Polemonium van-bruntiae po·le·mo·niumvanbruntiae uncommon noun 1. pinnate-leaved European perennial having bright blue or white flowers SynonymsJacob's ladderGreek valeriancharityPolemonium caeruleumPolemonium van-bruntiaePolymonium caeruleum van-bruntiae Related words Broader terms polemonium WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.