Flora of North America species comparison

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Delphinium exaltatum

Delphinium glareosum

tall larkspur
Delphinium glareosum

Olympic larkspur, Olympic Mountain larkspur, rockslide larkspur
Stems

70-200 cm;

base reddish, nearly glabrous.

20-40 cm;

base reddish or not, glabrous, glaucous.
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, 2-4 × 3-7 cm, not succulent, glabrous; ultimate lobes 7-15, width 3-10 mm (basal), 2-7 mm (cauline).
Inflorescences

8-30-flowered;

pedicel 0.5-2 cm, puberulent;

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

5-12-flowered;

pedicel 1-5(-10) cm, nearly glabrous to glandular-puberulent;

bracteoles 2-10(-20) mm from flowers, green, linear, 3-8 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 dark blue, nearly glabrous, lateral sepals spreading, 14-22 × 6-10 mm, spurs ± straight, orientation varies from 30° above to 30° below horizontal, 16-20 mm;

lower petal blades slightly elevated, ± covering stamens, 6-9 mm, clefts 2-4 mm;

hairs local, densest on inner lobes near base of cleft, white to light yellow.
Fruits

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

12-17 mm, 2.5-3 times longer than wide, glabrous.
Seeds

± wing-margined;

seed coat cells elongate, surfaces smooth.

± wing-margined;

seed coat cells with surfaces smooth.

Delphinium exaltatum

Delphinium glareosum
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 Steep rocky subalpine to alpine slopes
Elevation 150-2000 m (500-6600 ft) 1500-2800 m (4900-9200 ft)
Distribution
from FNA
AL; KY; MD; MO; NC; OH; PA; TN; VA; WV
[WildflowerSearch map]
[BONAP county map]
from FNA
OR; WA; BC
[WildflowerSearch map]
[BONAP county map]
Discussion

See discussion under Delphinium bicolor.

(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. Bicoloria
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. 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. caprorum
Name authority Aiton: Hort. Kew. 2: 244. (1789) Greene: Pittonia 3: 257. (1898)
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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