Noun | 1. | ![]() dicot genus, magnoliopsid genus - genus of flowering plants having two cotyledons (embryonic leaves) in the seed which usually appear at germination family Gentianaceae, gentian family, Gentianaceae - chiefly herbaceous plants with showy flowers; some are cultivated as ornamentals Gentiana lutea, great yellow gentian - robust European perennial having clusters of yellow flowers calathian violet, Gentiana pneumonanthe, marsh gentian - perennial Eurasian gentian with sky-blue funnel-shaped flowers of damp open heaths |