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tall larkspur

mountain larkspur

Stems

70-200 cm;

base reddish, nearly glabrous.

(45-)70-100 cm;

base sometimes reddish, puberulent.

Leaves

blade pentagonal, 2-7 × 3-9 cm, puberulent; ultimate lobes 3-7, width 5-25 mm;

midcauline leaf lobes less than 3 times longer than wide.

blade round to pentagonal, 2-8 × 4-14 cm, nearly glabrous; ultimate lobes 5-21, width 1-5 mm;

midcauline leaf lobes more than 3 times longer than wide.

Inflorescences

8-30-flowered;

pedicel 0.5-2 cm, puberulent;

bracteoles 2-4 mm from flowers, green, linear, 2-4 mm, puberulent.

(10-)15-40(-120)-flowered;

pedicel 1-2.5(-4) cm, puberulent;

bracteoles 1-3 mm from flowers, green, sometimes margins white, linear or lanceolate, 3-5(-8) mm, puberulent.

Flowers

sepals whitish to pale lavender or purple, puberulent, lateral sepals forward pointing, 9-11 × 4-6 mm, spurs straight, as much as 45° above or below horizontal, 9-12 mm;

lower petal blades ± covering stamens, 3-5 mm, clefts 1-2 mm;

hairs centered, mostly near base of cleft, white.

sepals bright dark blue, apex rounded, puberulent, lateral sepals forward pointing to spreading, 11-13 × 4-6 mm, spurs straight, ascending ca. 30° above horizontal, 9-13 mm;

lower petal blades ± covering stamens, 5-7 mm, clefts 2-3 mm;

hairs centered above base of cleft, white.

Fruits

7-12 mm, 2-2.5 times longer than wide, ± puberulent.

11-17 mm, 3-4 times longer than wide, puberulent.

Seeds

± wing-margined;

seed coat cells elongate, surfaces smooth.

wing-margined;

seed coat cells narrow, short, surfaces roughened.

2n

= 16.

Delphinium exaltatum

Delphinium ramosum

Phenology Flowering summer. Flowering summer.
Habitat Rocky slopes in open deciduous woods and barrens, mainly on calcareous substrates, also shale and mafic and ultramafic rocks Meadows, aspen woodlands, Artemisia scrub
Elevation 150-2000 m (500-6600 ft) 2100-3200(-3400) m (6900-10500(-11200) ft)
Distribution
from FNA
AL; KY; MD; MO; NC; OH; PA; TN; VA; WV
[WildflowerSearch map]
[BONAP county map]
from FNA
CO; NM
[WildflowerSearch map]
[BONAP county map]
Discussion

Delphinium ramosum hybridizes with D. barbeyi and D. glaucum.

(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. Exaltata
Sibling taxa
D. alabamicum, D. alpestre, D. andersonii, D. andesicola, D. antoninum, D. bakeri, D. barbeyi, D. basalticum, D. bicolor, D. brachycentrum, D. californicum, D. cardinale, D. carolinianum, D. decorum, D. depauperatum, D. distichum, D. elatum, D. geraniifolium, D. geyeri, D. glareosum, D. glaucescens, D. glaucum, D. gracilentum, D. gypsophilum, D. hansenii, D. hesperium, D. hutchinsoniae, D. inopinum, D. lineapetalum, D. luteum, D. madrense, D. menziesii, D. multiplex, D. newtonianum, D. novomexicanum, D. nudicaule, D. nuttallianum, D. nuttallii, D. parishii, D. parryi, D. patens, D. polycladon, D. purpusii, D. ramosum, D. recurvatum, D. robustum, D. sapellonis, D. scaposum, D. scopulorum, D. stachydeum, D. sutherlandii, D. treleasei, D. tricorne, D. trolliifolium, D. uliginosum, D. umbraculorum, D. variegatum, D. viridescens, D. wootonii, D. xantholeucum
D. alabamicum, D. alpestre, D. andersonii, D. andesicola, D. antoninum, D. bakeri, D. barbeyi, D. basalticum, D. bicolor, D. brachycentrum, D. californicum, D. cardinale, D. carolinianum, D. decorum, D. depauperatum, D. distichum, D. elatum, D. exaltatum, D. geraniifolium, D. geyeri, D. glareosum, D. glaucescens, D. glaucum, D. gracilentum, D. gypsophilum, D. hansenii, D. hesperium, D. hutchinsoniae, D. inopinum, D. lineapetalum, D. luteum, D. madrense, D. menziesii, D. multiplex, D. newtonianum, D. novomexicanum, D. nudicaule, D. nuttallianum, D. nuttallii, D. parishii, D. parryi, D. patens, D. polycladon, D. purpusii, D. recurvatum, D. robustum, D. sapellonis, D. scaposum, D. scopulorum, D. stachydeum, D. sutherlandii, D. treleasei, D. tricorne, D. trolliifolium, D. uliginosum, D. umbraculorum, D. variegatum, D. viridescens, D. wootonii, D. xantholeucum
Name authority Aiton: Hort. Kew. 2: 244. (1789) Rydberg: Bull. Torrey Bot. Club 28: 276. (1901)
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