achene
A B C D E F G H I K L M N O P R S T U W Z

A dry, indehiscent one-seeded fruit with a papery / leathery fruit wall, and the seed attached to the fruit wall at only one point e.g. a sunflower seed.

Alternative form for achene : achenes.

achene id.jpg

© Botany Department, Trinity College Dublin; Chloé Galley