- a plant propagated by means of underground buds.
- a perennial plant that propagates by means of buds below the soil surface
- A perennial plant with an underground food storage organ, such as a bulb, tuber, corm, or rhizome. The parts of the plant that grow above ground die away during adverse conditions, as in winter or during the dry season, and grow again from buds that are on or within the underground portion when conditions improve. Crocuses and tulips are geophytes.