Sobralia rogersiana Christenson 2007

Photo by Kerry Dressler and The ResearchGate Website

Flower Dissection Photo by Adam Karremans and The ResearchGate Website


Common Name Rogers Sobralia [An American orchid Enthusiast current]

Flower Size to 6" [to 15 cm]

Found in Guatemala, El Salvador and Nicaragua in wet to semi arid forests and in Oak forests as a giant sized, cool growing terrestrial with thin, terete, elongate to 80" [to 200 cm] long, stems carrying in the upper 2/3's, many alternate, plicate, narrowly elliptic-lanceolate, basally clasping leaves that blooms in the summer and again in the late fall and early winter on a terminal, single flowered inflorescence carrying fragrant flowers that last 2 days.

Differs from the similar S macrantha in the yellow center of the flower which in S macrantha is quite rounded in front while S rogersiana is rather square or notched in front, the midlobe of S rogersiana is more deeply divided and the seed capsule of S macrantha which is elongate and thinnish while S rogersiana is short and wide. S macrantha is a much shorter plant, to 48" [to 120 cm] long, as well.


References W3 Tropicos, Kew Monocot list , IPNI ; Las Orquedias De El Salvador Vol 2 Hamer 1974 as S macrantha drawing/photo fide; Las Orquideas de El Salvador Vol 3 Hamer 1981 as S macrantha drawing good; Orquideologia Vol 32 #1 Dodson & Karremans 2015 photo/drawing fide; AOS Bulletin Vol 85 #10 2016 photo fide; Orchid Genera and Species in Guatemala Archila, Szlachchetko, Chiron, Lipinska, Mystkowska and Bertolini 2018