Long'S Jacob'S-Ladder (Polemonium longii)
Description
Polemonium, commonly called�Jacob's ladder, is a genus of between 25 and 40 species of�flowering plants�in the family�Polemoniaceae, native to cool temperate to arctic regions of the�Northern Hemisphere. One species also occurs in the southern�Andes�in�South America. Many of the species grow at high altitudes in mountains. Most of the uncertainty in the number of species relates to those in Eurasia, many of which have been synonymized with�P. caeruleum�in the past
Taxonomic tree
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Domain: Eukarya
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Kingdom: Plantae
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Phylum: Magnoliophyta
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Class: Magnoliopsida
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Order: Ericales
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Family: Polemoniaceae
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Genus: Polemonium
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