Delphinium bicolor subsp. calcicola

M. J. Warnock & Vanderhorst in M. J. Warnock

Phytologia 78: 90. 1995.

Endemic
Treatment appears in FNA Volume 3.
Revision as of 19:33, 26 July 2019 by FNA>Volume Importer
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Flowers: sepals bright dark blue, lateral sepals 16-21 × 9-12 mm, spurs 15-23 mm; lower petal blades with cleft 2 mm or more; hairs usually yellow.


Phenology: Flowering late spring–early summer.
Habitat: Rocky soils in shortgrass prairie and sagebrush communities on limestone outcrops
Elevation: 1300-2100 m

Distribution

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Mont.

Discussion

In the field, Delphinium bicolor subsp. calcicola is readily separated from D. bicolor subsp. bicolor on the basis of its brighter colored, slightly larger flowers and its edaphic preference. Delphinium bicolor subsp. calcicola usually flowers somewhat later where the two are sympatric. These differences are often not apparent from herbarium specimens. Specimens of this taxon misidentified as D. geyeri account for most reports of that species from Montana.

Selected References

None.

Lower Taxa

None.
Michael J. Warnock +
M. J. Warnock & Vanderhorst in M. J. Warnock +
Delphinium sect. Bicoloria +
1300-2100 m +
Rocky soils in shortgrass prairie and sagebrush communities on limestone outcrops +
Flowering late spring–early summer. +
Delphinium bicolor subsp. calcicola +
Delphinium bicolor +
subspecies +