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Often referred to as sago palms, cycads are hardy evergreen yard plants that grow in warm states, such as Florida, North Carolina, and Georgia, and are also used as ornamental houseplants.1 Lately, their increased use as houseplants has made them available all over the world.2 Cycads, such as Zamia floridana, Cycas revoluta, and Cycas circinalis, arose from vegetation that dominated in the Mesozoic era.

Cycad leaves are one-pinnately divided and glossy green (Figure 1). The leaflets are narrow, with a sunken midrib, and the margins roll downward. These palmlike plants are dioecious (separate male and female plants in the same species). The female plant has a cone-shaped middle ...

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