Oxalis triangularis
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| A.St.-Hil. |
Oxalis triangular , also known as red clover or triangular, is a plant from the genus sorrel ( Oxalis ) in the family of Oxalidaceae (Oxalidaceae).
description
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Vegetative characteristics
Oxalis triangularis grows as a perennial herbaceous plant and reaches heights of 10 to 25 cm during the flowering period. Except for the sparsely hairy underside of the leaves, all vegetative parts of the plant above ground are bare. The approximately 5 cm long and 7 mm thick rhizome has a roof-tile-like, flaky structure.
The mostly four to nine leaves , arranged in basal rosettes , are divided into a petiole and a leaf blade. The petiole is 10 to 15 cm long. The imparipinnate leaf blade consists of three leaflets. The pale green leaflets in the natural form are up to 2.5 cm in length and are inverted triangular and twice as wide and only slightly or not notched at the tip.
Generative characteristics
The one to four inflorescence shafts per leaf rosette are 10 to 15 cm long. Three to seven flowers are grouped together in a simple, dold-like inflorescence . The flower stalk is 2 to 4 cm long.
The hermaphroditic flowers are radial symmetry and five-fold with a double flower envelope . The five densely hairy sepals are 5 to 5.5 mm long, narrow and slightly reddish at the tip. The five white petals are about 2 cm long and oblong-lanceolate. The stamens and the stylus are densely hairy.
The almost bald capsule fruit is columnar and contains numerous seeds in each fruit compartment.
Chromosome number
The chromosome number for Oxalis triangularis subsp. triangularis and for Oxalis triangularis subsp. papilionacea each 2n = 28.
distribution
The original range of Oxalis triangularis is in South America , Argentina, Bolivia, Brazil and Paraguay. For example, Oxalis triangularis is a neophyte in Florida and Louisiana in the United States .
use
Oxalis triangularis is used as an ornamental plant. The ornamental forms often have red leaves on both sides and are known, for example, as triangular lucky clover or red triangular clover .
The leaves are eaten raw or cooked and have a sour taste due to their oxalic acid content. Leaves and flowers can be used as a decoration for salads; if you consume large quantities of the leaves, the oxalic acid can cause discomfort. The rhizomes are eaten raw or cooked and have a sweet taste.
Systematics
The first description of Oxalis triangularis was made in 1825 by Augustin Saint-Hilaire in Flora Brasiliae Meridionalis , 4th Edition, 1, p 102. synonyms for Oxalis triangularis A.St.-Hil. are: Oxalis corumbaensis Hoehne , Oxalis glaberrima Norlind , Oxalis papilionacea Hoffmanns. ex Zucc. , Oxalis regnellii Miq. , Oxalis tenuiscaposa R.Knuth , Oxalis venturiana R.Knuth , Oxalis vernal Fredr. ex Norlind , Oxalis yapacaniensis (Kuntze) K.Schum. , Acetosella yapacaniensis Kuntze .
About two accepted subspecies are known:
- Oxalis triangularis subsp. papilionacea (Hoffm. ex Zucc.) Lourteig
- Oxalis triangularis A.St.-Hil. subsp. triangularis
Individual evidence
- ↑ a b c d e Flora of Peru (Volume 2) . In: J. Francis Macbride (Ed.): Botanical Series . tape III , no. 2 . Publication (Field Museum of Natural History), Chicago 1949, pp. 83–84 (English, Oxalis regnellii - full text ). Oxalis regnellii - Full text (English) ( Memento of the original from March 4, 2016 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice.
- ^ Oxalis triangularis at Tropicos.org. In: IPCN Chromosome Reports . Missouri Botanical Garden, St. Louis
- ↑ Guy L. Nesom: Taxonomic notes on acaulescent Oxalis (Oxalidaceae) in the United States. In: Phytologia , Volume 91, Issue 3, December 2009. ( PDF ; PDF file; 167 kB)
- ^ Oxalis triangularis at Plants For A Future
- ^ Oxalis triangularis at Tropicos.org. Missouri Botanical Garden, St. Louis
- ↑ MC de Abreu, P. Fiaschi: Oxalidaceae in Lista de Espécies da Flora do Brasil. Jardim Botânico do Rio de Janeiro, 2010. Online.
Web links
- Oxalis triangularis at Tropicos.org. In: Peru Checklist . Missouri Botanical Garden, St. Louis
- Oxalis triangularis at Tropicos.org. In: Bolivia Checklist . Missouri Botanical Garden, St. Louis
- Oxalis triangularis at Tropicos.org. In: IPCN Chromosome Reports . Missouri Botanical Garden, St. Louis