Flora of North America species comparison

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Delphinium brachycentrum

Delphinium andesicola

arctic larkspur, northern larkspur

Chiricahua Mountain larkspur
Stems

20-50(-80) cm;

base often reddish, pubescent.

60-200 +cm;

base reddish or not, glabrous, glaucous.
Leaves

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

blade cordate to semicircular, 5-8 × 5-12 cm, nearly glabrous; ultimate lobes 5-16, width 3-20 mm, tips gradually tapered to mucronate apex;

midcauline leaf lobes more than 3 times longer than wide.
Inflorescences

5-18-flowered;

pedicel 1-4.5 cm, pubescent;

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

20-80-flowered;

pedicel 1-2(-3) cm, puberulent;

bracteoles 1-3 mm from flowers, green to brown, linear-lanceolate, 3-6 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.

sepals purple, puberulent, lateral sepals spreading, 9-12 × 5-7 mm, spurs ascending ca. 45°, curved downward apically, purple, 10-13 mm, blunt tipped;

lower petal blades ± covering stamens, 4-6 mm, clefts 1.5-2.5 mm;

hairs centered, densest on inner lobes near base of cleft, white.
Fruits

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

12-15 mm, 3.5-4 times longer than wide, sparsely puberulent.
Seeds

wing-margined;

seed coat cells ± elongate, surfaces roughened.

unwinged;

seed coat cells elongate, surfaces pustulate.
2n

= 16.

Delphinium brachycentrum

Delphinium andesicola
Phenology Flowering summer. Flowering summer–early fall.
Habitat Well-drained tundra slopes Meadows and coniferous woods
Elevation 0-1600 m (0-5200 ft) 2200-3200 m (7200-10500 ft)
Distribution
from FNA
AK; YT; e Asia
[BONAP county map]
from FNA
AZ
[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.)

Delphinium andesicola, the westernmost representative of the southern Cordilleran complex, is found in the Chiricahua, Huachuca, Graham, and White mountains. Hybrids with Delphinium scopulorum are known.

(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. 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
D. alabamicum, D. alpestre, D. andersonii, 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. 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 D. andesicola subsp. amplum
Name authority Ledebour: Fl. Ross. 1: 60. (1841) Ewan: J. Washington Acad. Sci. 29: 476. (1939)
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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