Delphinium uliginosum |
Delphinium madrense |
|
---|---|---|
swamp larkspur |
Edwards' Plateau larkspur, Sierra madre larkspur |
|
Stems | 10-30(-70) cm; base reddish or not, nearly glabrous. |
30-80(-100) cm; base often reddish, 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 semicircular to cordate, 2-8 × 2-10 cm, nearly glabrous; ultimate lobes 3-12, width 3-10 mm (basal), 2-6 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. |
5-75(-98)-flowered; pedicel 1-2.5(-5) cm, puberulent; bracteoles 2-4(-8) mm from flowers, green, lanceolate-linear, 3-5 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 to light blue, puberulent, lateral sepals spreading, 9-15 × 5-7 mm, spurs straight, ascending ca. 45(-90)°, 10-15(-19) mm; lower petal blades elevated, exposing stamens, 4-7 mm, clefts 2-4 mm; hairs centered, densest on inner lobes near base of cleft, white. |
Fruits | 10-18 mm, 4.1-4.5 times longer than wide, puberulent. |
15-21 mm, 3.5-4.5 times longer than wide, nearly glabrous. |
Seeds | seed coat cells with surfaces bumpy or wavy. |
seed coat cells with surfaces pustulate. |
2n | = 16. |
|
Delphinium uliginosum |
Delphinium madrense |
|
Phenology | Flowering late spring–early summer. | Flowering spring–early summer. |
Habitat | Serpentine streamsides, chaparral, grassland | Calcareous slopes, oak woods or desert scrub |
Elevation | 400-600 m (1300-2000 ft) | 300-2100 m (1000-6900 ft) |
Distribution |
CA
|
TX; Mexico (Coahuila, Nuevo León, and Tamaulipas) |
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 madrense hybridizes with D. carolinianum subspp. vimineum and virescens. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 3. | FNA vol. 3. |
Parent taxa | Ranunculaceae > Delphinium > sect. Diedropetala > subsect. Depauperata | Ranunculaceae > Delphinium > sect. Diedropetala > subsect. Virescens |
Sibling taxa | ||
Name authority | Curran: Proc. Calif. Acad. Sci. 1: 151. (1885) | S. Watson: Proc. Amer. Acad. Arts 17: 141. (1890) |
Web links |