noun
- a fungus of the genus Geaster, having an outer covering that splits into the form of a star.
- any of various bromeliads of the genus Cryptanthus, native to Brazil, having rosettes of stiff, prickly leaves.
noun
- any of various basidiomycetous saprotrophic woodland fungi of the genus Geastrum, whose brown onion-shaped reproductive body splits into a star shape to release the spores