Delphinium alabamicum

Kral

Sida 6: 250. 1976.

Common names: Alabama larkspur
Conservation concernEndemic
Treatment appears in FNA Volume 3.

Stems (45-) 60-90 (-130) cm; base reddish, pubescent. Leaves mostly basal; basal leaves 2-6 at anthesis; cauline leaves 1-4 at anthesis; petiole 0.5-22 cm. Leaf-blade reniform to semicircular, 2-11 × 3-19 cm, nearly glabrous; ultimate lobes 3-35, width 3-8 mm (basal), 0.5-3 mm (cauline), widest at middle or in proximal 1/2. Inflorescences 5-27-flowered; pedicel 1-5 cm, puberulent; bracteoles 3-12 mm from flowers, green, linear, 2-8 mm, puberulent. Flowers: sepals royal blue, ± drab, often partly fading upon drying, puberulent, lateral sepals spreading, 12-20 × 5-10 mm, spurs straight, horizontal to slightly ascending, (13-) 15-16.5 (-19) mm; lower petal blades ± covering reproductive parts, 4-10 mm, clefts 3-5 mm; hairs centered between claw and base of cleft, covering most of adaxial surface, white. Fruits 11-18 mm, 2.5-3 times longer than wide, sparsely puberulent. Seeds unwinged; surface of each seed-coat cell with with swollen, blunt, hairlike structures, barely visible at 20×, otherwise smooth. 2n = 16.


Phenology: Flowering mid-late spring.
Habitat: Very local, thin soils in and on edges of Juniperus glades on limestone substrates
Elevation: 100-300 m

Discussion

Of conservation concern.

In addition to the Alabama sites, Delphinium alabamicum is known from one population in Georgia; it might have been transplanted there. Delphinium alabamicum has not been seen in central Alabama since 1950; populations there might have been extirpated.

Selected References

None.

Lower Taxa

None.

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

... more about "Delphinium alabamicum"
Michael J. Warnock +
usually larger +
narrowed +
expanded +
Delphinium sect. Grumosa +
straight +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
smaller +
subopposite-subalternate +
0.3 cm3 mm <br />0.003 m <br /> (1.2 cm12 mm <br />0.012 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 +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Alabama larkspur +
Ala. +  and Ga. +
100-300 m +
sessile +  and pedicellate +
showy +  and inconspicuous +
1.1 cm11 mm <br />0.011 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
sessile +  and aggregate +
curved-cylindric +
Very local, thin soils in and on edges of Juniperus glades on limestone substrates +
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 /> (11 cm110 mm <br />0.11 m <br />) +
reniform +  and semicircular +
whorled +, opposite +  and alternate +
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 +
incised;toothed;incised;toothed;entire +
smaller +
1 cm10 mm <br />0.01 m <br /> (5 cm50 mm <br />0.05 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (1 cm10 mm <br />0.01 m <br />) +
distinct +
conspicuous +
spurred +, funnel--shaped +, cup-shaped +  and plane +
reduced +
0.5 cm5 mm <br />0.005 m <br /> (22 cm220 mm <br />0.22 m <br />) +
Flowering mid-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 +
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 />) +
fading;royal blue +
not persistent +
distinct +
3 +  and 6 +
0.5 cm5 mm <br />0.005 m <br /> (1 cm10 mm <br />0.01 m <br />) +
not +  and veined +
Conservation concern +  and Endemic +
1.65 cm16.5 mm <br />0.0165 m <br /> (1.9 cm19 mm <br />0.019 m <br />) +
straight +
horizontal +  and slightly ascending +
1.5 cm15 mm <br />0.015 m <br /> (1.65 cm16.5 mm <br />0.0165 m <br />) +
90 cm900 mm <br />0.9 m <br /> (130 cm1,300 mm <br />1.3 m <br />) +
60 cm600 mm <br />0.6 m <br /> (90 cm900 mm <br />0.9 m <br />) +
hairlike +, blunt +  and swollen +
persistent +
Delphinium alabamicum +
Delphinium subsect. Grumosa +
species +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
0.8 cm8 mm <br />0.008 m <br /> (2.4 cm24 mm <br />0.024 m <br />) +
herbaceous +  and woody +