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Species
Oxalis corniculata var. viscidula Wieg.
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Distribucion en Costa Rica: Cordilleras de Guanacaste, de Tilarán, Volcánica Central y de Talamanca, Valle Central, en elevaciones de 800 a 1.850 m.
Distribucion General: De México a Bolivia y en Las Antillas.
Holotype for Oxalis trinidadensis R. Knuth
Catalog Number: US 1046900
Collection: Smithsonian Institution, National Museum of Natural History, Department of Botany
Verification Degree: Card file verified by examination of alleged type specimen
Preparation: Pressed specimen
Collector(s): N. L. Britton
Year Collected: 1920
Locality: Aripo Savanna., Trinidad, Trinidad and Tobago, West Indies
- Holotype: Knuth, R. G. P. 1927. Repert. Spec. Nov. Regni Veg. 23: 276.
License | http://creativecommons.org/licenses/by/3.0/ |
Rights holder/Author | This image was obtained from the Smithsonian Institution. Unless otherwise noted, this image or its contents may be protected by international copyright laws. |
Source | http://collections.mnh.si.edu/search/botany/?irn=2075485 |
Common in suitable habitats
This species is used medicinally.
This highly successful weedy species is so widespread, particularly in areas disturbed by humans, that its origin is unknown. It has been reported from China in additional provinces, such as Heilongjiang, Jilin, Ningxia, and Xinjiang, where it is likely a weed in protected locations, such as in greenhouses. The most frequently encountered variety in China is Oxalis corniculata var. villosa (M. Bieberstein) Hohenacker, but this variety is often under-recorded due to the glabrescent nature of the adaxial surface of the leaves. Oxalis corniculata var. villosa has leaflet blades covered with trichomes all over the abaxial surface, whereas for var. corniculata the abaxial surface has trichomes only on the midrib of the terminal leaflet and the basal half of the lateral leaflets. Plants with leaves, and to a lesser extent all vegetative parts, suffused purplish red are Oxalis corniculata var. atropurpurea Planchon. The purple coloration is conspicuous in plants from exposed sunny habitats but is much less prominent in shaded plants and fades on drying, making confident determination of old herbarium specimens difficult. Determination of the exact distribution of these varieties in China needs additional study.
Synonyms of Oxalis corniculata var. villosa include: Oxalis villosa M. Bieberstein, Fl. Taur.-Caucas. 1: 355. 1808; Acetosella corniculata var. villosa (M. Bieberstein) Kuntze; ?O. corniculata f. maritima Masamune; O. corniculata var. sericea Knuth; O. corniculata var. trichocaulon H. Léveillé; O. corniculata f. villosa (M. Bieberstein) Goiran; ?O. corniculata var. viscidula Wiegand; O. langloisii (Small) Fedde; O. thunbergiana Montrousier; Xanthoxalis langloisii Small. Synonyms of Oxalis corniculata var. atropurpurea include: Oxalis corniculata f. purpurea (Parlatore) Knuth; O. corniculata var. purpurea Parlatore; O. tropaeoloides Schlachter ex Planchon; Xanthoxalis corniculata f. atropurpurea (Planchon) Nakai; X. corniculata var. atropurpurea (Planchon) Moldenke; X. corniculata f. purpurea (Parlatore) Nakai.
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Rights holder/Author | eFloras.org Copyright © Missouri Botanical Garden |
Source | http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=200012375 |
Annual herb, without bulbs. Stems procumbent or ascending, less often erect, often rooting at the nodes, with spreading hairs. Leaflets: lamina 3-15 × 5-20 mm, obcordate-cuneate, pubescent; apex deeply emarginate. Flowers yellow, in 1-6-flowered bracteate pseudumbels. Petals 8-10 mm. Capsule exserted, cylindric, ± 5-angled.
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Isotype for Oxalis norlindiana R. Knuth
Catalog Number: US 1284887
Collection: Smithsonian Institution, National Museum of Natural History, Department of Botany
Verification Degree: Original publication and alleged type specimen examined
Preparation: Pressed specimen
Collector(s): O. Heilborn & I. A. Holmgren
Year Collected: 1920
Locality: Guapulo near Machangara., Ecuador, South America
- Isotype: Knuth, R. G. P. 1926. Repert. Spec. Nov. Regni Veg. 23: 279.
License | http://creativecommons.org/licenses/by/3.0/ |
Rights holder/Author | This image was obtained from the Smithsonian Institution. Unless otherwise noted, this image or its contents may be protected by international copyright laws. |
Source | http://collections.mnh.si.edu/search/botany/?irn=2080722 |
Flowering and fruiting: March-December
A very variable species in form and size. Common during the spring season from the plains to 2700 m. The leaves can be used as vegetable. The juice of the plant mixed with onion is used to remove warts.
License | http://creativecommons.org/licenses/by-nc-sa/3.0/ |
Rights holder/Author | eFloras.org Copyright © Missouri Botanical Garden |
Source | http://www.efloras.org/florataxon.aspx?flora_id=5&taxon_id=200012375 |
corniculata: with a small horn-like appendage