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| Oxalis dillenii | |
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Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Oxalidales |
| Family: | Oxalidaceae |
| Genus: | Oxalis |
| Species: | O. dillenii
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| Binomial name | |
| Oxalis dillenii | |
| Synonyms[2] | |
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Oxalis dillenii, the southern wood-sorrel,[3] slender yellow woodsorrel, or Dillen's oxalis,[4] is a species in the woodsorrel family. Like other Oxalis species, the leaves of this plant resemble clover leaves, with three leaflets. Oxalis dillenii can be confused with other small yellow flowered species in North America, such as Oxalis florida.[5] The flowers have five yellow petals that are 4 to 10 mm (0.16 to 0.39 in) in length. The leaflets are 1 to 2 cm (0.39 to 0.79 in) wide with pointed hairs. The fruits are rather brown and are 1.5 to 2.5 cm (0.59 to 0.98 in). It is often considered a weed, and can be found worldwide, but likely originated in North America.[6]
Taxonomy
[edit]Oxalis dillenii was given its scientfic name by Nikolaus Joseph von Jacquin in 1794. It is part of the genus Oxalis within the family Oxalidaceae and it has 15 synonyms.[2]
| Name | Year | Rank | Notes |
|---|---|---|---|
| Oxalis arborea T.Moore & Mast. | 1881 | species | = het. |
| Oxalis boreaui P.Fourn. | 1937 | species | = het., nom. superfl. |
| Oxalis corniculata f. diffusa (Boreau) Fiori | 1901 | form | = het. |
| Oxalis corniculata proles diffusa (Boreau) Rouy | 1897 | proles | = het. |
| Oxalis corniculata var. dillenii (Jacq.) Trel. | 1897 | variety | ≡ hom. |
| Oxalis corniculata var. lyonii (Pursh) Zucc. | 1831 | variety | = het. |
| Oxalis diffusa Boreau | 1857 | species | = het. |
| Oxalis dillenii var. radicans Shinners | 1956 | variety | ≡ hom. |
| Oxalis florida subsp. prostrata (Haw.) Lourteig | 1979 | subspecies | = het. |
| Oxalis lyonii Pursh | 1813 | species | = het. |
| Oxalis prostrata Haw. | 1803 | species | = het. |
| Oxalis recurva var. floridana Wiegand | 1925 | variety | = het. |
| Oxalis sanguinolaria Raf. | 1817 | species | = het. |
| Xanthoxalis dillenii (Jacq.) Holub | 1972 | species | ≡ hom. |
| Xanthoxalis lyonii (Pursh) Holub | 1973 | species | ≡ hom. |
| Notes: ≡ homotypic synonym ; = heterotypic synonym | |||
References
[edit]- ^ NatureServe (5 December 2025). "Oxalis dillenii". NatureServe Explorer. Arlington, Virginia. Retrieved 14 December 2025.
- ^ a b "Oxalis dillenii Jacq". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 14 December 2025.
- ^ "Slender Yellow Woodsorrel, Southern Yellow Wood-sorrel, Dillen's Oxalis - Oxalis dillenii". uswildflowers.com. Retrieved 6 May 2022.
- ^ "Oxalis dillenii". Integrated Taxonomic Information System. Retrieved 6 May 2022.
- ^ "Digital Atlas of the Virginia Flora | Oxalis dillenii Jacquin". www.vaplantatlas.org. Retrieved 2024-09-04.
- ^ Gleason & Cronquist (1991). Manual of Vascular Plants of Northeastern United States and Adjacent Canada (2nd ed.). The New York Botanical Garden.
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