Oxalis corniculata L.
1907 (1). 0. corniculata L. Sp. Pl. ed. 1 (1753) 435; Boiss., Fl. Or. I (1867) 866; Hayek, Prodr. Fl. Penins. Balc. I (1925) 568; Young, Fl. Eur. II (1968) 192 — Рогчесто киселиче
Fam: Oxalidaceae R. BR.
Genus: Oxalis L.
Species: Oxalis corniculata L.
English Name: Creeping woodsorrel, Procumbent yellow sorrel, Sleeping beatyDescription:
Annuals to perennials. The roots are thin. Stems 5 - 50 cm long, thin, drooping, branched, rounded, with roots through which they take root, fibrous. Stipules small, oblong-auricular, fused at the base of the petiole, fibrous. Leaves trifoliate, 1.5 - 8.0 cm long, fibrous or almost glabrous petioles, successive; leaflets 0.5 - 1.5 cm long, 0.8 - 2.5 cm wide, back heart-shaped, almost sessile, fibrous on the edge, glabrous above, just fibrous below. Flowers 2 - 7, in umbell-like inflorescences. Inflorescence petioles 2.5 - 6.0 cm long, simple fitting fibrous, protruding from the axils of the leaves. Bracts 2.0 - 3.5 mm long, lance or awl-similar lance, fibrous. Flower petioles 1.0 - 1.5 cm long, simple fitting fibrous, with the fruit curved downwards. Sepals 3 - 5 mm long, 0.8 - 1.0 mm wide, twice as short as the petals, lance, obtuse, fibrous. Petals 6 - 10 mm long, 1.5: - 2.0 mm wide, back ovate, yellow. Stamens with fused petioles and oblong anthers. The box is 10 - 25 mm long, cylindrical, narrowed and pointed at the top, densely short, simply fibrous. Seeds 1.7 - 2.0 mm long, ovoid, flat, brown, with transverse ribs. Annual to perennial plants. The roots are thin. Stems 5 - 50 cm long, thin, drooping, branched, rounded, with roots through which they take root, fibrous. Stipules small, oblong-auricular, fused at the base of the petiole, fibrous. Leaves trifoliate, 1.5 - 8.0 cm long, fibrous or almost glabrous stalks, consecutive; leaflets 0.5 - 1.5 cm long, 0.8 - 2.5 cm wide, back heart-shaped, almost sessile, fibrous on the edge, glabrous above, just fibrous below. Flowers 2 - 7, in umbell-similar inflorescences. Inflorescence petioles 2.5 - 6.0 cm long, simple fitting fibrous, protruding from the axils of the leaves. Bracts 2.0 - 3.5 mm long, lance or acuminate lance, fibrous. Flower petioles 1.0 - 1.5 cm long, simple fittin fibrous, with the fruit curved downwards. Sepals 3 - 5 mm long, 0.8 - 1.0 mm wide, twice as short as the petals, lance, obtuse, fibrous. Petals 6 - 10 mm long, 1.5: - 2.0 mm wide, back ovate, yellow. Stamens with fused stems and oblong anthers. The box is 10 - 25 mm long, cylindrical, narrowed and pointed at the top, densely short, simply fibrous. Seeds 1.7 - 2.0 mm long, ovoid, flat, brown, with transverse ribs.
It is grown in parks and gardens as an ornamental.
From: „Флора на Н. Р. България”, том VII, БАН, София, (1979)
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Oxalis corniculata, the creeping woodsorrel, also called procumbent yellow sorrel[2] or sleeping beauty, resembles the common yellow woodsorrel, Oxalis stricta. It is a somewhat delicate-appearing, low-growing, herbaceous plant in the family Oxalidaceae.Description
It has a narrow, creeping stem that readily roots at the nodes. The trifoliate leaves are subdivided into three rounded leaflets and resemble a clover in shape. Some varieties have green leaves, while others, like Oxalis corniculata var. atropurpurea, have purple. The leaves have inconspicuous stipules at the base of each petiole.
The fruit is a narrow, cylindrical capsule, 1–2 cm (0.4–0.8 in) long, and noteworthy for its explosive discharge of the contained seeds, 1 mm (0.04 in) long. Pollen is about 34 microns in diameter.Distribution
This species probably comes from southeastern Asia.[3] It was first described by Linnaeus in 1753[4] using specimens from Italy, and it seems to have been introduced to Italy from the east before 1500.[3] It is now cosmopolitan in its distribution and is regarded as a weed in gardens,[5] agricultural fields, and lawns.[6]
Uses
The leaves of woodsorrel are quite edible, with a tangy taste of lemons. A drink can be made by infusing the leaves in hot water for about 10 minutes, sweetening and then chilling.[7] The entire plant is rich in vitamin C. Any woodsorrel is safe in low dosages, but if eaten in large quantities over a length of time can inhibit calcium absorption by the body.[7]
As a hyperaccumulator of copper, it can be used for phytoremediation. The 1491 Ming Dynasty text, Precious Secrets of the Realm of the King of Xin, describes how to locate underground copper deposits by extracting trace elements of copper from the plant.
From Wikipedia, the free encyclopedia
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Flowering Time: Blooms: V - VIII, fruitful: VII - IX.
Distribution in Bulgaria: They are growing in dry grassy, stony and sandy places, often like weeds. Black Sea coast, Northeastern Bulgaria, Danube plain, Fore-Balkan, Stara Planina, Sofia region, Struma valley, Rhodopes, Thracian lowland, Tundzha hilly plain, Strandzha, from sea level to 1000 m altitude. (Conspectus of the Bulgarian Vascular Flora) = conspectus&gs_l= Zlc.Distribution: Central and Southern Europe, Asia.
Conservation status and threats: not protected species in Bulgaria by the Biodiversity Law. - Biological Diversity Act - http://eea.government.bg/bg/legislation/biodiversity/zbran_22.08.15.pdf
Medical plant: no, it is not - Medicinal Plants Act - http://eea.government.bg/bg/legislation/biodiversity/ZLR_en.pdf
References: „Флора на Н. Р. България”, том VII, БАН, София, (1979), Wikipedia, the free encyclopedia
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