rizom

plural rizoms · alternative rizome

1. alsogovernmentA plume or ear, as of oats or corn.

   Rizoms of Oats, [...] Rizomes, the spearsed ears of Oats in the Straw, a Rizome head, a chaffy sparsed head

   1688, Randle Holme, The academy of armory, book 2, chapter VI

   2 more examples

   … the Corns in the Husk. / Some, in stead of an Ear, have a rizom (or plume) conteining the Corns by bunches, as, Oats, …

   1659, Johann Amos Comenius, Joh. Amos Commenii Orbis sensualium pictus, […], XVII, Corn

   The corn, or fruit, at the top of an oat-stalk is not generally termed the ear, but the rizom; and in old heraldry it is sometimes blazoned an oat-stalk, bladed and rizomed.

   1828, William Berry, Encyclopædia Heraldica: Or, Complete Dictionary of Heraldry