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Etymology from Wiktionary, CC BY-SA 4.0.
sphenophyte
Today it means: Any of an ancient type of simple vascular plants of which only the horsetails remain which have hollow stems that produce spores Full definition →
Today it means: Any of an ancient type of simple vascular plants of which only the horsetails remain which have hollow stems that produce spores Full definition →
Etymology from Wiktionary, CC BY-SA 4.0.