Ericaceae — Heath Family
Pyrola americana G.Don
Pyrola americana G.Don
Pyrola americana G.Don is a small forest herb found across parts of Canada and the United States.
Pyrola asarifolia Michx.
Pyrola asarifolia Michx.
Pyrola asarifolia is an evergreen western North American wintergreen species with hard-to-germinate dust-like seeds.
Pyrola chlorantha Sw.
Pyrola chlorantha Sw.
Pyrola chlorantha, or greenflowered wintergreen, is a circumboreal Pyrola species that is endangered in several U.S. states.
Pyrola dentata Sm.
Pyrola dentata Sm.
Pyrola dentata Sm. is a herbaceous plant native to western North America that grows in varied woodland and open rocky habitats.
Pyrola elliptica Nutt.
Pyrola elliptica Nutt.
Pyrola elliptica Nutt. is a small white-flowered plant growing across parts of Canada and the United States.
Pyrola grandiflora Radius
Pyrola grandiflora Radius
Pyrola grandiflora is a circumpolar evergreen perennial subshrub with no confirmed documented medicinal properties.
Pyrola media Sw.
Pyrola media Sw.
Pyrola media, intermediate wintergreen, is a rare declining evergreen perennial flowering plant native to parts of Europe and Western Asia.
Pyrola minor L.
Pyrola minor L.
Pyrola minor L. is a rosette-leaved sclerophyll with nodding pink flowers and 5-segmented nodding capsules.
Pyrola picta Sm.
Pyrola picta Sm.
Pyrola picta Sm. is a perennial heath-family herb native to western North America from southwestern Canada to the southwestern US.
Pyrola rotundifolia L.
Pyrola rotundifolia L.
Pyrola rotundifolia (round-leaved wintergreen) is a Pyrola species with fragrant white flowers that grows across Eurasia.
Rhododendron albiflorum Hook.
Rhododendron albiflorum Hook.
Rhododendron albiflorum is a deciduous white-flowered mountain shrub native to northwestern North America with a disjunct Colorado population.
Rhododendron arboreum Sm.
Rhododendron arboreum Sm.
Rhododendron arboreum Sm. is a large tree-like rhododendron, that holds the record for the world's tallest rhododendron, and is the national flower of Nepal.
Rhododendron aureum Georgi
Rhododendron aureum Georgi
Rhododendron aureum is a flowering Rhododendron species whose foliage is eaten by Boloria freija larvae and produces four specific compounds.
Rhododendron calendulaceum (Michx.) Torr.
Rhododendron calendulaceum (Michx.) Torr.
Rhododendron calendulaceum is a deciduous orange-flowered shrub native to the Appalachian Mountains of the eastern United States.
Rhododendron canadense (L.) Torr.
Rhododendron canadense (L.) Torr.
Rhododendron canadense is a low early-flowering shrub native to northeastern North America that grows in moist acidic habitats.
Rhododendron canescens (Michx.) G.Don
Rhododendron canescens (Michx.) G.Don
Rhododendron canescens is a pink-blooming azalea native to parts of the Eastern United States, growing up to 5 meters tall.
Rhododendron catawbiense Michx.
Rhododendron catawbiense Michx.
Rhododendron catawbiense is an eastern US native evergreen shrub cultivated as an ornamental for its spring violet-purple flowers.
Rhododendron caucasicum Pall.
Rhododendron caucasicum Pall.
Rhododendron caucasicum, a native Transcaucasus and Anatolia flowering shrub, has a cultivar that won the RHS Award of Garden Merit.
Rhododendron columbianum (Piper) Harmaja
Rhododendron columbianum (Piper) Harmaja
Rhododendron columbianum is an evergreen shrub with documented medicinal and insect-repelling uses, though it can be toxic if prepared incorrectly.
Rhododendron dauricum L.
Rhododendron dauricum L.
Rhododendron dauricum L. is a compact semi-evergreen flowering shrub widely grown in garden cultivation.
Rhododendron ferrugineum L.
Rhododendron ferrugineum L.
Rhododendron ferrugineum L. is a moderately toxic alpine shrub that bears pinkish-red summer flowers and grows on acidic siliceous soils.
Rhododendron groenlandicum (Oeder) Kron & Judd
Rhododendron groenlandicum (Oeder) Kron & Judd
Rhododendron groenlandicum is a northern evergreen shrub with traditional uses, though it contains toxic alkaloids.
Rhododendron hirsutum L.
Rhododendron hirsutum L.
Hairy alpenrose (Rhododendron hirsutum) is a European alpine Rhododendron that grows on carbonate-rich soils.
Rhododendron lapponicum (L.) Wahlenb.
Rhododendron lapponicum (L.) Wahlenb.
Rhododendron lapponicum is a small circumpolar evergreen subshrub native to arctic and alpine tundra regions.
Related Families
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