Orchidaceae - enormous cosmopolitan family of perennial terrestrial or epiphytic plants with fleshy tubers or rootstocks and unusual flowersorchid, orchidaceous plant - any of numerous plants of the orchid family usually having flowers of unusual shapes and beautiful colors genus Orchis - type genus of the orchid family; hardy terrestrial orchids of the temperate the northern hemisphere genus Aerides - epiphytic orchids of tropical Asia having stiff leaves and fragrant white flowers in arching racemes genus Bletia - genus of tropical American terrestrial orchids with large purple or pink flowers Bletilla, genus Bletilla - small genus of chiefly east Asiatic hardy terrestrial orchids similar to genus Bletia genus Brassavola - genus of tropical American epiphytic or lithophytic rhizomatous orchids Brassia, genus Brassia - genus of tropical American epiphytic orchids having striking axillary racemes of yellow to green spiderlike flowers with long slender sepals and warty lips: spider orchids genus Calanthe - large and widely distributed genus of terrestrial orchids genus Calypso - one species found throughout much of northern North America and Eurasia Catasetum, genus Catasetum - genus of tropical American orchids having showy male and female flowers usually on separate inflorescences genus Cattleya - large and highly valued genus of beautiful tropical American epiphytic or lithophytic orchids; the typical orchids; known in many varieties Cleistes, genus Cleistes - terrestrial orchids of North and South America having slender fibrous roots; allied to genus Pogonia genus Coelogyne - large diverse genus of tropical Asiatic epiphytic orchids Corallorhiza, genus Corallorhiza - genus of leafless root-parasitic orchids having small purplish or yellowish racemose flowers with lobed lips; widely distributed in temperate regions genus Cymbidium - genus of tropical epiphytic or terrestrial Old World orchids; one of the most popular orchid genera Cypripedium, genus Cypripedium - genus of chiefly American perennial leafy-stemmed orchids: lady's slippers; sometimes includes species of genus Paphiopedilum genus Dendrobium - large genus and variable genus of chiefly epiphytic or lithophytic orchids of tropical and subtropical Asia and Australasia genus Disa - genus of showy tropical African terrestrial orchids Dracula, genus Dracula - comprises tropical American species usually placed in genus Masdevallia: diminutive plants having bizarre and often sinister-looking flowers with pendulous scapes and motile lips Dryadella, genus Dryadella - comprises tropical American species usually placed in genus Masdevallia: very dwarf plants having short tufted and usually unifoliate stems with usually solitary flowers Encyclia, genus Encyclia - large genus of epiphytic and lithophytic orchids of tropical and subtropical Americas and West Indies; formerly included in genus Epidendrum |