Malaxis unifolia Michx. 1803

Photo by © Carl Luer and The Swiss Orchid Foundation at the Jany Renz Herbaria Website

Plant in situ USA

Another View

Another View

Photos by Paul Johnson ©


Common Name The Single-Leafed Malaxis - The Green Adder's Mouth Orchid

Flower Size .1" to .2" [2 to 4 mm]

Found in Newfoundland, New Brunswick, Quebec, Prince Edward Island, Nova Scotia, Ontario, Manitoba provinces of Canada and Maine, Vermoint, New Hampshire, Massachusetts, Conneticutt, Rhode Island, New York, New Jersey, Pennsylvania, Wahington DC, Maryland, Delaware, Virginia, West Virginia, Oghio, Indiana, Illinois, Michigan, Wisconson, Minnesota, Iowa, Missouri, Kentucky, North Carolina, South Carolina, Georgia, Florida, Alabama, Mississippi, Tennessee, Arkansas, Oklahoma, Louisiana and Texas USA through Mexico, Guatemala, Honduras El Salvador and Costa Rica as well as Cuba, Domincan Republic and Jamaica in dry woodlands and mesic pine flatwoods as a miniature to small sized, cool to cold growing terrestrial occuring in deep shade an erect, terete stem swollen basally into a false bulb and carrying midway up, a single, ovate, keeled leaf that blooms in the late winter and spring to summer on an erect, to 12" [30 cm] long, few to many [3 to 80] flowered, arranged in a packed raceme that elongates with age

Synonyms Achroanthes ophioglossoides (Muhl. ex Willd.) Raf. 1808; Achroanthes unifolia (Michx.) Raf. 1808; Malaxis grisebachiana (Fawc. & Rendle) Fawc. & Rendle 1910; Malaxis ophioglossoides Muhl. ex Willd. 1805; Malaxis thlaspiformis A. Rich. & Galeotti 1845; Microstylis grisebachiana Fawc. & Rendle 1909; Microstylis ophioglossoides (Muhl. ex Willd.) Nutt. ex Eaton 1822; Microstylis unifolia (Michx.) Britton, Sterns & Poggenb. 1888; Prescottia ophioglossoides (Muhl. ex Willd.) Spreng. 1826

References W3 Tropicos, Kew Monocot list , IPNI Symbolae Antillanae Vol VI Orchidaceae Urban 1909 as Microstylis grisebachiana; Flora of Jamaica Fawcett & Rendle 1910 as M grisebachiana drawing ok; Die Orchideen Schlechter 1915 as Microstylis ophioglossioides; AOS Bulletin Vol 33 No 5 1964 photo good; Encyclopedia of Cultivated Orchids Hawkes 1965; The Native Orchids of Florida Luer 1972 drawing/photos fide; Las Orquedias De El Salvador Vol 2 Hamer 1974 drawing/photo ok; The Native Orchids of the United States and Canada Luer 1975 drawing/photo fide; Las Orquedias de El Salvador Vol 3 Hamer 1981 drawing hmm; Die Orchideen Band 3 Sonderabdruck aus Schlechter Brieger, Maatsch and Senghas Liferung #13 753 - 819 Liparinae 1983; Flora Novo-Galaciana Vol 16 McVaugh 1985; Icones Planetarum Tropicarum Plate 1231 Dodson 1985 drawing ok?; Schlechteriana Vol 4 No 4 1993; AOS Bulletin Vol 63 #4 1994; AOS Bulletin Vol 69 No 4 2000; Orquideas del Estado de Morelos ORQUÍDEA (MÉX.) VOLUMEN 16 NÚMERO ÚNICO enero 2002 drawing fide/photo ok; The Wild Orchids of Florida Brown 2002; AOS Bulletin Vol 85 #3 2016 as Microstylis ophioglossoides drawing fide; Orchid Genera and Species in Guatemala Archila, Szlachchetko, Chiron, Lipinska, Mystkowska and Bertolini 2018