A genus of small herbaceous plants in the primrose family, commonly called chaffweed, with tiny flowers.
From Latin 'centum' (hundred) + diminutive suffix '-unculus,' possibly referring to the numerous small parts of the plant.
These are some of the tiniest flowering plants you'll find—so small they're easy to miss in a field—and their Latin name basically means 'tiny hundred-thing,' referring to all their little delicate parts.
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