Learn about the comparison between Orchidaceae and Asteraceae. Comparison # Orchidaceae: 1. Habit-Plants terrestrial, often vinelike, mostly herbaceous, perennating by pseudo-bulbs; epiphytes, saprophytes or even parasites. 2. Stem-Stem with scattered vascular bundles. 3. Leaves-Simple, venation parallel. 4. Inflorescence-Solitary, raceme or spike. 5. Flower-Large, gaudy and of variable shape, trimerous, epigynous. All flowers irregular and zygomorphic. […]