Platanthera chorisiana (Cham.) Rchb.f. 1851 Photo by Bill Temple

Plant and Flowers in situ Aleutians Photo by Carl Luer

Part shade Cold LATE SpringSummer

Common Name Choris' Platanthera [Russian Artist and traveller late 1700's to earlier 1800's]

Flower Size 3/8" [9mm]

Found in Siberia, Japan, Aluetians, Alaska, British Columbia and Washington state of the USA as a medium sized, cold growing terrestrial with fleshy roots giving rise to 2 to 4, glossy green, cauline, ovate to ovate-lanceolate, acute leaves with a solitary bract above that blooms in the late spring and summer on a rather stout, terminal, to 24" [to 60 cm] long, loosely few flowered inflorescence bearing 2 leaf-like bracts and with lanceolate, longer than the ovary floral bracts and carrying minute, greenish flowers.

Synonyms *Habenaria chorisiana Cham.1828; Limnorchis chorisiana (Cham.) J.P.Anderson 1945; Limnorchis chorisiana var. elata (Finet) Efimov 2007; Peristylus chorisianus (Cham.) Lindl. 1835; Platanthera chorisiana var. elata Finet 1900; Platanthera ditmariana Kom. 1914; Platanthera matsudae Makino 1902; Pseudodiphryllum chorisianum (Cham.) Nevski 1935

References W3 Tropicos, Kew Monocot list , IPNI ; Studies in the Family Orchidaceae Vol 4 Ames 1910 as Habenaria chlorisana; Native Orchids of North America Correll 1950 drawing fide; Encyclopedia of Cultivated Orchids Hawkes 1965; Die Orchideen 3 Auflage Bd 1 Sonderabdruck aus Schlechter Lieferung 4 193 to 256 Brieger, Maatsch and Senghas 1973 as Pseudodiphryllum chlorisiana; The Native Orchids of the United States and Canada Luer 1975 drawing/photos fide;