image
Conservation

Compilation of herbal plants (description, geographical distribution, taxonomy, line drawings), biodiversity and herbarium.

Read More
image
Research & Publication

Description of herbal and T&CM research, searchable publication and process from medicinal plant discovery to clinical trial in producing a high-quality registered herbal drug.

Read More
 
Traditional & Complementary Medicine (T&CM)

 

Definition and description of therapies, policy, training and education, research in the practise of (T&CM) and integrated medicine system.           

Read More

 

News Update

Announcement & Advertisement

Forthcoming Events

113th MOH-AMM Scientific Meeting 2019

From Tue, 27. August 2019 Until Thu, 29. August 2019

14 th World Congress on Pharmacology and Toxicology

From Wed, 11. September 2019 Until Thu, 12. September 2019

25th International Coneference on Advanced Clinical Research and Clinical Trials

From Mon, 16. September 2019 Until Tue, 17. September 2019

17th World Congress on Drug Formualtion & Drug Delivery

From Wed, 25. September 2019 Until Thu, 26. September 2019

19th World Congress on Advances in Pharmaceutical Sciences

From Mon, 14. October 2019 Until Tue, 15. October 2019

Oxalis corniculata L.

Oxalis corniculata L.

Family

Oxalidaceae

Synonyms

Oxalis repens Thunb, Oxalis javanica Blume.

Vernacular Names

Malaysia                

Sikap dada (Peninsular).

English

Indian sorrel, creeping wood-sorrel, procumbent yellow sorrel.

Indonesia

Daun asem kecil (Sumatra), calingcing (Sundanese), semangnen (Javanese).

Papua New Guinea

Kokavu (Kami, Eastern Highlands), akler (New Britain).

Philippines

Taingan-daga (Tagalog), marasiksik (Iloko), daraisig (Bikol).

Singapore

Sikap dada.

Myanmar

Hmô-gyin.

Cambodia

Chantoe phnom kok.

Laos

Som ten kalm.

Thailand

Phak waen (Central), som sangka (Chiang Mai), som din (Mae Hong Son).

Vietnam

Me d[aas]t, chua me ba ch[if]a, toan t[uw][ow]ng th[ar]o.

Geographical Distributions

Oxalis corniculata is a cosmopolitan weed of unknown origin, although a southern European origin has been postulated. It occurs throughout Southeast Asia, but is scarce in Peninsular Malaysia, Borneo and Sulawesi.

Description

Oxalis corniculata is a perennial, creeping or ascending small herb, with stems measure up to 50 cm long and rooting at the nodes. The main root is fibrous. In old plants, it sometimes develops into a thickened and woody rootstock. There are several stems from the main root. They are branching and hairy.

The leaves are arranged alternately, digitately 3-foliolate, with petiole 1-5.5(-10) cm long while the stipules are small and measure up to 3 mm long. The leaflets are broadly obcordate to elliptical-obcordate, measuring 4-20(-25) mm x 5-18(-25) mm and hairy to silky beneath.

The inflorescence is cymose to pseudo-umbellate, and with a 1-6(-8)-flowered stalk. There are two to several bracts which are subopposite to whorled. The flowers are bisexual, radially symmetrical, 5-merous, usually homostylous with mid-styled form and rarely with long-styled form. The pedicel is up to 20 mm long, articulate at base and beneath the sepal. The sepals are imbricate, short connate at base, lance-shaped, measuring 2-6 mm x 0.5-2 mm and sparsely hairy to silky. The petals are contorted, coherent above the claw, spoon-shaped-oblong to spoon-shaped-lance-shaped, measuring 3.5-10 mm x 1-7 mm, hairless and yellow. There are 10 stamens with 5 longer and 5 shorter filaments joined at the base. The shorter is rarely with rudimentary anthers. The ovary is superior, 5-celled, with 5 styles and free with small cylindrical stigmas.

The fruit is linear-cylindrical but sometimes ellipsoid. It is a pentagonal capsule, measuring 9-20(-24) mm x 2-4 mm, hairy, green, opening by longitudinal loculicidal slits and many-seeded. The seeds are flattened-ovoid, measure about 1 mm long and red-brown. The seed coat is with about 3 regular rows of 7-10 transversally connected rows of ridges. The aril is bivalved, membranous and white. Seedling is with epigeal germination, with leafy cotyledons, wedge-shaped base and rounded apex. They are hairless. The hypocotyl is elongated while epicotyl is absent. 

Ecology / Cultivation

Oxalis corniculata is a common weed in gardens, fields, grassland, in roadsides, on river banks and on walls, up to 3000 m altitude. It thrives best in warm, moist, freely drained and fertile soils with a pH of 3.5-6.5. It is commonly found in vegetables, groundnut, maize, soya bean and root crops in the Philippines, and is a weed in tea and rice in Indonesia. In temperate regions, O. corniculata is mainly a problem in greenhouses, but sometimes escapes to establish locally outdoor populations. Its prostrate habit helps to protect it from being mowed in lawns.

Line Drawing / Photograph

Oxalis_corniculata

Read More

  1)  Safety

References

  1. Plant Resources of South-East Asia No.12(1): Medicinal and poisonous plants 1.

Explore Further

Consumer Data

Consumer data including medicinal herbs, dietary supplement monographs, health condition monographs and interactions and depletions.                                    

Read More
Professional Data

Professional data organized into medicinal herbs, dietary supplement monographs, health condition monographs, T&CM herbs, formulas, health conditions, interactions and depletions.

Read More
International Data

We offer International linkages to provide extensive content pertaining to many facets of T&CM as well as Integrated Medicine. Please register for access.    

Read More