Glossary of U...

umbel (n.): An inflorescence where several roughly equal flower stalks radiate from a common point at the top of a short axis. The appearance can be like an umbrella.
umbo (n.): A blunt or rounded projection arising from a surface, as on a pine cone scale.
unctuous (adj.): Greasy to the touch; oily.
uneven-aged (adj.): A condition of forest or stand that contains intermingled trees that differ markedly in age. By convention, a minimum range is 10 to 20 years.
unisexual (adj.): Bears either pistils or stamens (i.e., not both).
united (adj.): Having combined parts.
Compare distinct.

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