A botanical reference guide of morphological terms, plant structures, propagation techniques, and campus flora definitions.
Explore terms organized by botanical structure, morphology, and arboricultural concepts.
Umbel A flat topped or globe shaped flower cluster in which the individual flower stalks are of nearly equal length and arise from a common point Did you know? Carrot-family flowers form umbels, flat or rounded clusters that look like tiny umbrellas.
Umbilicate Having a small depression, like a navel. This feature helps describe plant form, function, or identification.
Umbo A blunt rounded protuberance, as at the center of some fruits or mushroom caps
Umbonate Possessing an UMBO (a blunt rounded protuberance, as at the center of some fruits or mushroom caps)
Utricle A small fruit, thin-walled, one-seeded and more or less inflated like a bladder.
Utricular Of or pertaining to a Utricle; bladder-like. This feature helps describe plant form, function, or identification.
The Purdue Arboretum is a collaboration between the Department of Horticulture and Landscape Architecture and Administrative Operations