It is a genus that includes about 90-100 species of orchids originating in Central and South America, in most cases epiphytes and deciduous leaves. Catasetums have the particularity of having dimorphic flowers, that is, male and female flowers have different shapes and grow on separate plants. The pseudobulbs are thick and fleshy, producing 8-10 elongated leaves, deeply marked by thin veins, which fall in winter; in spring or autumn, depending on the species, long stems sprout from the base of the pseudobulbs where numerous flowers bloom: the male flowers are very large and bloom on erect stems; they can launch pollen about a meter away and are very fragrant; the female flowers are helmet-shaped and less showy than the male ones, they bloom on hanging stems. Plants can reach sizes greater than 40-50 cm in one year of growth; female flowers are generally green, male flowers are white, pink or violet, but there are many hybrids of various colors.
These orchids love very bright places, even exposed for a few hours to direct sun rays, particularly in the afternoon or early morning to prevent too high temperatures from causing burns on the leaves; they need a well ventilated and warm environment, not enduring temperatures below 10-15 ° C. In winter, after flowering, the leaves lose, and the pseudobulbs must be kept in a temperate, dry and not very bright place.