Delphinium polycladon |
Delphinium madrense |
|
---|---|---|
high mountain larkspur, mountain marsh larkspur |
Edwards' Plateau larkspur, Sierra madre larkspur |
|
Stems | (20-)60-100(-160) cm; base reddish or not, glabrous. |
30-80(-100) cm; base often reddish, puberulent. |
Leaves | blade round to pentagonal, 1.5-7 × 2-14 cm, glabrous; ultimate lobes 3-12, width 4-30(-45) mm (basal), 3-30 mm (cauline). |
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 | 3-15(-35)-flowered, open, often ± secund; pedicel 1-4(-15) cm, glabrous to puberulent; bracteoles 2-8(-37) mm from flowers, green, linear, 4-7(-11) mm, nearly glabrous. |
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 bluish purple, nearly glabrous, lateral sepals spreading, (10-)12-18 × 7-10 mm, spurs usually downcurved, ca. 30° below horizontal, 11-22 mm; lower petal blades slightly elevated, ± exposing stamens, 4-6 mm, clefts 1-2 mm; hairs mostly near base of cleft on inner lobes, yellow, sometimes 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 | 13-20 mm, 3.5-4 times longer than wide, puberulent. |
15-21 mm, 3.5-4.5 times longer than wide, nearly glabrous. |
Seeds | unwinged; seed coat cells with surfaces roughened. |
seed coat cells with surfaces pustulate. |
2n | = 16. |
|
Delphinium polycladon |
Delphinium madrense |
|
Phenology | Flowering summer–early autumn. | Flowering spring–early summer. |
Habitat | Wet sites near springs, streamsides, bogs, and wet talus | Calcareous slopes, oak woods or desert scrub |
Elevation | 2200-3600 m (7200-11800 ft) | 300-2100 m (1000-6900 ft) |
Distribution |
CA; NV
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TX; Mexico (Coahuila, Nuevo León, and Tamaulipas) |
Discussion | Delphinium polycladon hybridizes with D. depauperatum and D. glaucum. Plants of D. polycladon are extremely variable. Individuals from very rocky, thin-soiled, sunny sites at higher elevations tend to be quite compact; they show the features of the species in a dwarfed state. Proximal internodes are especially shortened. Plants from areas of deeper soil (high or low elevations), especially those growing among shrubs, usually are much taller, with elongate proximal internodes, and other vegetative parts proportionally larger. Shorter plants may be confused with D. depauperatum or D. nuttallianum; see discussion under those species for distinguishing features. Taller plants may be confused with D. glaucum; they can be distinguished by their leaves predominately on proximal part of stem, sigmoid pedicel, and fewer flowers. (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. Multiplex | Ranunculaceae > Delphinium > sect. Diedropetala > subsect. Virescens |
Sibling taxa | ||
Synonyms | D. scopulorum var. luporum | |
Name authority | Eastwood: Bull. Torrey Bot. Club 28: 669. (1901) | S. Watson: Proc. Amer. Acad. Arts 17: 141. (1890) |
Web links |