Thrixspermum, commonly known as hairseeds or 白点兰属 , is a genus of flowering plants in the family Orchidaceae. Orchids in this genus are epiphytes, lithophytes or terrestrial plants with flat, leathery leaves and short-lived flowers with the sepals and petals more or less similar to each other. The labellum is rigidly fixed to the column and has three lobes. The side lobes are erect and the middle lobe is thick and fleshy. There are about 190 species distributed from tropical and subtropical Asia to the Western Pacific. Most species grow in lowland or tropical rainforests up to an altitude of 1,200 m.
Malaxis, commonly called adder's mouth, is a genus of terrestrial and semiepiphytic orchids. The generic name signifies "smooth" and alludes to the tender texture of the leaves. There are approximately 182 species, found mostly in tropics but with some species in temperate regions.
Hammarbya paludosa is a small orchid commonly known as bog orchid, bog adder's-mouth or bog adder's-mouth orchid. It grows in bogs in temperate and subarctic regions of the Northern Hemisphere.
Pinalia, commonly known as gremlin orchids, is a genus of flowering plants in the family Orchidaceae. Orchids in this genus are large epiphytic or lithophytic plants with prominent pseudobulbs, each with up to three thin, flat leaves and cup-shaped, relatively short-lived flowers with scale-like brown hairs on the outside. There are about 120 species occurring from tropical to subtropical Asia to the south-west Pacific.
Rodriguezia, abbreviated Rdza. in the horticultural trade, is a genus of orchids. It consists of 49 known species, native to tropical America from southern Mexico and the Windward Islands south to Argentina, with many of the species endemic to Brazil.
Malaxis unifolia, or the green adder's-mouth orchid, is a species of orchid occurring from eastern and central Canada, the central and eastern United States, Mexico, Central America and the Greater Antilles.
Polystachya concreta, the greater yellowspike orchid, is a species of orchid native to tropical and subtropical America, Africa and Asia.
Gomphichis is a genus of flowering plants from the orchid family, Orchidaceae, native to Costa Rica and northern South America.
Leochilus is a genus of flowering plants from the orchid family, Orchidaceae, native to Mexico, Central America, northern South America, the West Indies and Florida.
- Leochilus carinatus(Knowles & Westc.) Lindl. - Oaxaca, Veracruz
- Leochilus crocodiliceps(Rchb.f.) Kraenzl. in H.G.A.Engler - Jalisco, Colima
- Leochilus hagsateriM.W.Chase - Oaxaca
- Leochilus inconspicuus(Kraenzl.) M.W.Chase & N.H.Williams - Costa Rica
- Leochilus johnstoniiAmes & Correll - from Oaxaca south to Nicaragua
- Leochilus labiatus(Sw.) Kuntze - from Oaxaca south to Brazil; also West Indies and Florida
- Leochilus leiboldiiRchb.f. - Oaxaca, Veracruz
- Leochilus leochilinus(Rchb.f.) M.W.Chase & N.H.Williams - Nicaragua, Costa Rica, Panama
- Leochilus oncidioidesKnowles & Westc. - Mexico, Guatemala, Honduras
- Leochilus puertoricensisM.W.Chase - Puerto Rico, St. Lucia
- Leochilus scriptus(Scheidw.) Rchb.f. - from southern Mexico south to Ecuador; also Cuba, Trinidad, Dominican Republic
- Leochilus tricuspidatus(Rchb.f.) Kraenzl. in H.G.A.Engler - Costa Rica, Panama
Malaxis bayardii, or Bayard's adder's-mouth orchid, is a species of orchid native to northeastern North America. It is found from Massachusetts to North Carolina, with isolated populations in Ohio and Nova Scotia. There are historical reports of the plant formerly growing in Vermont and New Jersey, but it seems to have been extirpated in those two states It grows in dry, open woods and pine barrens at elevations of less than 600 m.
Malaxis densiflora is a species of orchid native to southern India. It generally has two leaves and purple flowers.
Malaxis discolor is a species of orchid that is endemic to Sri Lanka.
Malaxis excavata is a species of orchid widespread across much of Mesoamerica and South America from Mexico to Argentina. It has green flowers in a flat-topped array.
Malaxis warmingii is a species of orchid native to Brazil.
Malaxis histionantha is a species of orchid native to Latin America. It is widespread from Mexico to Argentina. It generally has two leaves and a more or less spherical cluster of small green flowers.
Malaxis abieticola is a species of orchid native to Mexico and to the southwestern United States. It has only one leaf underneath several small green flowers growing in an elongated array.
Malaxis porphyrea, the Cochise adder's-mouth orchid, is a species of orchid native to northern Mexico and the southwestern United States. It is an herb up to 45 cm (18 in) tall with only one leaf below tiny purple flowers in an elongated cluster.
Malaxis macrostachya is a species of orchid widespread across much Mexico, Central America, and the southwestern United States. It has only one leaf per plant, along with a tall flower stalk with as many as 160 tiny, green flowers.
Malaxis ehrenbergii, the Ehrenberg's adder's-mouth orchid, is a Mesoamerican species of orchid native to northwestern Mexico. It has been found in Mexico, Guatemala, and El Salvador.
Malaxis myurus is a Mexican species of orchids. It generally has two lance-shaped leaves and an elongated raceme of tiny flowers.
