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.
Trifolium aureum, known by the various common names large hop trefoil, large trefoil, large hop clover, golden clover or hop clover, is a species of flowering plant native to much of Eurasia.
Trifolium campestre, commonly known as hop trefoil, field clover and low hop clover, is a species of flowering plant native to Europe and western Asia, growing in dry, sandy grassland habitats, fields, woodland margins, roadsides, wastelands and cultivated land. The species name campestre means "of the fields".
Oxalis stricta, called the common yellow woodsorrel, common yellow oxalis, upright yellow-sorrel, lemon clover, or more ambiguously and informally "sourgrass", "juicy fruit","sheep weed", or "pickle plant", is a herbaceous plant native to North America and East Asia and has been introduced elsewhere, especially in Europe. 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".
Dactylorhiza maculata, known as the heath spotted-orchid or moorland spotted orchid, is an herbaceous perennial plant of the family Orchidaceae. It is widespread in mountainous regions across much of Europe from Portugal and Iceland east to Russia. It is also found in Algeria, Morocco, and western Siberia.
Oxalis barrelieri, the Barrelier's woodsorrel, or lavender sorrel, also commonly called in French trèfle, oseille-marron, or oseille-savane, is a plant from the genus Oxalis.
Oxalis triangularis, commonly called false shamrock, is a species of perennial plant in the family Oxalidaceae. It is native to several countries in southern South America. This woodsorrel is typically grown as a houseplant but can be grown outside in USDA climate zones 8a–11, preferably in light shade.
Oxalis hedysaroides, known as the fire fern, is not a fern but a flowering perennial plant native throughout Colombia and Ecuador. It is a member of the woodsorrel genus (Oxalis) that grows to 30 cm height and 10 cm spread.
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. However, it has propagated to other parts of the world.
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, red oxalis, 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 western 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.
Sprengelia incarnata, commonly referred to as pink swamp-heath, is a species of flowering plant of the family Ericaceae, and is native to south-eastern Australia and New Zealand. It is an erect, glabrous shrub with sharply-pointed, stem-clasping, egg-shaped leaves, and clusters of pink, tube-shaped flowers with spreading lobes.
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 articulata, known as pink-sorrel, pink wood sorrel, windowbox wood-sorrel, chari amilo (Nepal), sourgrass, netho (khatta) saag (India) is a perennial plant species in the genus Oxalis native to temperate South America. It has been introduced in Europe in gardens and is now naturalized in these areas.
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 dillenii, the southern wood-sorrel, slender yellow woodsorrel, or Dillen's oxalis, 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. The flowers have five yellow petals that are 4 to 10 mm in length. The leaflets are 1 to 2 cm wide with pointed hairs. The fruits are rather brown and are 1.5 to 2.5 cm. It is often considered a weed, and can be found worldwide, but likely originated in North America.
Oxalis alpina is a herbaceous perennial plant also known by its common name alpine woodsorrel. It is a species belonging to the genus Oxalis.O. alpina is found in North America and Central America from Guatemala to the southwestern United States.
