Oxalis brasiliensis G. Lodd, C. Lood & W. Lood.

Echeverría, María L., Alonso, Sara I. & Comparatore, Viviana M., 2017, Survey of the vascular plants of Sierra Chica, the untouched area of the Paititi Natural Reserve (southeastern Tandilia mountain range, Buenos Aires province, Argentina), Check List 13 (6), pp. 1003-1036 : 1023-1024

Oxalis brasiliensis G. Lodd, C. Lood & W. Lood.

Figure 27

Oxalis brasiliensis G. Lodd, C. Lood & W. Lood ex Hildebrand (1884) : 1962 — Lourteig (2000): 201; Flora Argentina (2017); Tropicos (2017).

Oxalis macachin Arechav. (1898) ex Arechavaleta (1900) : 219 — Cabrera (1965a): 6.

Cryptophytes, native with wide distribution in the American continent.

Characteristics. Perennial herb with pivoting and fleshy roots. Bulb globose, covered with scales from the leaf sheaths. Leaves long, petiolated, trifoliate, pubescent and arranged in a basal rosette. Leaflets semi-fleshy, obovate shape and with subtle emarginated apex. Inflo- rescence: an umbel, with 3–5 actinomorphic flowers with five pink to purple petals and five sepals. Fruit: a cylindri- cal capsule.

Comments. This is a very frequent species in the study area. It grows in grassy slopes, cracks, and rocky outcrops on the slopes and on the summit. It differs from other Oxalis that have also been found in mountain ranges, by its simple bulb, leaflet with subtle emarginated apex and inflorescence with at least 3 pinkish flowers.