penstemon rydbergii is a noun meaning "plant with whorls of small dark blue-violet flowers; Washington to Wyoming and south to California and Colorado". It carries one recorded sense.
plant with whorls of small dark blue-violet flowers; Washington to Wyoming and south to California and Colorado
Definitions, synonyms and semantic relations for penstemon rydbergii come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.