Delphinium nuttallii subsp. ochroleucum

(Nuttall) M. J. Warnock

Phytologia 78: 98. 1995.

Common names: Light-yellow-flowered larkspur
Conservation concernEndemic
Basionym: Delphinium menziesii var. (ß) Nuttall in J. Torrey & A. Gray, Fl. N. Amer. 1: 31. 1838
Synonyms: Delphinium leucophaeum Greene
Treatment appears in FNA Volume 3.
Revision as of 07:24, 30 July 2020 by imported>Volume Importer
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)

Stems 30-60 cm. Flowers: sepals white or light yellow, spurs 9-11 mm; lower petal blades 4-6 mm. 2n = 16.


Phenology: Flowering late spring.
Habitat: Rock outcrops, rocky meadows
Elevation: 50-100 m

Discussion

Of conservation concern.

The range of morphologic features of Delphinium nuttallii subsp. ochroleucum (D. leucophaeum) is almost completely encompassed within that of D. nuttallii subsp. nuttallii. Sepal color is the only feature consistently separating the two subspecies. Were it not for the fact that any given population typically has plants of only one flower color, a rank of forma would be more appropriate.

Selected References

None.

Lower Taxa

None.

"/" is not declared as a valid unit of measurement for this property.No values specified.

Michael J. Warnock +
(Nuttall) M. J. Warnock +
usually larger +
white +  and yellow or blue +
narrowed +
expanded +
Delphinium menziesii var. (ß) +
straight +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
smaller +
subopposite-subalternate +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
minute +
0 cm0 mm <br />0 m <br /> (?) +  and 0.3 cm3 mm <br />0.003 m <br /> (?) +
globose;cylindric +
roughened +  and smooth +
elongate +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
Light-yellow-flowered larkspur +
50-100 m +
sessile +  and pedicellate +
showy +  and inconspicuous +
1.4 cm14 mm <br />0.014 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
1 cm10 mm <br />0.01 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
sessile +  and aggregate +
curved-cylindric +
Rock outcrops, rocky meadows +
dispersed +
5-25(-40)-flowered +
axillary +  and terminal +
less ovate +  and elliptic +
0.8 cm8 mm <br />0.008 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
2 cm20 mm <br />0.02 m <br /> (8 cm80 mm <br />0.08 m <br />) +
round +  and reniform +
whorled +, opposite +  and alternate +
cauline +  and basal +
reduced +
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 +
white +  and yellow or blue +
incised;toothed;incised;toothed;entire +
smaller +
4 cm40 mm <br />0.04 m <br /> (9 cm90 mm <br />0.09 m <br />) +
1.5 cm15 mm <br />0.015 m <br /> (4 cm40 mm <br />0.04 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
distinct +
conspicuous +
spurred +, funnel--shaped +, cup-shaped +  and plane +
reduced +
0.3 cm3 mm <br />0.003 m <br /> (19 cm190 mm <br />0.19 m <br />) +
Flowering late spring. +
2-100-flowered +
5 cm50 mm <br />0.05 m <br /> (40 cm400 mm <br />0.4 m <br />) +
cormlike +  and fascicled +
7 cm70 mm <br />0.07 m <br /> (16 cm160 mm <br />0.16 m <br />) +
tuberlike +
2 cm20 mm <br />0.02 m <br /> (7 cm70 mm <br />0.07 m <br />) +
succulent +, fleshy +  and fibrous +
wing-margined +
dark-brown +  and black +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.27 cm2.7 mm <br />0.0027 m <br />) +
obpyramidal +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
light yellow;white +
not persistent +
distinct +
3 +  and 6 +
0.3 cm3 mm <br />0.003 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
not +  and veined +
Conservation concern +  and Endemic +
straight +
0.9 cm9 mm <br />0.009 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
60 cm600 mm <br />0.6 m <br /> (90 cm900 mm <br />0.9 m <br />) +
30 cm300 mm <br />0.3 m <br /> (60 cm600 mm <br />0.6 m <br />) +
persistent +
Delphinium leucophaeum +
Delphinium nuttallii subsp. ochroleucum +
Delphinium nuttallii +
subspecies +
0.1 cm1 mm <br />0.001 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0.8 cm8 mm <br />0.008 m <br /> (2.4 cm24 mm <br />0.024 m <br />) +
herbaceous +  and woody +