Flora of North America species comparison

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Delphinium ramosum

mountain larkspur
Stems

(45-)70-100 cm;

base sometimes reddish, puberulent.
Leaves

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

(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 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

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

wing-margined;

seed coat cells narrow, short, surfaces roughened.
2n

= 16.

Delphinium ramosum
Phenology Flowering summer.
Habitat Meadows, aspen woodlands, Artemisia scrub
Elevation 2100-3200(-3400) m (6900-10500(-11200) ft)
Distribution
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.
Parent taxa 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. 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 Rydberg: Bull. Torrey Bot. Club 28: 276. (1901)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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