Ventral On the inward or front surface, as in the upper surface of a leaf.
Arboretum Botanical Glossary
A botanical reference guide of morphological terms, plant structures, propagation techniques, and campus flora definitions.
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Explore terms organized by botanical structure, morphology, and arboricultural concepts.
Verticil An arangement of similar parts around a central axis; a whorl
Virgate Straight, slender and erect. This feature helps describe plant form, function, or identification.
Viscid Sticky or gummy. This feature helps describe plant form, function, or identification. Did you know? Viscid plant surfaces can trap small insects, pollen, or debris because they are sticky.
Wing A thin, flat margin bordering or extending from a structure
winter desiccation Winter desiccation, or winter burn, occurs when evergreens lose more moisture through needles or leaves due to wind and sun than their roots can replace from frozen soil. Symptoms include brown/red foliage (often on the south/west side) and twig dieback. Prevent it by watering deeply in autumn, mulching, and using burlap windbreaks. Did you know? Winter desiccation often affects broadleaf evergreens because leaves…
Xeric Dry, or pertaining to dry areas. This term helps explain how a plant grows, survives, spreads, or fits into its habitat. Did you know? Xeric plants often have small leaves, waxy surfaces, deep roots, or water-storing tissues that help them survive dry sites.
Zonate Marked or colored in concentric circular rings. This feature helps describe plant form, function, or identification.