Flora of North America species comparison

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Delphinium wootonii

Organ Mountain larkspur, Wooton's larkspur
Stems

(15-)30-50(-60) cm;

base sometimes reddish, pubescent.
Leaves

blade reniform to fan-shaped, 1.5-3 × 2.5-4 cm, puberulent; ultimate lobes 5-24, width 2-6 mm (basal), 1-3 mm (cauline).
Inflorescences

15-30(-49)-flowered;

pedicel 1-2(-3.6) cm, puberulent;

bracteoles 1-5 mm from flowers, green, linear, 1-4(-12) mm, puberulent.
Flowers

sepals white to lavender, nearly glabrous, lateral sepals usually reflexed, (6-)8-13 × 3-7 mm, spur straight, ascending 30-80° above horizontal, (8-)13-20(-25) mm;

lower petal blades ± elevated, 6-9 mm, cleft 2.5-4.5 mm;

hairs centered, densest near base of cleft, white.
Fruits

(10-)11-20(-24) mm, 3-3.5 times longer than wide, glabrous.
Seeds

seed coat cells with surfaces pustulate.
2n

= 16.

Delphinium wootonii
Phenology Flowering spring.
Habitat Oak woods, grasslands, desert scrub
Elevation 700-1800 m (2300-5900 ft)
Distribution
from FNA
AZ; CO; NM; TX; Mexico (Sonora, Chihuahua, and Coahuila)
[WildflowerSearch map]
[BONAP county map]
Discussion

Delphinium wootonii hybridizes with D. madrense in the eastern Big Bend area of Texas, and with D. carolinianum subsp. virescens.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 3.
Parent taxa Ranunculaceae > Delphinium > sect. Diedropetala > subsect. Virescens
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. 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. xantholeucum
Synonyms D. virescens subsp. wootonii
Name authority Rydberg: Bull. Torrey Bot. Club 26: 587. (1900)
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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