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arctic larkspur, northern larkspur

Stems

20-50(-80) cm;

base often reddish, pubescent.

Leaves

blade round to pentagonal, 1.5-6 × 3-11 cm, puberulent; ultimate lobes 5-15, width 1-7(-15) mm.

Inflorescences

5-18-flowered;

pedicel 1-4.5 cm, pubescent;

bracteoles 2-7 mm from flowers, blue, linear, 5-8 mm, puberulent.

Flowers

sepals dark blue, apex rounded, puberulent, lateral sepals forward pointing, 17-24 × 7-9 mm, spurs straight to slightly decurved, ascending 30-60° above horizontal, 15-17 mm;

lower petal blades ± covering stamens, 5-7 mm, clefts 0.5-1.5 mm;

hairs sparse, local, centered, mostly above base of cleft, white.

Fruits

14-17 mm, 3.5-4 times longer than wide, pubescent.

Seeds

wing-margined;

seed coat cells ± elongate, surfaces roughened.

Delphinium brachycentrum

Phenology Flowering summer.
Habitat Well-drained tundra slopes
Elevation 0-1600 m (0-5200 ft)
Distribution
from FNA
AK; YT; e Asia
[BONAP county map]
Discussion

Hybrids with Delphinium glaucum are known as D. ×nutans A. Nelson.

(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. 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. 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
Synonyms D. chamissonis
Name authority Ledebour: Fl. Ross. 1: 60. (1841)
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