Malaxis unifolia

Malaxis unifolia, or the green adder's-mouth orchid,[2] is a species of orchid occurring from eastern and central Canada (Newfoundland to Manitoba),[3] the central and eastern United States (Maine to Florida, west as far as Minnesota, eastern Kansas, and eastern Texas),[4] Mexico,[5] Central America and the Greater Antilles (Cuba, Jamaica, Dominican Republic).[6][7][8]

Malaxis unifolia
1829 illustration[1]

Secure  (NatureServe)
Scientific classification
Kingdom:
Plantae
(unranked):
Angiosperms
(unranked):
Monocots
Order:
Asparagales
Family:
Orchidaceae
Subfamily:
Epidendroideae
Tribe:
Malaxideae
Genus:
Malaxis
Species:
M. unifolia
Binomial name
Malaxis unifolia
Michx. 1803
Synonyms
  • Orchis ophioglossoides Walter
  • Malaxis ophioglossoides Muhl. ex Willd.
  • Achroanthes unifolia (Michx.) Raf.
  • Microstylis ophioglossoides (Muhl. ex Willd.) Nutt. ex Eaton
  • Prescottia ophioglossoides (Muhl. ex Willd.) Spreng.
  • Microstylis ophioglossoides var. mexicana Lindl.
  • Achroanthes laxiflora Raf.
  • Achroanthes obtusifolia Raf.
  • Malaxis thlaspiformis A.Rich. & Galeotti
  • Microstylis unifolia (Michx.) Britton, Sterns & Poggenb.
  • Microstylis grisebachiana Fawc. & Rendle
  • Malaxis grisebachiana (Fawc. & Rendle) Fawc. & Rendle
  • Malaxis unifolia f. bifolia Mousley
  • Malaxis unifolia f. variegata Mousley
  • Malaxis amplexicolumna E.W.Greenw. & R.Gonzál
Malaxis unifolia in southern Cumberlands

Malaxis unifolia generally has only one leaf, but rarely two. Flowers are green, in a raceme, often resembling an umbel at first before it elongates.[7]

References
  1. M. Hart del., J. Watts sc. - Edwards's Botanical Register, volume 15 plate 1290
  2. "Malaxis unifolia". Natural Resources Conservation Service PLANTS Database. USDA. Retrieved 28 June 2015.
  3. Biota of North America Program, 2014 state-level distribution map
  4. Biota of North America Program, 2014 county distribution map
  5. SEINet, Southwestern biodiversity, Arizona chapter
  6. Kew World Checklist of Selected Plant Families
  7. Flora of North America, Malaxis unifolia
  8. Ames, O. & D. S. Correll. 1952. Orchids of Guatemala. Fieldiana, Botany 26(1): i–xiii, 1–395


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