Distribution Penstemon species are found in most of North America. One species, Penstemon gentianoides, grows as far south as Guatemala naturally and has been introduced to Costa Rica. Another species, Penstemon gormanii, grows in the Northwest Territories of Canada. No members of the genus grow natively in Nunavut, or east of Quebec in Canada. In addition to the same species as found in the Northwest Territories, two others also grow in parts of Alaska, Penstemon procerus and Penstemon serrulatus. Most of its species are found in the Nearctic botanical realm, but with a few species also found in the North American portion of the Neotropics. There are 70 species found in the state of Utah, more than anywhere else in its range and making this its center of diversity.
Distribution Penstemon species are found in most of North America. One ?species, Penstemon genti:anoides grows as far south as Guatemala naturally and has been introduced to Costa Rica. Another species, Penstemon gormanii, grows in the Northwest Territories of Canada. No members of the genus grow natively in Nunavut, or east of Quebec in Canada. In addition to the same species as found in the Northwest Territories, two others also grow in parts of Alaska, Penstemon procerus and Penstemon serrulatus. Most of its species are found in the Nearctic botanical realm, but with a few species also found in the North American portion of the Neotropics. There are 70 species found i:n the state of Utah, more than anywhere else in its range and making this its center of diversity.