Polanisia dodecandra po·la·ni·siadodecandra uncommon noun 1. strong-scented herb common in southern United States covered with intermixed gland and hairs SynonymsclammyweedPolanisia graveolensPolanisia dodecandra Related words Broader terms herb Parts Polanisia WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.