Glossary: Stem / root structures

Purdue Arboretum botanical terminology reference and learning database.

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Stem / root structures

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Illustrated Growth Forms & Tree Silhouettes

Compare visual architectures: fastigiate, columnar, weeping, spreading, and more.

Fastigiate Columnar Pendulous / Weeping
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Synonyms: winter desiccations

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…

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