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  Plantae
      Charophyta
        Streptophytina
            Equisetopsida
              Magnoliidae
                    Rosales
                            Urticaceae
                                     Boehmeria
                                             Boehmeria bullata
                                               Boehmeria bullata subsp. coriacea
                                                     [Boehmeria coriacea]
                                             Boehmeria caudata
                                             Boehmeria celtidifolia
                                                   [Boehmeria arbuscula]
                                             Boehmeria cylindrica
                                                   [Boehmeria austrina]
                                                   [Boehmeria decurrens]
                                                   [Boehmeria drummondiana]
                                                   [Boehmeria lateriflora]
                                                   [Boehmeria scabra]
                                                   [Urtica cylindrica]
                                                   Boehmeria cylindrica f. cuneata
                                               Boehmeria cylindrica var. drummondiana
                                               Boehmeria cylindrica var. scabra
                                             Boehmeria nivea
                                                   [Urtica nivea]
                                             Boehmeria ramiflora
                                             Boehmeria repens
                                             Boehmeria virgata
                                               Boehmeria virgata subsp. macrophylla
                                                     [Boehmeria platyphylla]
                                     Cecropia
                                             Cecropia adenopus
                                             Cecropia elongata
                                             Cecropia obtusifolia
                                             Cecropia peltata
                                             Cecropia schreberiana
                              Cecropioideae
                                     Musanga
                                             Musanga cecropioides
                                     Coussapoa
                                             Coussapoa ferruginea
                                             Coussapoa oligocephala
                                             Coussapoa purpusii
                                             Coussapoa trinervia
                                     Cypholophus
                                             Cypholophus friesianus
                                     Dendrocnide
                                             Dendrocnide cordata
                                     Fleurya
                                     Helxine
                                     Hesperocnide
                                             Hesperocnide tenella
                                     Laportea
                                             Laportea aestuans
                                                   [Fleurya aestuans]
                                                   [Urtica aestuans]
                                             Laportea alatipes
                                                   [Fleurya monticola]
                                             Laportea canadensis
                                                   [Urtica canadensis]
                                     Morocarpus
                                     Parietaria
                                             Parietaria debilis
                                             Parietaria floridana
                                                   [Parietaria nummularia]
                                             Parietaria hespera
                                               Parietaria hespera var. californica
                                               Parietaria hespera var. hespera
                                             Parietaria judaica
                                                   [Parietaria diffusa]
                                             Parietaria officinalis
                                             Parietaria pensylvanica
                                                   [Parietaria obtusa]
                                                   [Parietaria occidentalis]
                                               Parietaria pensylvanica var. obtusa
                                             Parietaria praetermissa
                                     Pilea
                                             Pilea depressa
                                             Pilea fontana
                                                   [Adicea fontana]
                                                   [Adicea opaca]
                                                   [Pilea opaca]
                                             Pilea herniarioides
                                                   [Urtica herniarioides]
                                             Pilea involucrata
                                             Pilea microphylla
                                                   [Parietaria microphylla]
                                               Pilea microphylla var. trianthemoides
                                             Pilea nummulariifolia
                                                   [Urtica nummulariifolia]
                                             Pilea pumila
                                               Pilea pumila var. deamii
                                               Pilea pumila var. pumila
                                                     [Urtica pumila]
                                             Pilea trianthemoides
                                                   [Pilea serpyllifolia]
                                                   [Urtica trianthemoides]
                                     Pipturus
                                             Pipturus argenteus
                                     Pouzolzia
                                             Pouzolzia formicaria
                                             Pouzolzia zeylanica
                                                   [Parietaria zeylanica]
                                     Soleirolia
                                             Soleirolia soleirolii
                                                   [Helxine soleirolii]
                                     Urera
                                             Urera baccifera
                                             Urera caracasana
                                     Urtica
                                             Urtica ballotifolia
                                             Urtica chamaedryoides
                                               Urtica chamaedryoides var. runyonii
                                             Urtica dioica
                                               Urtica dioica subsp. dioica
                                               Urtica dioica var. angustifolia
                                               Urtica dioica var. californica
                                               Urtica dioica var. dioica
                                               Urtica dioica var. gracilis
                                               Urtica dioica var. holosericea
                                               Urtica dioica var. lyallii
                                               Urtica dioica var. occidentalis
                                               Urtica dioica var. procera
                                               Urtica dioica ssp. dioica
                                               Urtica dioica ssp. gracilis
                                                     [Urtica californica]
                                                     [Urtica cardiophylla]
                                                     [Urtica gracilis var. greenei]
                                                     [Urtica gracilis var. holosericea]
                                                     [Urtica gracilis var. latifolia]
                                                     [Urtica gracilis]
                                                     [Urtica lyallii var. californica]
                                                     [Urtica lyallii]
                                                     [Urtica major]
                                                     [Urtica procera]
                                                     [Urtica strigosissima]
                                                     [Urtica viridis]
                                               Urtica dioica ssp. holosericea
                                                     [Urtica breweri]
                                                     [Urtica gracilis ssp. holosericea]
                                                     [Urtica holosericea]
                                                     [Urtica trachycarpa]
                                             Urtica gracilenta
                                             Urtica urens
                                     Urticastrum
                                             Urticastrum divaricatum
                              Urticoideae
                                     Elatostema
                                             Elatostema welwitschii
                                     Gyrotaenia
                                             Gyrotaenia myriocarpa
                                     Myriocarpa
                                             Myriocarpa heterospicata
                                                   [Myriocarpa heterostachya]
                                             Myriocarpa longipes
                                                   [Myriocarpa magnifica]
                                     Oreocnide
                                             Oreocnide trinervis

Problematic Rooting (859499)
                                               Urtica gracilis subsp. gracilis
                                                     [Urtica dioica subsp. gracilis]
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