Egeria (plant) Egeria (plant) Egeria is a genus of three species of aquatic plants in the family Hydrocharitaceae described as a genus in 1849. native to warm-temperate South America. The genus was formerly included in the related genus "Elodea", from which it differs in having the leaves in whorls of four or more, not three, and in having more conspicuous flowers with larger (particularly broader) petals. "Egeria" is found in many temperate and subtropical regions throughout the world as an introduced, or "alien", species, meaning a species that does not originate from the area in which it is found. In many places,
Trigonidium (plant) base with sepals spreading. The sepals are larger than the petals and the petals are larger than the lip. The lip is trilobed and not spurred. The flowers have shiny pads and eyespots that lure male bees to perform pseudocopulation with the blossoms. Plants of the genus grow well in pots with standard epiphyte mix, in intermediate conditions with light shade and high humidity. Plants should be kept dry but not so dry that pseudobulbs shrivel. Trigonidium (plant) Trigonidium, abbreviated as Trgdm in horticultural trade, is a genus of orchids comprising roughly twenty species found from Mexico to Brazil. "Trigonidium"