Polemonium elegans, the elegant Jacob's-ladder,[1] is species of the phlox family found in the United States.[2]
^USDA, NRCS (n.d.). "Polemonium elegans". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 20 July 2016.
Polemoniumelegans, the elegant Jacob's-ladder, is species of the phlox family found in the United States. USDA, NRCS (n.d.). "Polemoniumelegans". The...
meadowsweet (Filipendula ulmaria) and sometimes the uncommon Greek valerian (Polemonium caeruleum). Most willowherbs will not tolerate shade trees and thus are...
Sattler, R. 1997. Expression of shoot processes in leaf development of Polemonium caeruleum. Botanische Jahrbücher für Systematik 119: 563-582. Lacroix...
capensis Hydrolea zeylanica Navarretia leucocephala Polemonium acutiflorum Polemonium pulcherrimum Polemonium viscosum There are 277 species and 11 subspecies...