Delphinium lineapetalum |
Delphinium hutchinsoniae |
|
---|---|---|
thinpetal larkspur |
Hutchinson's delphinium, Hutchinson's larkspur, Monterey larkspur |
|
Stems | (15-)30-60 cm; base usually reddish, glabrous to glaucous. |
(25-)50-80(-100) cm; base reddish, not longitudinally ridged, variably puberulent. |
Leaves | blade round, 1-5 × 2-6 cm, glabrous; ultimate lobes 5-16, width 1-4 mm (basal), 0.5-3 mm (cauline). |
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 | (3-)9-24(-40)-flowered, pyramidal; pedicel spreading, 1-2.5 cm, glabrous or glandular-puberulent; bracteoles 4-7 mm from flowers, blue or green, linear, 1-3 mm, glabrous or glandular-puberulent. |
(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 light blue to lavender, nearly glabrous, lateral sepals reflexed, 10-13 × 3-5 mm, spurs straight to slightly decurved, nearly horizontal to ascending ca. 30°, 11-17 mm; lower petal blades elevated, exposing stamens, 3-5 mm, clefts 0.5-2 mm; hairs centered mostly on inner lobes near base of cleft, white. |
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 | 13-21 mm, 4-4.5 times longer than wide, puberulent to glabrous. |
9-21 mm, 2.5-4.2 times longer than wide, sparsely puberulent. |
Seeds | seed coat cells narrow, short, cell margins straight, surfaces smooth. |
not echinate, ± smooth to naked eye; seed coat cells with margins ± undulate, surfaces smooth. |
Delphinium lineapetalum |
Delphinium hutchinsoniae |
|
Phenology | Flowering spring. | Flowering spring. |
Habitat | Open pine woods, dry meadows | Coastal chaparral, clearings in coniferous woods |
Elevation | 400-1800 m (1300-5900 ft) | 0-400 m (0-1300 ft) |
Distribution |
WA
|
CA |
Discussion | Of conservation concern. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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. | FNA vol. 3. |
Parent taxa | Ranunculaceae > Delphinium > sect. Diedropetala > subsect. Subscaposa | Ranunculaceae > Delphinium > sect. Diedropetala > subsect. Echinata |
Sibling taxa | ||
Synonyms | D. nuttallianum var. lineapetalum | |
Name authority | Ewan: Univ. Colorado Stud., Ser. D, Phys. Sci. 2: 126. (1945) | Ewan: Bull. Torrey Bot. Club 78: 379. (1951) |
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