two-keeled

Updated: August 7, 2026

The axillary flower is protected on the opposite side by a two-keeled inner palet. Each flower exhibits three stamens and an ovary. In the six-rowed barley all the three flowers of a triple spikelet are fertile, and each of them has a long awn on the top of the outer palet.

Hugo de Vries - Species and Varieties, Their Origin by Mutation