Swiss Lotwurz
| Swiss Lotwurz | ||||||||||||
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Swiss Lotwurz ( Onosma helvetica ) |
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| Onosma helvetica | ||||||||||||
| ( A.DC. ) Boiss. |
The Swiss Lotwurz ( Onosma helvetica ), also called Swiss Lotwurz , is a plant species from the genus of the Lotwurzen ( Onosma ) in the family of the predatory plants (Boraginaceae).
description
Vegetative characteristics
The Swiss Lotwurz is a perennial herbaceous plant . It usually forms non-blooming leaf rosettes and some flower-bearing stems . The latter reach heights of growth of 20 to 50 centimeters, are unbranched or branched up to six times at the tip and are finely haired with 2 to 3 millimeter long bristles. The bristles are usually star-shaped and provided with rays that are about 0.1 millimeters long. The lower leaves are 30 to 70 millimeters long and (rarely only 2 to) 4 to 6 millimeters wide, elongated spatulate and downy hairy and hairy with 1.5 to 2 millimeters long and 0.1 to 0.3 millimeter long rays star-shaped bristles .
Generative characteristics
The flower stalks are 0 to 2 millimeters long. The bracts are shorter than the calyx .
The hermaphrodite flowers are five-fold with a double flower envelope . The calyx is 9 to 12 millimeters long at the anthesis (rarely only 8 to), enlarges on the fruit to up to 17 millimeters and is covered with star-shaped bristles. The crown is 18 to 20 millimeters long, pale yellow and sparsely hairy.
The partial fruits are about 2 to 4 millimeters long, smooth nuts .
Occurrence
The Swiss Lotwurz occurs from northern Italy and France to Switzerland . The other specified occurrences in Austria, Slovakia , Romania and Northern Greece belong to Onosma helvetica subsp. fallax , which is a subspecies of Onosma pseudoarenaria .
Taxonomy
It was first published in 1846 as the variety Onosma echioides var. Helvetica by Alphonse Louis Pierre Pyramus de Candolle . The rank of a species Onosma helvetica (A.DC.) Boiss. received it in 1849 from Pierre Edmond Boissier . Other synonyms for Onosma helvetica (A.DC.) Boiss. are: Onosma vaudensis Gremli , Onosma pennina (Braun-Blanq.) Binz , Onosma arenaria subsp. Pennina Braun-Blanq. , Onosma echioides subsp. vaudensis (Gremli) Brown-Blanq. , Onosma fastigiata subsp. vaudensis (Gremli) straw , Onosma helvetica subsp. vaudensis (Gremli) Breistr. , Onosma arenaria subsp. vaudensis (Gremli) Kerguélen .
Individual evidence
- ↑ a b c d TG Tutin, VH Heywood, NA Burges, DM Moore, DH Valentine, SM Walters, DA Webb (eds.): Flora Europaea . Volume 3: Diapensiaceae to Myoporaceae . Cambridge University Press, Cambridge 1972, ISBN 0-521-08489-X , pp. 89 (English, limited preview in Google Book Search).
- ↑ a b Benito Valdés, 2011: Boraginaceae. : Data sheet Onosma helvetica In: Euro + Med Plantbase - the information resource for Euro-Mediterranean plant diversity.
literature
- TG Tutin, VH Heywood, NA Burges, DM Moore, DH Valentine, SM Walters, DA Webb (Eds.): Flora Europaea . Volume 3: Diapensiaceae to Myoporaceae . Cambridge University Press, Cambridge 1972, ISBN 0-521-08489-X , pp. 89 (English, limited preview in Google Book Search).
- Manfred A. Fischer, Karl Oswald, Wolfgang Adler: Excursion flora for Austria, Liechtenstein and South Tyrol . 3rd, improved edition. Province of Upper Austria, Biology Center of the Upper Austrian State Museums, Linz 2008, ISBN 978-3-85474-187-9 , p. 691 .
Web links
- Onosma helvetica (A. DC.) Boiss. In: Info Flora , the national data and information center for Swiss flora . Retrieved February 7, 2016.
- Data sheet with photo and distribution in France at Tela Botanica .