Delphinium exaltatum

Aiton

Hort. Kew. 2: 244. 1789.

Common names: Tall larkspur
EndemicIllustrated
Treatment appears in FNA Volume 3.

Stems 70-200 cm; base reddish, nearly glabrous. Leaves cauline, 7-24, absent from proximal 1/5 of stem at anthesis; petiole 1-15 cm. Leaf blade pentagonal, 2-7 × 3-9 cm, puberulent; ultimate lobes 3-7, width 5-25 mm; midcauline leaf lobes less than 3 times longer than wide. Inflorescences 8-30-flowered; pedicel 0.5-2 cm, puberulent; bracteoles 2-4 mm from flowers, green, linear, 2-4 mm, puberulent. Flowers: sepals whitish to pale lavender or purple, puberulent, lateral sepals forward pointing, 9-11 × 4-6 mm, spurs straight, as much as 45° above or below horizontal, 9-12 mm; lower petal blades ± covering stamens, 3-5 mm, clefts 1-2 mm; hairs centered, mostly near base of cleft, white. Fruits 7-12 mm, 2-2.5 times longer than wide, ± puberulent. Seeds ± wing-margined; seed coat cells elongate, surfaces smooth.


Phenology: Flowering summer.
Habitat: Rocky slopes in open deciduous woods and barrens, mainly on calcareous substrates, also shale and mafic and ultramafic rocks
Elevation: 150-2000 m

Distribution

V3 350-distribution-map.gif

Ala., Ky., Md., Mo., N.C., Ohio, Pa., Tenn., Va., W.Va.

Discussion

Selected References

None.

Lower Taxa

None.
... more about "Delphinium exaltatum"
Michael J. Warnock +
Tall larkspur +
Ala. +, Ky. +, Md. +, Mo. +, N.C. +, Ohio +, Pa. +, Tenn. +, Va. +  and W.Va. +
150-2000 m +
Rocky slopes in open deciduous woods and barrens, mainly on calcareous substrates, also shale and mafic and ultramafic rocks +
Flowering summer. +
Endemic +  and Illustrated +
Delphinium exaltatum +
Delphinium subsect. Exaltata +
species +