Delphinium californicum subsp. interius

(Eastwood) Ewan

Univ. Colorado Stud., Ser. D, Phys. Sci. 2: 146. 1945.

Common names: Hospital Canyon larkspur
Conservation concernEndemic
Basionym: Delphinium californicum var. interius Eastwood Leafl. W. Bot. 2: 137. 1938
Treatment appears in FNA Volume 3.

Stems proximally sparsely puberulent, remainder ± glabrous. Leaf-blades glabrous. Inflorescences nearly glabrous. Flowers: sepals spreading to erect, greenish white, hairs usually near apex only, lateral sepals 6-8 mm, spurs 7-10 mm; upper petals glabrous.


Phenology: Flowering late spring.
Habitat: Usually on inland facing slopes in open woods
Elevation: 300-800 m

Discussion

Of conservation concern.

Delphinium californicum subsp. interius is known from fewer than a dozen localities. It apparently hybridizes with D. hesperium subsp. pallescens.

Selected References

None.

Lower Taxa

None.
Michael J. Warnock +
(Eastwood) Ewan +
usually larger +
puberulent-glabrous +
not narrowed +
expanded +
Delphinium californicum var. interius +
straight +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
subopposite-subalternate +
1.2 cm12 mm <br />0.012 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0 cm0 mm <br />0 m <br /> (?) +  and 0.3 cm3 mm <br />0.003 m <br /> (?) +
globose;cylindric +
elongate +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
Hospital Canyon larkspur +
300-800 m +
sessile +  and pedicellate +
showy +  and inconspicuous +
cylindric +
glabrous +  and sparsely puberulent +
1.1 cm11 mm <br />0.011 m <br /> (1.6 cm16 mm <br />0.016 m <br />) +
sessile +  and aggregate +
curved-cylindric +
Usually on inland facing slopes in open woods +
light yellow;white +
(16-)40-90(-162)-flowered +
axillary +  and terminal +
0.6 cm6 mm <br />0.006 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
less ovate +  and elliptic +
0.6 cm6 mm <br />0.006 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
3 cm30 mm <br />0.03 m <br /> (9 cm90 mm <br />0.09 m <br />) +
pentagonal +  and round +
whorled +, opposite +  and alternate +
smaller +, slightly below middle slightly below middle internodes +  and largest +
lacerate;crenate +
clawed +, 2-lobed +, ovate +  and plane +
0.2 cm2 mm <br />0.002 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
palmate +  and pinnate +
incised;toothed;incised;toothed;entire +
reduced +
2.5 cm25 mm <br />0.025 m <br /> (6.5 cm65 mm <br />0.065 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
distinct +
conspicuous +
spurred +, funnel--shaped +, cup-shaped +  and plane +
reduced +
0.5 cm5 mm <br />0.005 m <br /> (7 cm70 mm <br />0.07 m <br />) +
Flowering late spring. +
Univ. Colorado Stud., Ser. D, Phys. Sci. +
2-100-flowered +
5 cm50 mm <br />0.05 m <br /> (40 cm400 mm <br />0.4 m <br />) +
twisted +  and 4-15-branched +
tuberlike +
10 cm100 mm <br />0.1 m <br /> (80 cm800 mm <br />0.8 m <br />) +
dark-brown +  and black +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
not ringed +
rectangular +  and crescent-shaped +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
greenish white +
not persistent +
distinct +
spreading +  and erect +
3 +  and 6 +
not +  and veined +
Conservation concern +  and Endemic +
1.1 cm11 mm <br />0.011 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
straight +
downcurved +  and ascending +
0.7 cm7 mm <br />0.007 m <br /> (1 cm10 mm <br />0.01 m <br />) +
160 cm1,600 mm <br />1.6 m <br /> (230 cm2,300 mm <br />2.3 m <br />) +
glabrous +  and puberulent +
3 +  and 8 +
100 cm1,000 mm <br />1 m <br /> (160 cm1,600 mm <br />1.6 m <br />) +
persistent +
Delphinium californicum subsp. interius +
Delphinium californicum +
subspecies +
0.5 cm5 mm <br />0.005 m <br /> (6 cm60 mm <br />0.06 m <br />) +
0.8 cm8 mm <br />0.008 m <br /> (2.4 cm24 mm <br />0.024 m <br />) +
herbaceous +  and woody +