Flora of North America species comparison

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Delphinium hutchinsoniae

Hutchinson's delphinium, Hutchinson's larkspur, Monterey larkspur
Stems

(25-)50-80(-100) cm;

base reddish, not longitudinally ridged, variably puberulent.
Leaves

blade round to pentagonal, 1-6 × 1.5-10 cm, puberulent; ultimate lobes 3-17, width 4-16(-25) mm (basal), 1-8(-19) mm (cauline).
Inflorescences

(2-)7-20(-31)-flowered, open;

pedicel 1-4(-6) cm, puberulent;

bracteoles (2-)8-12 mm from flowers, green, linear, 3-6(-9) mm, puberulent.
Flowers

sepals dark bluish purple, puberulent, lateral sepals spreading, (12-)14-19(-24) × 7-12(-15) mm, spurs ascending, decurved apically, 11-19 mm;

lower petal blades slightly elevated, mostly covering stamens, 5-10 mm, cleft 2-3 mm;

hairs sparse, mostly on inner lobes, absent on margins, white.
Fruits

9-21 mm, 2.5-4.2 times longer than wide, sparsely puberulent.
Seeds

not echinate, ± smooth to naked eye;

seed coat cells with margins ± undulate, surfaces smooth.

Delphinium hutchinsoniae
Phenology Flowering spring.
Habitat Coastal chaparral, clearings in coniferous woods
Elevation 0-400 m (0-1300 ft)
Distribution
from FNA
CA
[BONAP county map]
Discussion

Of conservation concern.

Delphinium hutchinsoniae is known from only a few populations near Monterey and south to the Big Sur region. Hybrids have been produced between D. hutchinsoniae and D. cardinale grown in a common garden. Hybrids also occur with D. parryi subsp. maritimum.

Delphinium hutchinsoniae is similar, and probably closely related, to D. variegatum. The two may be distinguished by the decurved spur of D. hutchinsoniae; the spur of D. variegatum is normally straight (or decurved nearer apex). Delphinium hutchinsoniae lacks marginal hairs on lower petals; such hairs are present in D. variegatum. The two species are also geographically separated.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 3.
Parent taxa Ranunculaceae > Delphinium > sect. Diedropetala > subsect. Echinata
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. 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
Name authority Ewan: Bull. Torrey Bot. Club 78: 379. (1951)
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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