Inntaler primrose
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Inntaler primrose ( Primula daonensis ) |
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| Primula daonensis | ||||||||||||
| Leyb. |
The Inntaler primrose or Inntaler red gland primrose ( Primula daonensis ) is a species of the primrose genus ( Primula ) within the primrose family (Primulaceae). It is closely related to the hairy primrose ( Primula hirsuta ).
description
The Inntaler primrose is a perennial , herbaceous plant and reaches heights of up to 10 centimeters. The aboveground parts of the plant are hairy with glands. The basal leaves are hairy on both sides and, when young, are rolled up towards the top.
The bracts are 1 to 3 millimeters long and ovate. The hermaphrodite flowers are five-fold with a double flower envelope . The corolla is pink to purple in color with a white throat and funnel-shaped spread out, edged corolla lobes. The corolla tube is hairy on its outside glandular.
Differentiating characteristics of the Inntaler primrose compared to the hairy primrose: The Inntaler primrose always has red glands. Their inflorescence stem is usually longer than the leaves. The flower stalks are 2 to 6 millimeters long, the calyx up to 4 millimeters long. The calyx teeth are shorter, up to 1.5 millimeters long and blunt.
The flowering period extends from June to July.
The number of chromosomes is 2n = 62, 63 or 64.
Occurrence
The distribution area extends from south-eastern Graubünden over the Bergamasque Alps via Adamello and Judicaria to the Ortler . In Austria the Inntaler primrose became extinct and was formerly widespread in the Upper Inn Valley and the Paznaun Valley . The Inntaler primrose occurs predominantly in the alpine altitude range , at altitudes from 1600 to 2800 meters. Here this species thrives on acidic soils in crooked sedge lawns, on rubble and in silicate fields.
supporting documents
literature
- Xaver Finkenzeller, Jürke Grau: Alpine flowers. Recognize and determine (= Steinbach's natural guide ). New edited edition. Mosaik, Munich 1996, ISBN 3-576-10558-1 .
Individual evidence
- ^ A b Manfred A. Fischer, Wolfgang Adler, Karl Oswald: Excursion flora for Austria, Liechtenstein and South Tyrol . 2nd, improved and enlarged edition. State of Upper Austria, Biology Center of the Upper Austrian State Museums, Linz 2005, ISBN 3-85474-140-5 .
- ^ Konrad Lauber, Gerhart Wagner: Flora Helvetica. Flora of Switzerland. Verlag Paul Haupt, Bern, Stuttgart, Vienna, 1996, ISBN 3-258-05405-3 , p. 440.
Web links
- Primula daonensis (Leyb.) Leyb. In: Info Flora , the national data and information center for Swiss flora . Retrieved January 16, 2016.