White ash, Fraxinus americana.
Weber
Richard W
RW
National Jewish Medical & Research Center, 1400 Jackson Street, Room B103a, Denver, CO 80206, USA.
D031661:Fraxinus / Q000033:anatomy & histology / Q000254:growth & development / Q000276:immunology; D006801:Humans; D006255:Rhinitis, Allergic, Seasonal / Q000276:immunology