Barrelier's Woodsorrel

Lotoxalis barrelieri (L.) Small ( ) i alii Barrelieri L. Sp. PI. ed. 2. 624. 1762.
Plants 10-55 cm. tall, the stem and spreading branches glabrous or with scattered hairs at least on the younger parts ; leaves mostly remote or scattered along the stem and the branches, the petioles glabrous or pubescent like the stem and the branches ; blades of the leaflets ovate, oblong-ovate or ovate-lanceolate, mostly 1.5-4.5 cm. long, obtuse or acute, deep-green and glabrous or nearly so above, paler and often with scattered hairs beneath, those of the lateral leaflets manifestly smaller than the terminal one ; primary peduncles mostly longer than the petioles ; pedicels glabrous or nearly so, at least at maturity, 3-4 mm. long; sepals 3-3.5 mm. long, the outer ones oblong-lanceolate, mostly glabrous, some times bearded at the tip ; petals purple or rose, twice or thrice longer than the sepals ; longer filaments appendaged above the middle, minutely pubescent above the appendage ; styles pubescent ; capsules broadly oblong, 5-7 mm. long.
Type locality : America.
Distribution : West Indies, and northern South America.

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. It also bears the Latin synonym, Oxalis bahiensis. It is native to the West Indies and to Central America and South America (Smith, 1985; pp. 624–625). It was introduced into parts of Africa, Ceylon, and Malesia (Smith, 1985; pp. 624–625). It is considered a weed in the Caroline and Mariana Islands and in Samoa (Smith, 1985; pp. 624–625).

The plant grows to a height of 20–150 cm and has pink flowers with a greenish or yellow base (Smith, 1985; pp. 624–625). Leaflets on the stems generally have three leaves attached to the center (Smith, 1985; pp. 624–625).