Delphinium nuttallii subsp. nuttallii(synonym of Delphinium oreganum) |
Delphinium hutchinsoniae |
|
---|---|---|
Willamette Valley larkspur |
Hutchinson's delphinium, Hutchinson's larkspur, Monterey larkspur |
|
Stems | 40-70 cm. |
(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 blue or bluish purple, spurs 10-13 mm; lower petal blades 4.5-6.5 mm. |
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. |
|
2n | = 16. |
|
Delphinium nuttallii subsp. nuttallii |
Delphinium hutchinsoniae |
|
Phenology | Flowering late spring–early summer. | Flowering spring. |
Habitat | Rock outcrops, rocky meadows | Coastal chaparral, clearings in coniferous woods |
Elevation | 20-300 m (100-1000 ft) | 0-400 m (0-1300 ft) |
Distribution |
OR; WA |
CA |
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. | FNA vol. 3. |
Parent taxa | Ranunculaceae > Delphinium > sect. Diedropetala > subsect. Grumosa > Delphinium nuttallii | Ranunculaceae > Delphinium > sect. Diedropetala > subsect. Echinata |
Sibling taxa | ||
Name authority | unknown | Ewan: Bull. Torrey Bot. Club 78: 379. (1951) |
Web links |