25 April 1983.
Salta, Argentina
Locality: La Poma. Quebrada de Matanzillas, 8 km west of route 40, 33 km norht of San Antonio de los Cobres, between kms 1412 and 1413 of route 40.
Coordinates: -23.9333, -66.3500
(Map it)
Elevation: 3700m.
Environment description: Steep shaded rocky slopes of a gorge.
Collector(s):