Calif. Acad. Sci. 1: 151. (1885) | Torrey & A. Gray: Fl. N. Amer. 1: 31. (1838) | ||||
Web links |