Guatemala: Peten. from junction with road to Tikal in El Remate, take road west toward San Jose along north edge of Lake Peten; ca 27 km east of edge of San Jose. Mosaic of dense tall forest (ca 15 m tall) and dense to open shrubby secondary thicket; open areas with Cecropia, Hamelia, Lantana, Cardiospermum, Lygodium, Lasiacis, Piper, Gouania, Ipomoea, Dioscorea, Russelia, Anemia, Adiantum, Porophyllum, Capraria, Sida, Cissus, cf. Matelea, Diospyros, Corchorus. Erect herb to ca 3 m tall; stems with slight glaucous coating; flowers white, anthers blackish. Lat. 17°00'24.8"N Long. 89°44'37"W Datum: NAD27.