Duby's violets
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Duby's violets ( Viola dubyana ) |
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| Viola dubyana | ||||||||||||
| Burnat ex Gremli |
Duby's violet ( Viola dubyana ) is a species of the violet ( Viola ) genus .
description
Duby's violet grows as a branched, perennial herbaceous plant and reaches heights of 10 to 25 cm. The above-ground parts of the plant are bald or have short hairs. The lower leaves have a broad, egg-shaped leaf blade with a notched edge. The upper leaves consist of a petiole and a narrow, lanceolate leaf blade. The stipules are almost as long as the deciduous leaves and finger-shaped divided into three to seven narrow, linear sections.
The flowering period extends from May to July. The zygomorphic flowers are 20 to 25 mm in size with a double flower envelope . The sepals are lanceolate with short, rounded appendages. The purple petals are narrow-egg-shaped, the lateral and lower petals have dark spots or lines on the base, the lower petals have a yellow spot. With a length of 5 to 6 mm, the straight spur is half as long as the rest of the petal.
Occurrence
Duby's violet is endemic to the Southern Limestone Alps between Lake Como and Lake Garda . In the subalpine to alpine altitudes , Duby's violets thrive at altitudes between 1000 and 2100 meters in calcareous debris, on poor grassland and in crevices.
supporting documents
- Xaver Finkenzeller, Jürke Grau: Steinbach's natural guide. Part 16: Alpine flowers. Mosaik Verlag, Munich 1985, ISBN 3-570-01349-9 .
