| Family | OXALIDACEAE |
| Genus species | Oxalis drummondii A.Gray |
| Bibliography | Smithsonian Contr. Knowl. 5(6): 25 (1853) |
| Native Range | c. & s. Texas to n. Mexico |
| Primary Biome | Subtropical |
| Habitat | rocky slopes |
| Altitude | 20-300m |
| Description | acaulescent, leaves ternate, leaflets obcordate or obtriangular, bilobate, lobes truncate, green, petiolate, flowers in umbellate cyme, petals 15-23mm long |
| Size | 10-15cm |
| Color | pale purple |
| Bloom | summer |
| Ca | |
| Type | tuberous perennial |
| Cultivation | sunny, dry, rock crevices, protection against winter wet alpine house, poor, drained soil, sun |
| Propagation | seed in spring, germ. 1-3 months 18-21°C division of resting tubers |
| Synonyms | Acetosella drummondii (A.Gray) Kuntze Ionoxalis amplifolia (Trel.) Rose Ionoxalis drummondii (A.Gray) Rose Ionoxalis madrensis Rose ex Small Ionoxalis vespertilionis Small Oxalis amplifolia (Trel.) R.Knuth Oxalis divergens var. amplifolia Trel. Oxalis incisa Denton Oxalis leonis Knuth Oxalis vespertilionis Torr. & A.Gray |
| Territory | 7 Northern America 77 South-Central U.S.A. (TEX Texas) 79 Mexico (MXE Mexico Northeast, MXN Mexico Northwest) |