Delphinium uliginosum

Curran

Proc. Calif. Acad. Sci. 1: 151. 1885.

Common names: Swamp larkspur
EndemicIllustrated
Treatment appears in FNA Volume 3.

Stems 10-30 (-70) cm; base reddish or not, nearly glabrous. Leaves mostly on proximal 1/4 of stem; basal leaves 6-8 at anthesis; cauline leaves 0-5 at anthesis; petiole 0.3-7 cm. Leaf-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. 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. 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. Fruits 10-18 mm, 4.1-4.5 times longer than wide, puberulent. Seeds: seed-coat cells with surfaces bumpy or wavy. 2n = 16.


Phenology: Flowering late spring–early summer.
Habitat: Serpentine streamsides, chaparral, grassland
Elevation: 400-600 m

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.

Selected References

None.

Lower Taxa

None.
... more about "Delphinium uliginosum"
0 +  and 90 +
Michael J. Warnock +
Curran +
usually larger +
not +  and reddish +
narrowed +
expanded +
straight +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
smaller +
subopposite-subalternate +
0.4 cm4 mm <br />0.004 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
green +  and blue +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
lanceolate-linear +
minute +
0 cm0 mm <br />0 m <br /> (?) +  and 0.3 cm3 mm <br />0.003 m <br /> (?) +
globose;cylindric +
elongate +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
Swamp larkspur +
400-600 m +
showy +  and inconspicuous +
cylindric +
1 cm10 mm <br />0.01 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
sessile +  and aggregate +
curved-cylindric +
Serpentine streamsides, chaparral, grassland +
open +  and 5-20(-48)-flowered +
axillary +  and terminal +
0.9 cm9 mm <br />0.009 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
less ovate +  and elliptic +
0.8 cm8 mm <br />0.008 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
1 cm10 mm <br />0.01 m <br /> (8 cm80 mm <br />0.08 m <br />) +
parted +  and obdeltoid +
whorled +, opposite +  and alternate +
cauline +  and basal +
largest +
lacerate;crenate +
clawed +, 2-lobed +, ovate +  and plane +
0.2 cm2 mm <br />0.002 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
palmate +  and pinnate +
incised;toothed;incised;toothed;entire +
smaller +
3 cm30 mm <br />0.03 m <br /> (10 cm100 mm <br />0.1 m <br />) +
glabrous +  and puberulent +
0.3 cm3 mm <br />0.003 m <br /> (3 cm30 mm <br />0.03 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
distinct +
conspicuous +
spurred +, funnel--shaped +, cup-shaped +  and plane +
reduced +
0.3 cm3 mm <br />0.003 m <br /> (7 cm70 mm <br />0.07 m <br />) +
Flowering late spring–early summer. +
Proc. Calif. Acad. Sci. +
2-100-flowered +
5 cm50 mm <br />0.05 m <br /> (40 cm400 mm <br />0.4 m <br />) +
2-8-branched +
10 cm100 mm <br />0.1 m <br /> (15 cm150 mm <br />0.15 m <br />) +
tuberlike +
2 cm20 mm <br />0.02 m <br /> (10 cm100 mm <br />0.1 m <br />) +
dry +  and fleshy +
wing-margined +
dark-brown +  and black +
0.13 cm1.3 mm <br />0.0013 m <br /> (0.23 cm2.3 mm <br />0.0023 m <br />) +
not ringed +
rectangular +  and crescent-shaped +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.14 cm1.4 mm <br />0.0014 m <br />) +
not persistent +
distinct +
3 +  and 6 +
not +  and veined +
Endemic +  and Illustrated +
ascending +  and upcurved +
1 cm10 mm <br />0.01 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
30 cm300 mm <br />0.3 m <br /> (70 cm700 mm <br />0.7 m <br />) +
10 cm100 mm <br />0.1 m <br /> (30 cm300 mm <br />0.3 m <br />) +
persistent +
Delphinium uliginosum +
Delphinium subsect. Depauperata +
species +
0.3 cm3 mm <br />0.003 m <br /> (2 cm20 mm <br />0.02 m <br />) +
0.8 cm8 mm <br />0.008 m <br /> (2.4 cm24 mm <br />0.024 m <br />) +
herbaceous +  and woody +