Richardia shaoyoukengensis S.S.Ying species synonym

Spermacoce ascendens Sessé & Moc. species synonym

Plethyrsis glauca Raf. species synonym

Richardia rosea subsp. albiflora Kuntze subspecies synonym

Richardsonia brasiliensis subsp. dubia Beauverd & Felipp. subspecies synonym

Richardia scabra subsp. chacoensis E.L.Cabral & Bacigalupo subspecies synonym

Richardia rosea subsp. lilacina Kuntze subspecies synonym

Diodia tricocca Torr. & A.Gray species synonym

Richardia cruciata Rusby species accepted

Spermacoce divergens Pohl ex DC. species synonym

Spermacoce sparsa Pohl ex DC. species synonym

Spermacoce lateralis Pohl ex DC. species synonym

Spermacoce richardsonioides C.Wright species synonym

Diodia muricata (Griseb.) Urb. species synonym

Diodia pectidifolia Urb. species synonym

Diodia ciliata Britton & P.Wilson species synonym

Diodia arenicola Britton & P.Wilson species synonym

Spermacoce involucrata Pursh species heterotypic synonym

Spermacoce hirsuta Willd. ex Roem. & Schult. species synonym

Spermacoce hexandra A.Rich. species synonym

Schiedea mexicana Bartl. ex DC. species synonym

Richardia muricata subsp. muricata subspecies synonym

Richardia montana Sessé & Moc. species doubtful

Richardia gandarae Rzed. species accepted

Richardsonia brasiliensis (Gomes) Hayne, 1822 species homotypic synonym

Spermacoce adscendens Pav. ex DC. species heterotypic synonym

Richardia muricata var. pectidifolia (Urb.) W.H.Lewis & R.L.Oliv. variety synonym

Richardia grandiflora (Cham. & Schltdl.) Schult. & Schult.f. species doubtful

Diodia tricocco Torr. & A.Gray species synonym

Richardia pedicellata (K.Schum.) Kuntze species accepted

Richardsonia pedicellata K.Schum. species synonym

Richardsonia acutifolia K.Krause species synonym

Richardia acutifolia (K.Krause) Standl. ex Hoehne species synonym

Richardia schumannii W.H.Lewis & R.L.Oliv. species accepted

Richardia tricocca (Torr. & A.Gray) Standl. species accepted

Crusea tricocca (Torr. & A.Gray) A.Heller species synonym

Richardsonia tricocca (Torr. & A.Gray) K.Schum. ex Loes. species synonym

Richardia grandiflora (Cham. & Schltdl.) Steud. species accepted

Richardia sparsa (Pohl ex DC.) Steud. species synonym

Richardsonia lateralis Pohl ex DC. species synonym

Richardsonia divergens Pohl ex DC. species synonym

Richardia divergens (Pohl ex DC.) Steud. species synonym

Richardia lateralis (Pohl ex DC.) Steud. species synonym

Richardia grandiflora f. albiflora Kuntze form synonym

Richardsonia sparsa Pohl ex DC. species synonym

Richardsonia grandiflora Cham. & Schltdl. species synonym

Richardia lomensis (K.Krause) Standl. species accepted

Richardsonia lomensis K.Krause species synonym

Richardia boliviensis W.H.Lewis & R.L.Oliv. species accepted

Richardia stellaris (Cham. & Schltdl.) Steud. species accepted

Richardia astroites (K.Schum.) Kuntze species synonym

Richardsonia stellaris Cham. & Schltdl. species synonym

Richardsonia stellaris f. robusta Chodat & Hassl. form synonym

Richardsonia stellaris f. linearifolia Chodat & Hassl. form synonym

Richardia pedicellata var. micrantha Kuntze variety synonym

Richardsonia astroites K.Schum. species synonym

Richardia humistrata (Cham. & Schltdl.) Steud. species accepted

Richardia haenkeana (DC.) Steud. species synonym

Richardsonia humistrata Cham. & Schltdl. species synonym

Richardsonia haenkeana DC. species synonym

Richardia muricata (Griseb.) B.L.Rob. species accepted

Richardsonia muricata Griseb. species synonym

Richardia muricata subsp. pectidifolia (Urb.) W.H.Lewis & R.L.Oliv. subspecies synonym

Richardia pectidifolia (Urb.) Borhidi species accepted

Richardia ciliata (Britton & P.Wilson) W.H.Lewis & R.L.Oliv. species accepted

Richardia arenicola (Britton & P.Wilson) W.H.Lewis & R.L.Oliv. species accepted

Richardia scabra L. species accepted

Richardia pilosa Ruiz & Pav. species synonym

Richardsonia scabra (L.) A.St.-Hil. species synonym

Richardsonia cubensis A.Rich. species synonym

Richardia cubensis A.Rich. species synonym

Richardsonia pilosa (Ruiz & Pav.) Kunth species synonym

Richardia scabra var. chacoensis E.L.Cabral & Bacigalupo variety synonym

Richardia procumbens Sessé & Moc. species synonym

Richardia brasiliensis Gomes species accepted

Richardia rosea (A.St.-Hil.) Schult. species synonym

Richardia villosa Sessé & Moc. ex DC. species synonym

Richardsonia adscendens DC. species synonym

Richardia rosea f. albiflora Kuntze form synonym

Richardia sericea Walp. species synonym

Richardsonia brasiliensis (Gomes) Klotzsch species synonym

Richardsonia rosea A.St.-Hil. species synonym

Richardsonia sericea Walp. species synonym

Richardia adscendens (DC.) Steud. species synonym

Richardia rosea f. lilacina Kuntze form synonym

Richardsonia brasiliensis var. dubia Beauverd & Felipp. variety synonym

Richardsonia emetica Mart. species synonym

Richardia emetica (Mart.) Schult. species synonym

Richardia coldenioides Rusby species accepted

Richardia rigidifolia (K.Krause) Standl. species synonym

Richardsonia rigidifolia K.Krause species synonym

Richardsonia coldenioides (Rusby) Buchtien species synonym

Richardia tricocco (Torr. & A.Gray) Standl. species synonym

Richardia grandiflora f. lilacina Kuntze form synonym

Richardsonia lamensis Krause species doubtful

Richardia humistrata (Cham. & Schltdl.) Schult. & Schult.f. species synonym

Richardia grandiflora Britton species doubtful

Richardia pedicellata (K.Schum.) Standl. species synonym

Spermacoce hirsuta Willd. species synonym

Richardsonia lateralis Pohl species homotypic synonym

Richardia acutifolia (K.Krause) Standl. species homotypic synonym

Spermacoce sparsa Pohl species homotypic synonym

Richardsonia tricocca (Torr. & A.Gray) K.Schum. species homotypic synonym

Schiedea mexicana Bartl. species homotypic synonym

Richardsonia sparsa Pohl species homotypic synonym

Richardia villosa Sessé & Moc. species homotypic synonym

Spermacoce adscendens Pav. species homotypic synonym

Spermacoce lateralis Pohl species homotypic synonym

Richardsonia divergens Pohl species homotypic synonym

Spermacoce divergens Pohl species homotypic synonym