Herbs, epiphytic, without evident stems. Leaves many-ranked, rosulate; blade linear to triangular, base usually with chalklike bloom, margins entire, appressed-scaly. Inflorescence central, 5–many-flowered, always many-ranked, simple or compound, flowers laxly arranged; floral bracts small, inconspicuous, not obscuring rachis. Flowers bisexual in flora or functionally unisexual; sepals distinct, strongly asymmetric; petals distinct; stamens included, usually in 2 unequal sets, filaments free; ovary superior. Capsules ovoid to ellipsoid, dehiscent. Seeds with light tan to brown, apical, plumose appendage.
Fla., West Indies, Mexico, Central America, South America.
Species 18 (3 in the flora).
|1||Inflorescence 3–10-flowered, pendent; corolla bright yellow, nocturnal||Catopsis nutans|
|1||Inflorescence 15–50-flowered, erect to pendulous; corolla white, diurnal.||> 2|
|2||Leaves yellow-green, covered with conspicuous, white, chalky powder; floral bracts 6–8 mm||Catopsis berteroniana|
|2||Leaves bright green, not covered with conspicuous, white, chalky powder; floral bracts 4–5 mm||Catopsis floribunda|