Oxalis acetosella, also known as wood-sorrel or common wood-sorrel, is a herbaceous rhizomatous flowering plant in the family Oxalidaceae. The common name wood-sorrel is often used for other plants in the genus Oxalis. In much of its range, most of Europe and parts of Asia, it is the only member of its genus and hence simply known as wood-sorrel. While 'common wood-sorrel' may be used to differentiate it from most other species, this name is also used for the North American Oxalis montana. In the wild it grows across Manizales, Albania, Algeria, Altay, Amur and other regions. It grows to around 0.1-0.5 metres tall and 0.1-0.5 metres wide, carrying deciduous foliage. Grow it in partial shade and most soil types. It tolerates soil of any pH, moist but well-drained conditions and south-facing, west-facing and east-facing aspects.

https://en.wikipedia.org/wiki/Oxalis_acetosella

Oxalis acetosella

Common wood sorrel | Oxalis acetosella

Oxalis articulata subsp. rubra 'Alba' is a clump-forming cultivar of the Oxalis genus, which includes annuals and perennials with fibrous, bulb-like, or rhizomatous roots. This deciduous plant features palmately divided leaves and funnel- or bowl-shaped flowers that typically close in overcast conditions and at night. Suited to full sun and well-drained soils such as chalk, loam, or sand, it thrives in exposed, west- or south-facing aspects. Hardy to UK zone H4, it is ideal for rock gardens, patios, containers, and informal cottage gardens, with spring as its season of interest.

Oxalis articulata subsp. rubra 'Alba' is a hardy, deciduous bulb ideal for spring colour in rockeries, patios, and cottage gardens in full sun.

Oxalis articulata subsp. rubra 'Alba'

Oxalis bowiei, Bowie's wood-sorrel, red-flower woodsorrel, or Cape shamrock, is a plant from the genus Oxalis, which is native to what was Cape Province and KwaZulu-Natal in South Africa. It has also been naturalized in Australia. It is named after James Bowie who collected plants for the Royal Botanic Gardens, Kew at the beginning of the 19th century. Its flowering stems may be a foot or more in height and are produced continuously for a considerable length of time during summer. Grow it in full sun and most soil types. In UK gardens it is hardy through an average UK winter (RHS H4). It works well for patio and container plants, rock garden and cottage and informal garden. It tolerates soil of any pH, well-drained conditions and west-facing and south-facing aspects. Plant after last frost in fertile soil.

Oxalis bowiei is a member of the Oxalidaceae family, known for its diverse range of species that can be annuals or perennials. This particular species showcases the characteristic palmately divided leaves and exhibits the unique behavior of closing its flowers during cloudy weather and nighttime.

https://en.wikipedia.org/wiki/Oxalis_bowiei

Oxalis bowiei

Oxalis debilis 'Aureoreticulata' is an Oxalis cultivar recognised for its variegated foliage. It bears pinkish-purple flowers that open in the UK from May to August. In many European plantings the cultivar spreads by bulbs rather than seed. Leaves have a lemony flavour but contain oxalic acid, so eat only small amounts.

Oxalis debilis 'Aureoreticulata' features variegated leaves and pinkish-purple flowers from May to August and typically spreads by bulbs.

Oxalis debilis 'Aureoreticulata'

Oxalis debilis 'Aureoreticulata' - Pink-sorrel

Oxalis debilis var. debilis is a clump-forming cultivar of the Oxalis genus, which includes annual and perennial plants with fibrous, bulb-like, or rhizomatous roots. This deciduous plant features palmately divided leaves and funnel- or bowl-shaped flowers that close in overcast conditions and at night. It thrives in full sun on well-drained chalk, loam, or sand soils with a range of pH levels, making it suitable for exposed west- or south-facing aspects. Hardy to UK zone H4, it is ideal for patios, containers, rock gardens, and informal cottage gardens, with spring as its season of interest.

Oxalis debilis var. debilis is a hardy, clump-forming bulb ideal for full sun rockeries and patios, providing spring interest with its distinctive foliage.

Oxalis debilis var. debilis

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. Grow it in full sun and most soil types. In UK gardens it is hardy through an average UK winter (RHS H4). It works well for patio and container plants, rock garden and cottage and informal garden. It tolerates soil of any pH, well-drained conditions and west-facing and south-facing aspects. Plant after last frost in fertile soil.

Oxalis incarnata, commonly known as pale pink sorrel, belongs to the diverse Oxalidaceae family. This perennial showcases distinctive palmately divided leaves and typically features funnel- or bowl-shaped flowers that respond to light conditions by closing when the sky is cloudy or during nighttime.

https://en.wikipedia.org/wiki/Oxalis_incarnata

Oxalis incarnata

Pale pink sorrel | Oxalis incarnata

Oxalis obliquifolia is a clump-forming cultivar of the Oxalis genus, which includes annual and perennial plants with fibrous, bulb-like, or rhizomatous roots. This deciduous plant produces palmately divided leaves and funnel- or bowl-shaped flowers that typically close in overcast conditions and at night. It thrives in full sun on well-drained soils such as chalk, loam, or sand, and is suitable for exposed, west- or south-facing aspects. Hardy to UK zone H4, it is ideal for alpine rockeries, patios, containers, and informal or cottage gardens, with spring as its season of interest.

Oxalis obliquifolia is a hardy, clump-forming bulb ideal for rockeries and containers, offering attractive spring flowers and foliage in full sun.

