Psilotum nudum
plant
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whisk fern
- In whisk fern
complanatum, P. nudum, and P. x intermedium) of pantropical plants with whisklike green stems and scalelike appendages called “enations,” which may represent reduced leaves, but they contain no vascular tissue (veins). P. nudum also reaches into the subtropics, growing as far north as the southern United…
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