Rose verbena
| Rose verbena | ||||||||||||
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Rose verbena ( Glandularia canadensis ) |
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| Scientific name | ||||||||||||
| Glandularia canadensis | ||||||||||||
| ( L. ) Nutt. |
The Rose verbena ( Glandularia canadensis ) is a plant of the genus Glandularia , formerly belonged to the genus Verbena , in the family of iron herb plants (Verbenaceae).
features
The rose verbena is a perennial herbaceous plant that reaches heights of 20 to 40 centimeters. The hairy stem is square. The opposite leaves are hairy. The approximately 3 cm long and wide leaf blade is irregularly toothed, lobed, pinnate or pinnate. The wide petiole is up to 3 cm long.
Terminal inflorescences are formed. The hairy bracts are 9 mm long, 2 mm wide and thus usually shorter than the calyx. The hermaphrodite flowers are fivefold. The five wire-haired and glandular-haired sepals are fused tubular. The calyx tube has a length of 8 mm and a diameter of 1.5 mm; it ends in uneven purple calyx lobes that are about 2 mm long. The five petals are fused Roehrig; the corolla tube is about 2 cm long. The corolla lobes are 9 mm long and 2 mm wide. The crown has a diameter of 10 to 15 millimeters. There is only a circle with four stamens that are fused with the corolla tube near its center and do not protrude from it. The smooth, white stamens up to 1 mm long. The greenish anthers are 7 mm long. The green, smooth ovary is four-lobed and 7 mm long. The smooth greenish-white stylus is up to 1.7 cm long, does not protrude from the corolla tube and ends in an unequal two-lobed scar. The flowering period extends from July to October.
Occurrence
The rose verbena is found in the central and eastern United States on rocky and sandy locations, as well as on the prairie.
use
The rose verbena is used as an ornamental plant in summer borders. It has been in culture since 1774 at the latest. There are several varieties.
Synonyms
For Glandularia canadensis ( L. ) Nutt. there are some synonyms , not only because the Glandularia species were separated from the genus Verbena : Glandularia drummondii (Lindl.) Small , Glandularia lambertii (Sims) Small , Verbena canadensis (L.) Britton , Verbena canadensis var. atroviolacea Dermen , Verbena canadensis var. compacta Dermen , Verbena canadensis var. drummondii (Lindl.) EMBaxter , Verbena canadensis var. grandiflora (JNHaage & Schmidt) Moldenke , Verbena canadensis var. lambertii (Sims) Thell. , Verbena lambertii Sims , Verbena × oklahomensis Moldenke .
supporting documents
literature
- Eckehart J. Jäger, Friedrich Ebel, Peter Hanelt, Gerd K. Müller (eds.): Rothmaler excursion flora from Germany. Volume 5: Herbaceous ornamental and useful plants . Spectrum Academic Publishing House, Berlin Heidelberg 2008, ISBN 978-3-8274-0918-8 .
Individual evidence
- ↑ Rafaël Govaerts (ed.): Verbena canadensis. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Retrieved June 5, 2020.
Web links
- Wanted poster from USDA with pictures and valid names. (engl.)
- Description and pictures under the old name at www.missouriplants.com
