In botany, lacking a pappus (the feathery crown that allows seeds to be dispersed by wind).
From epi- (upon/negation) + pappus (downy bristles) + -ose (possessing). Describes seeds without the signature fluffy dispersal mechanism.
Dandelion seeds have the most famous pappus—that fluffy parachute—but epappose seeds don't. This completely changes how they spread and where a plant population can establish itself, making it a huge evolutionary difference.
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