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Botanical Nerd Word: Orthostichous

Orthostichous: With parts arranged in straight ranks or rows.*

The individual flowers in the flowering spikes of this obedient plant (Physostegia) are arranged in straight, vertical lines up the flower stalk.

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

 

 

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