Kirengeshoma
| Kirengeshoma | ||||||||||||
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Kirengeshoma palmata |
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| Scientific name | ||||||||||||
| Kirengeshoma | ||||||||||||
| Yatabe |
Kirengeshoma is a plant kind from the family of hydrangeaceae (Hydrangeaceae) and the mock orange plants (Philadelphaceae). The genus includes two species that are native to East Asia.
description
The species of the genus are perennial, herbaceous plants that grow from a rhizome. The stalked, opposite leaves are palmately lobed and serrated on the edge.
The inflorescences are zymous panicles . There are no sterile flowers. The five sepals are clasped next to each other, the calyx tube protrudes far out. The five petals twisted (contort) in the bud position are spatulate and creamy white to yellow.
The stamens of the 15 or so stamens are awl-shaped, the stylodes are not grown. The medium-sized ovary is three to vierfächrig, the ovules hanging. The fruit is a capsule that opens at the base of the petals in a crevice and folds in the walls to release the numerous, 4 to 10 millimeter long, laterally flattened and winged seeds.
The chromosome numbers are 2n = 52 and 54, respectively.
distribution
The species of the genus are native to East Asia (Japan, Korea, China) and are found there in mountain forests.
Botanical history and systematics
The genus was first described by Ryôkichi Yatabe in 1890 , the type species is Kirengeshoma palmata . Within the family it is placed in the subfamily Hydrangeoideae and there in the tribe Philadelpheae.
The genus includes two types:
- Japanese wax bell ( Kirengeshoma palmata Yatabe )
- Kirengeshoma koreana Nakai : It was first described from Korea.
Some authors put Kirengeshoma koreana also to Kirengeshoma palmata .
proof
- L. Hufford: Hydrangeaceae. In: Klaus Kubitzki (Ed.): The Families and Genera of Vascular Plants - Volume VI - Flowering Plants - Dicotyledons - Celastrales, Oxalidales, Rosales, Cornales, Ericales , 2004, p. 211, ISBN 978-3-540-06512- 8th
Individual evidence
- ^ Eckehart J. Jäger, Friedrich Ebel, Peter Hanelt, Gerd K. Müller (eds.): Rothmaler Exkursionsflora von Deutschland. Volume 5: Herbaceous ornamental and useful plants . Spectrum Academic Publishing House, Berlin Heidelberg 2008, ISBN 978-3-8274-0918-8 . Page 325
