say it: uh-STIB-ee
astilbe is a noun meaning "any plant of the genus Astilbe having compound leaves and showy panicles of tiny colorful flowers". It carries one recorded sense.
any plant of the genus Astilbe having compound leaves and showy panicles of tiny colorful flowers
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for astilbe come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.