Parochetus
| Parochetus | ||||||||||||
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Parochetus communis |
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| Scientific name | ||||||||||||
| Parochetus | ||||||||||||
| Buch.-Ham. ex D.Don |
Parochetus is a genus in the subfamily of Schmetterlingsblütler (Faboideae) within the family of the Leguminosae (Fabaceae). It contains only two species that are native to Africa and Asia.
description
The two Parochetus species are perennial herbaceous plants . The stems are prostrate to ascending. They sometimes take root at the nodes and sometimes form tubers.
The alternate and spirally arranged leaves on the stem are long-stalked and tripartite. They have entire to serrated leaflets that are inverted heart-shaped with a narrow to broad wedge-shaped base. The two stipules are free or fused with the petioles.
The inflorescence stems are erect or bent back when the fruit is ripe. The flowers stand individually up to three in lateral, dold-like inflorescences . The flower stalks stand above the bracts. The hermaphrodite flowers are zygomorphic and five-fold. Of the five fused sepals , the two upper ones are fused almost over their entire length. The five mostly blue, rarely white petals are not fused with the stamens. The obovate to elongated flag is nailed. The two wings are crescent-shaped, elongated and eyed. The broad triangular-sickle-shaped boat is shorter than the wings. There are ten stamens . The single hairless carpel contains many ovules .
The elongated egg-shaped legume is longer than the calyx and contains many seeds. The brown, kidney-shaped seeds are often spotted and have a small, round hilum on the side.
distribution
Parochetus africanus is found in eastern Africa ( Zambia , Burundi , Republic of the Congo , Kenya , Rwanda , Tanzania , Uganda and Ethiopia ), Parochetus communis in central and southern Asia ( Bhutan , Nepal , India , Sri Lanka , northern Thailand , Malaysia , Myanmar , China and Vietnam ).
Systematics and botanical history
The genus Parochetus belongs to the tribe Trifolieae in the subfamily of the Faboideae . It was first described by Francis Buchanan-Hamilton in 1825 , the type species is Parochetus communis . The botanical genus name Parochetus is made up of the Greek words para for besides and ochetós for "ditch, gutter, channel", which Buchanan-Hamilton did not mention.
The genus Parochetus includes only two species:
- Parochetus africanus Polhill
- Parochetus communis Buch.-Ham. ex D. Don . This species is sometimes called blue oxalis, butterfly clover or blue clover and is occasionally used as a ground cover ornamental plant. The number of chromosomes is 2n = 16.
swell
- Zhi Wei & Michael A. Vincent: Trifolieae in the Flora of China , Volume 10, 2010, 557: Parochetus - Online. (Section description, distribution and systematics)
Individual evidence
- ↑ Helmut Genaust: Etymological dictionary of botanical plant names. 3rd, completely revised and expanded edition. Birkhäuser, Basel / Boston / Berlin 1996, ISBN 3-7643-2390-6 , p. 460.
- ↑ Enter "International Legume Database & Information Service" ILDIS - Trigonella in the search mask.
- ↑ Parochetus communis at Tropicos.org. In: IPCN Chromosome Reports . Missouri Botanical Garden, St. Louis
