Delphinium barbeyi |
Delphinium polycladon |
|
---|---|---|
Barbey larkspur, Barbey's larkspur, subalpine larkspur, tall larkspur |
high mountain larkspur, mountain marsh larkspur |
|
Stems | 50-150 cm; base green, glabrous. |
(20-)60-100(-160) cm; base reddish or not, glabrous. |
Leaves | blade round to reniform, 4-8 × 7-15 cm, glabrous; ultimate lobes 5-9, width 8-50 mm. |
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). |
Inflorescences | 10-50-flowered; pedicel 0.5-6 cm, glandular-puberulent; bracteoles 1-4(-8) mm from flowers, blue to green, awl-shaped, 5-14 mm, puberulent. |
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. |
Flowers | sepals dark bluish purple, sparsely puberulent, lateral sepals forward pointing, 13-23 × 5-8 mm, spurs ascending ca. 45°, downcurved apically, 10-18 mm; lower petal blades ± covering stamens, 4-7 mm, clefts 2-3 mm; hairs centered, mostly near base of cleft, sparse elsewhere, white or yellow. |
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. |
Fruits | 17-22 mm, 2.5-3 times longer than wide, puberulent. |
13-20 mm, 3.5-4 times longer than wide, puberulent. |
Seeds | wing-margined; seed coat cells narrow but short, surfaces pustulate. |
unwinged; seed coat cells with surfaces roughened. |
2n | = 16. |
= 16. |
Delphinium barbeyi |
Delphinium polycladon |
|
Phenology | Flowering summer. | Flowering summer–early autumn. |
Habitat | Subalpine and alpine sites in wet soils | Wet sites near springs, streamsides, bogs, and wet talus |
Elevation | 2500-4100 m (8200-13500 ft) | 2200-3600 m (7200-11800 ft) |
Distribution |
AZ; CO; NM; UT; WY
|
CA; NV
|
Discussion | Delphinium barbeyi hybridizes extensively with D. glaucum in western Colorado and eastern Utah, where plants appearing to be hybrid [D. ×occidentale (S. Watson) S. Watson] are often far more common than plants of either putative parent. Several other names have been used for these plants, including D. elatum var. occidentale S. Watson, D. abietorum Tidestrom, and D. scopulorum subsp. occidentale (S. Watson) Abrams. Delphinium barbeyi is also known to hybridize with D. ramosum and D. sapellonis. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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.) |
Source | FNA vol. 3. | FNA vol. 3. |
Parent taxa | Ranunculaceae > Delphinium > sect. Diedropetala > subsect. Exaltata | Ranunculaceae > Delphinium > sect. Diedropetala > subsect. Multiplex |
Sibling taxa | ||
Synonyms | D. exaltatum var. (e) barbeyi, D. occidentale var. barbeyi | D. scopulorum var. luporum |
Name authority | (Huth) Huth: Bull. Herb. Boissier 1: 335. (1893) | Eastwood: Bull. Torrey Bot. Club 28: 669. (1901) |
Web links |