Genus Oxalis L.
Род. 461. КИСЕЛИЧЕ — OXALIS L.
L., Sp. Pi. ed. 1 (1753) 134; Gen. Pl. ed. 5 (1754) 198Fam: Oxalidaceae R. BR.
Genus: Oxalis L.
English Name: Wood sorrelDescription:
Perennial or annual herbaceous plants, sometimes with tuberous thickened roots, with or without aboveground stems. Leaves with or without stipules, successive, opposite or in rosettes, complex, usually three-, four-, rarely more lobed; leaflets usually concave at the top, the rest entire. Flowers regular, often heterosgilli, single or in umbella-similar inflorescences. Sepals 5, free, preserved at the fetus. Petals 5, free or slightly fused at the base, white, yellow, pink, red or purple. Stamens 10, with fused at the base petioles. The pistil of 5 carpels, with an upper 5-nested ovary. Columns 5, with glabrous stigmas. The fruit is an oblong or ovoid, 5-nested, 5-walled box. The seeds are ovoid or oval, with longitudinal or transverse ribs, with a fleshy shell that dissolves elastically and eject the seeds from the box.
Economic significance. The leaves are rich in oxalic acid and vitamin C. They are used for spices, soft drinks, in folk medicine, as decorative. They are not grazed by animals.
Table for determination of the species
1 Plants with well-developed above-ground stems ........................................................................................................... 2
1* Plants without above-ground stems or stems considerably shortened …………...........................................…………... 3
2 Leaves successive, with stipules ..................................................................................................... 1. - 0. corniculata L.
2* Leaves almost opposite, without stipules ……………............................................………………. - 0. europaea Jordan
3 The roots are not thickened. Colors single, white ............................................................................... 2. - 0. acetosella L.
3* The roots are tuberously thickened. The flowers are several in inflorescences, pink, yellow or copper-red ......................... 4
4 Inflorescence petioles shorter than the leaves. The flowers are yellow ……...…….............………… * - 0. cernua Thunb.
4* Inflorescence petioles longer than the leaves. The flowers are pink or copper-red .............................................................. 5
5 Leaf sections 3, green. The flowers are pink .......................................................................................... * - 0. purpurea L.
5* Leaf shares 4, with a brown zigzag line in the lower half. The flowers are copper red ..……. * - 0. deppei Lodd. ex Sweet.
¹ Developed by A. Petrova.From: „Флора на Н. Р. България”, том VII, БАН, София, (1979) * * * * *
Oxalis /ˈɒksəlɪs/ (American English)[1] or /ɒksˈɑːlɪs/ (British English)[2] is a large genus of flowering plants in the wood-sorrel family Oxalidaceae, comprising about 570 species.[3] The genus occurs throughout most of the world, except for the polar areas; species diversity is particularly rich in tropical Brazil, Mexico and South Africa.
Many of the species are known as wood sorrels (sometimes written "woodsorrels" or "wood-sorrels") as they have an acidic taste reminiscent of the sorrel proper (Rumex acetosa), which is only distantly related. Some species are called yellow sorrels or pink sorrels after the color of their flowers instead. Other species are colloquially known as false shamrocks, and some called sourgrasses. For the genus as a whole, the term oxalises is also used.
From Wikipedia, the free encyclopedia
* * * * *
Distribution in Bulgaria: (Conspectus of the Bulgarian Vascular Flora) = conspectus&gs_l= Zlc.
Distribution:
References: „Флора на Н. Р. България”, том VII, БАН, София, (1979), Wikipedia, the free encyclopedia
SPECIES:
Oxalis acetosella L. - Wood sorrel, Common wood sorrel
Oxalis corniculata L. - Creeping woodsorrel, Procumbent yellow sorrel, Sleeping beaty
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