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Pronunciation: PEN-ste-mon kal-KARE-ee-us
Common name: Limestone beardtongue
Family: Plantaginaceae (Plantain)
Habitat: Dry crevices in limestone, 3500'-6000', creosote bush scrub to pinyon-juniper woodland, joshua tree scrub, northern desert mountains
Blooming period: April to May
Name derivations: 1) Penstemon 2) calcareus