Oxalis obliquifolia

Oxalis obtusa orange and cream-flowered is a clump-forming cultivar of the Oxalis genus, which includes annuals or perennials with fibrous, bulb-like, or rhizomatous roots. This deciduous plant produces funnel- or bowl-shaped flowers that typically close in overcast conditions and at night. Suited to full sun and well-drained soils such as chalk, loam, or sand, it thrives in exposed, west- or south-facing aspects. Hardy to UK zone H4, it is ideal for rock gardens, patios, containers, and informal or cottage gardens, with spring being its season of interest.

Oxalis obtusa orange and cream-flowered is a hardy spring-flowering bulb ideal for rockeries, patios, and cottage gardens in full sun.

Oxalis obtusa orange and cream-flowered

Oxalis ortgiesii, the fishtail oxalis, is a species of Oxalis (wood sorrel) native to Bolivia, Ecuador, and Peru. The three leaflets are deeply cleft at the tip, and purple on the underside. The yellow flowers have three stamen lengths and three pistil lengths, ordered in such a way that stamens and pistil of any one flower are never of the same length, guaranteeing cross-pollination. Grow it in full sun and most soil types. In UK gardens it is hardy through an average UK winter (RHS H4). It works well for patio and container plants, rock garden and cottage and informal garden. It tolerates soil of any pH, well-drained conditions and west-facing and south-facing aspects. Plant after last frost in fertile soil.

Oxalis ortgiesii, commonly known as tree oxalis, belongs to the diverse Oxalidaceae family. This species features distinctive palmately divided leaves and possesses a unique root system that can be fibrous or bulb-like. Known for its ability to close its flowers during cloudy weather and at night, tree oxalis adds an interesting dynamic to any collection.

https://en.wikipedia.org/wiki/Oxalis_ortgiesii

Oxalis ortgiesii

Tree oxalis | Oxalis ortgiesii

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. In the garden it prefers full sun and most soil types. In UK gardens it is hardy through an average UK winter (RHS H4). Suggested uses include patio and container plants, rock garden and cottage and informal garden. It tolerates soil of any pH, well-drained conditions and west-facing and south-facing aspects. Plant after last frost in fertile soil.

Oxalis purpurea is a member of the Oxalidaceae family, showcasing the typical traits of its genus with fibrous or bulb-like roots. Its palmately divided leaves are accompanied by flowers that close during cloudy weather and at night, adapting naturally to their environment.

https://en.wikipedia.org/wiki/Oxalis_purpurea

Oxalis purpurea

Oxalis spiralis is a clump-forming cultivar of the Oxalis genus, which includes both annual and perennial plants with fibrous, bulb-like, or rhizomatous roots. This deciduous bulb thrives in full sun and well-drained soils such as chalk, loam, or sand, and is hardy to UK zone H4. Its palmately divided leaves and funnel-shaped flowers are typical of the genus, closing during overcast weather and at night. Suitable for rock gardens, patios, and informal cottage gardens, it prefers west- or south-facing, exposed sites and is best propagated by division in spring.

Oxalis spiralis is a spring-flowering bulb ideal for rock gardens and containers, thriving in full sun and well-drained soils with RHS hardiness H4.

Oxalis spiralis

Oxalis triangularis, commonly known as purpleleaf false shamrock, is a clump-forming cultivar within the Oxalis genus. This deciduous plant typically reaches a height and spread of 0.1 to 0.5 metres, achieving full size within 1 to 2 years. It thrives in partial shade with a preference for south, east, or west-facing aspects in sheltered locations. Suitable for alpine rockeries, conservatories, greenhouses, and as a houseplant, it grows well in moist but well-drained sandy, loamy, or chalk soils with alkaline, neutral, or acid pH. Its season of interest is summer.

Oxalis triangularis, or purpleleaf false shamrock, is a clump-forming plant ideal for partial shade with summer interest, growing up to 0.5m tall and wide.

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 triangularis

Purpleleaf false shamrock | Oxalis triangularis

Oxalis violacea, commonly known as violet wood sorrel, is a clump-forming perennial bulb suitable for alpine rockeries and informal gardens. This deciduous plant features palmately divided foliage and funnel-shaped flowers that bloom in spring. It thrives in full sun on well-drained soils ranging from chalk to sand, and tolerates a variety of soil pH levels. Hardy to UK zone H4, it is best grown in exposed, west- or south-facing positions. Propagation is by division in spring, with small rhizome sections rooting readily under bottom heat.

Oxalis violacea, violet wood sorrel, is a hardy spring-flowering perennial bulb ideal for alpine rockeries and informal gardens in full sun.

Oxalis violacea

Violet wood sorrel | Oxalis violacea

Oxalis vulcanicola 'Burgundy' is a clump-forming cultivar of the Oxalis genus, known for its fibrous or rhizomatous root systems and palmately divided leaves. This deciduous bulbous plant thrives in full sun and well-drained soils, including chalk, loam, and sand, and is hardy to UK zone H4. It is suitable for exposed, west- or south-facing aspects and is ideal for rock gardens, patios, containers, and informal cottage gardens. Flowering in spring, it can be propagated by division of rhizomes in spring, which root readily with bottom heat.

Oxalis vulcanicola 'Burgundy' is a spring-flowering, deciduous bulb ideal for rockeries and containers, thriving in full sun and well-drained soil.