Malaxis, commonly known as adder's mouth orchids, is a large genus of terrestrial and semiepiphytic orchids in the family Orchidaceae (order Asparagales). The genus was established by Solander ex Swartz and published in Prodromus Vegetabilium Indiae Occidentalis in 1778. With approximately 182 to 230 species recognised depending on the taxonomic treatment applied, Malaxis is one of the more species-rich orchid genera.
Members of the genus grow as terrestrials rooted in soil or as semiepiphytes associated with mossy substrates and forest litter. The leaves are characteristically soft and smooth in texture — a quality reflected in the generic name, which derives from the Greek malaxis, meaning "softening" or "smooth." Plants are generally small to medium in stature, bearing one to a few leaves and erect racemes of tiny, often green or purple flowers.
Malaxis has a broad global distribution, occurring primarily in tropical regions of Central and South America, Africa, Asia, and the Pacific, with some species reaching temperate zones in North America, Europe, and northern Asia. The genus includes species adapted to a range of forest habitats, from lowland tropical forest floors to montane cloud forests.
Etymology
The name Malaxis derives from the Greek word meaning "softening" or "smooth," referring to the characteristically tender, soft texture of the leaves. The genus is commonly known as adder's mouth orchids in North America.
Distribution
Malaxis is distributed primarily across tropical regions of Central and South America, Africa, Asia, and the Pacific Islands, with some species extending into temperate North America, Europe, and northern Asia. The genus occupies a wide range of forest habitats, from lowland tropical forests to montane zones.
Taxonomy Notes
The genus Malaxis was described by Solander ex Swartz and published in Prodr. Veg. Ind. Occ.: 119 in 1778. It belongs to the family Orchidaceae, order Asparagales. Species counts vary across treatments, with approximately 182 species cited in general sources and around 230 accepted by the GBIF backbone. The genus has historically been broadly circumscribed and some authors have segregated subsets into related genera.
