Oxalis is a large genus of flowering plants in the wood-sorrel family Oxalidaceae, comprising over 550 species. 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.
Oxalis corniculata, the creeping woodsorrel, procumbent yellow sorrel or sleeping beauty, is a somewhat delicate-appearing, low-growing herbaceous plant in the family Oxalidaceae. It resembles the common yellow woodsorrel, Oxalis stricta.
Yellow woodsorrel may refer to any member of the woodsorrel genus (Oxalis) with yellow flowers, but especially:
Oxalis stricta, called the common yellow woodsorrel, common yellow oxalis, upright yellow-sorrel, lemon clover, or more ambiguously and informally "sourgrass", "sheep weed", or "pickle plant", is a herbaceous plant native to North America, parts of Eurasia, and a rare introduction in Britain. It tends to grow in woodlands, meadows, and in disturbed areas as both a perennial and annual. Erect when young, this plant later becomes decumbent as it lies down, and branches regularly. It is not to be confused with similar plants in the same genus which are also often referred to as "yellow woodsorrel".
Oxalis hedysaroides, known as the fire fern, is not a fern but a flowering perennial plant native to the Caribbean. It is a member of the woodsorrel genus (Oxalis) that grows to 30 cm height and 10 cm spread.
Oxalis albicans, commonly known as radishroot woodsorrel, is North American species of perennial herbs in the woodsorrel family. It is widespread in Mexico and the southwestern United States.
Sorrel, Rumex acetosa, is a perennial herb cultivated as a leaf vegetable.
Oxalis incarnata is a species of flowering plant in the woodsorrel family known by the common names pale pink-sorrel and crimson woodsorrel. It is native to southern Africa, but it can be found on other continents where it is an introduced species, often the descendant of garden escapees. It is grown and kept as an ornamental plant. This is a perennial herb growing from a system of rhizomes and bulbs. The branching, hairless stem grows to nearly 30 centimeters in maximum length. There may be small bulblets located along the stem above ground. The leaves are borne on long petioles in erect bunches, each leaf made up of three leaflets. The solitary flower arises on a peduncle. Each flower has five white to light pink petals.
Oxalis latifolia is a species of flowering plant in the woodsorrel family known by the common names garden pink-sorrel and broadleaf woodsorrel. It is native to Mexico and parts of Central and South America.
Oxalis purpurea is a species of flowering plant in the woodsorrel family known by the common name purple woodsorrel. It is native to southern Africa, including South Africa, but it is known on most continents as an introduced species. It is cultivated as an ornamental plant. This perennial herb grows from bulbs and produces a few basal leaves and flowers. The leaf is made up of three hairy leaflets of various shapes which are dark green in color, turning streaked and spotted with brown as they dry. The solitary flower arises on a stemlike peduncle and has five petals which may exceed two centimeters in length. The flower may be white to pink or purple-red.
Oxalis rubra is a species of flowering plant in the woodsorrel family known by the common name red woodsorrel and windowbox woodsorrel. It is sometimes considered a subspecies of Oxalis articulata. It is native to Argentina, Brazil, and Uruguay, but it is widely cultivated as an ornamental plant and can sometimes be found growing in the wild as a garden escapee. This is a perennial herb growing from a woody rhizome. There is generally no stem, the leaves arising on long petioles from ground level. Each leaf is made up of three leaflets which can vary in shape but are often heart-shaped. The inflorescence is a loose array of white to purple-pink flowers.
Oxalis suksdorfii is a species of flowering plant in the woodsorrel family known by the common name western yellow woodsorrel and Suksdorf's woodsorrel. It is native to the west coast of the United States from Washington to northern California, where it can be found in open and wooded habitat types. It is a perennial herb growing erect or trailing, sometimes rooting at stolons, its stem reaching up to 25 centimeters in length. The leaves are each made up of three leaflets. The inflorescence is a solitary flower or cluster of up to three, each flower with five yellow petals up to 2 centimeters in length.
Pes-caprae is Latin for "goat's foot" and may refer to:
Oxalis montana is a species of flowering plant in the family Oxalidaceae known by the common names mountain woodsorrel, wood shamrock, sours and white woodsorrel. It may also be called common woodsorrel, though this name also applies to its close relative, Oxalis acetosella.
Oxalis debilis, the large-flowered pink-sorrel or pink woodsorrel, is a perennial plant and herb in the family Oxalidaceae. Its original distribution is South America but has become a very cosmopolitan species, occurring in all continents except Antarctica. It can be found in both temperate and tropical areas.
Oxalis priceae, the tufted yellow woodsorrel, is a species of flowering plant in the woodsorrel family. It is native primarily to southeastern North America, with a disjunct population being known from montane areas of Nuevo León, Mexico. This species is found in dry, rocky, calcareous areas such as cedar glades and cliff faces, but it is occasionally found in oak-pine woodlands and longleaf pine savanna as well.
Oxalis illinoensis, the Illinois woodsorrel, is a species of flowering plant in the woodsorrel family (Oxalidaceae). It is endemic to the United States, where it found in Illinois, Indiana, Kentucky, and Tennessee. The limits of the range of this species are unclear due to its similarity to Oxalis grandis, with which there has been confusion.
Oxalis dillenii, also the southern wood-sorrel, slender yellow woodsorrel, and Dillen's oxalis, is species in the wood-sorrel family Oxalidaceae in the genus Oxalis. Like other Oxalis species, the leaves of this plant resemble clover leaves, with three leaflets. Flowers have five yellow petals that are 4 to 10 millimetres in length. Leaflets are 1 to 2 centimetres wide with pointed hairs. Fruits are rather brown and 1.5 to 2.5 centimetres. It is often considered a weed, and can be found worldwide, but likely originated in North America.
Oxalis brasiliensis, also known by its common name Brazilian woodsorrel is a species from the section Ionoxalis. It was first described by Dámaso Antonio Larrañaga.
