Plectranthus plant showing decussate leaf arrangement
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Botanical Nerd Word: Decussate

Decussate: Arranged along the stem in pairs, with each pair at right angles to the pair above or below.*

This Plectranthus shows a decussate leaf arrangement.

*Harris, J.G., Harris, M.W. (2001). Plant identification terminology: An illustrated glossary (2nd ed.). Spring Lake: Spring Lake Publishing.

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