Aa leucantha (Rchb.f.) Schltr. 1920TYPE Drawing as Aa nigriscens by Schlechter and The Swiss Orchid Foundation at the Jany Renz Herbaria Website

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Common Name The White Flowered Aa

Flower Size Minute

Found in Colombia and Ecuador at elevations of 3000 to 4200 meters as a medium sized, cold growing terrestrial with when present, rosulate, ovate-lanceolate, acute, fleshy, shortly petiolate base leaves that blooms in the late spring and summer on an erect, completely enveloped by imbricating, diaphanous sheaths terminated by a short to 2.4" [6 cm] long, cylindrical, densely many flowered inflorescence

Synonyms Aa nigrescens Schltr. 1920; *Altensteinia leucantha Rchb.f. 1886; Altensteinia nigrescens (Schltr.) Løjtnant 1977

References W3 Tropicos, Kew Monocot list , IPNI ; Venezuelan Orchids Illustrated Vol 5 Dunsterville & Garay 1966 as Altenstenis leucantha not = Aa hartwegii; Flora of Ecuador 9(225: 1): 168 Garay 1978 drawing fide; Flora Of Ecuador # 76 225[2] Dodson & Luer 2005

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