Any of the genus Polemonium of gamopetalous perennial herbs.(noun)
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Use "polemonium" in a sentence
"The pretty pinnate leaves of the blue-flowered polemonium are sufficient explanation for the common name Jacobs-ladder, even though that name does not properly belong to our species."
"One of the most attractive and beautiful of these alpine flowers is the blue honeysuckle or polemonium, about an inch in height."