05 April 1990.
La Rioja, Argentina
Locality: Chilecito. On road from Chilecito to El Vallecito, 10.2 km NW of town square of Chilecito, 2.2 km NW of Santa Florentina school yard.
Coordinates: -29.1333, -67.6167
(Map it)
Elevation: 1520m.
Environment description: In sandy, mucky soil by drainage ditch on roadside, with Acacia caven, Nicotiana glauca, Stipa, Bidens.
Comment: No flowers or fruits seen, tubers white, not pink as in all other populations seen in area.
Collector(s):