| Phlox aciculifolia P.B.Kenn. | Phlox austromontana Coville Microphlox, Canescentes |
| Phlox alyssifolia sevorsa (A.Nelson) Wherry | Phlox alyssifolia Greene Microphlox, Albomarginata |
| Phlox argillacea Clute & Ferris | Phlox pilosa L. Protophlox, Divaricatae |
| Phlox aristata G.Lodd. | Phlox subulata L. Alphaphlox, Subulatae |
| Phlox aristata Michx. | Phlox pilosa L. Protophlox, Divaricatae |
| Phlox azurea G.L.Sm. | Phlox diffusa Benth. Microphlox, Canescentes |
| Phlox bernardina Munz & I.M.Johnst. | Phlox dolichantha A.Gray Alphaphlox, Longifoliae |
| Phlox bifida arkansana D.L.Marsh | Phlox bifida L.C.Beck Alphaphlox, Subulatae |
| Phlox bifida induta Shinners | Phlox oklahomensis Wherry Protophlox, Speciosae |
| Phlox brevistylis A.Nelson | Phlox nana Nutt. Protophlox, Nanae |
| Phlox brittonii Small | Phlox subulata L. Alphaphlox, Subulatae |
| Phlox caesia Eastw. | Phlox gladiformis (M.E.Jones) E.E.Nelson Microphlox, Aculeatae |
| Phlox caespitosa condensata A.Gray, Proc. Amer. Acad. Arts 8: 254 (1870) | Phlox condensata (A.Gray) E.E.Nelson Microphlox, Caespitosae |
| Phlox caespitosa eucaespitosa Brand | Phlox caespitosa Nutt. Microphlox, Caespitosae |
| Phlox caespitosa hendersonii (E.E.Nelson) Brand | Phlox hendersonii (E.E.Nelson) Cronquist Microphlox, Douglasianae |
| Phlox caespitosa pulvinata Wherry, Notul. Nat. Acad. Nat. Sci., Philadelphia 87: 10 (1941) | Phlox pulvinata (Wherry) Cronquist Microphlox, Caespitosae |
| Phlox caespitosa rigida (Benth.) A.Gray | Phlox rigida Benth. Microphlox, Douglasianae |
| Phlox caldriana Courtois ex Steud. | Phlox carolina L. Alphaphlox, Ovatae |
| Phlox canadensis Sweet | Phlox divaricata L. Protophlox, Divaricatae |
| Phlox carolina alta Wherry | Phlox carolina L. Alphaphlox, Ovatae |
| Phlox carolina ovata (L.) Benth. | Phlox ovata L. Alphaphlox, Ovatae |
| Phlox caroliniana Hill | Phlox carolina L. Alphaphlox, Ovatae |
| Phlox catolina nitida (Pursh) Benth. | Phlox carolina L. Alphaphlox, Ovatae |
| Phlox cernua E.E.Nelson | Phlox longifolia Nutt. Alphaphlox, Longifoliae |
| Phlox coldryana Paxton | Phlox carolina L. Alphaphlox, Ovatae |
| Phlox condensata hendersonii E.E.Nelson, Revis. W. N. Amer. Phlox 14 (1899) | Phlox hendersonii (E.E.Nelson) Cronquist Microphlox, Douglasianae |
| Phlox cortezana A.Nelson | Phlox longifolia Nutt. Alphaphlox, Longifoliae |
| Phlox covillei E.E.Nelson, Revis. W. N. Amer. Phlox. 15 (1899) | Phlox condensata (A.Gray) E.E.Nelson Microphlox, Caespitosae |
| Phlox crassifolia G.Lodd. | Phlox stolonifera Sims Alphaphlox, Stoloniferae |
| Phlox cyanea Eastw. | Phlox austromontana Coville Microphlox, Canescentes |
| Phlox dasyphylla Brand | Phlox multiflora A.Nelson Microphlox, Multiflorae |
| Phlox dejecta A.Nelson & P.B.Kenn. | Phlox condensata (A.Gray) E.E.Nelson Microphlox, Caespitosae |
| Phlox depressa Rydb. | Phlox multiflora A.Nelson Microphlox, Multiflorae |
| Phlox divaricata albiflora auct. | Phlox divaricata L. Protophlox, Divaricatae |
| Phlox dolichantha bernardina (Munz & I.M.Johnst.) Jeps. | Phlox dolichantha A.Gray Alphaphlox, Longifoliae |
| Phlox douglasii andicola Britton, Mem. Torrey Bot. Club 5: 269 (1894) | Phlox andicola (Britton) E.E.Nelson Microphlox, Multiflorae |
| Phlox douglasii austromontana (Coville) Jeps. & H.Mason | Phlox austromontana Coville Microphlox, Canescentes |
| Phlox douglasii caespitosa (Nutt.) H.Mason | Phlox caespitosa Nutt. Microphlox, Caespitosae |
| Phlox douglasii covillei (E.E.Nelson) Jeps. | Phlox condensata (A.Gray) E.E.Nelson Microphlox, Caespitosae |
| Phlox douglasii diffusa (Benth.) A.Gray | Phlox diffusa Benth. Microphlox, Canescentes |
| Phlox douglasii hendersonii (E.E.Nelson) M.Peck | Phlox hendersonii (E.E.Nelson) Cronquist Microphlox, Douglasianae |
| Phlox douglasii rigida (Benth.) Wherry | Phlox rigida Benth. Microphlox, Douglasianae |
| Phlox floridana bella Wherry | Phlox floridana Benth. Protophlox, Divaricatae |
| Phlox gilioides A.Nelson | Phlox tenuifolia E.E.Nelson Protophlox, Tenuifoliae |
| Phlox glaberrima angustissima Brand | Phlox carolina L. Alphaphlox, Ovatae |
| Phlox glomerata Nutt. | Phlox divaricata L. Protophlox, Divaricatae |
| Phlox gooddingii A.Nelson & P.B.Kenn. | Phlox gladiformis (M.E.Jones) E.E.Nelson Microphlox, Aculeatae |
| Phlox grahamii Wherry | Phlox longifolia Nutt. Alphaphlox, Longifoliae |
| Phlox grayi Wooton & Standl. | Phlox longifolia Nutt. Alphaphlox, Longifoliae |
| Phlox hentzii A.Nelson | Phlox nivalis G.Lodd. Protophlox, Speciosae |
| Phlox heterophylla Beauverd ex Brand | Phlox carolina L. Alphaphlox, Ovatae |
| Phlox humilis Douglas ex Hook. | Phlox longifolia Nutt. Alphaphlox, Longifoliae |
| Phlox involucrata Alph.Wood | Phlox amoena Sims Protophlox, Divaricatae |
| Phlox kelseyi albomarginata (M.E.Jones) Brand | Phlox albomarginata M.E.Jones Microphlox, Albomarginata |
| Phlox latifolia Michx. | Phlox ovata L. Alphaphlox, Ovatae |
| Phlox linearifolia (Hook.) A.Gray | Phlox longifolia Nutt. Alphaphlox, Longifoliae |
| Phlox listoniana Sweet ex J.Forbes | Phlox carolina L. Alphaphlox, Ovatae |
| Phlox longifolia brevifolia (A.Gray) H.Mason | Phlox longifolia Nutt. Alphaphlox, Longifoliae |
| Phlox longifolia gladiformis M.E.Jones, Proc. Calif. Acad. Sci. ser. 2. 5: 711 (1895) | Phlox gladiformis (M.E.Jones) E.E.Nelson Microphlox, Aculeatae |
| Phlox longifolia tenuifolia (E.E.Nelson) A.Gray | Phlox tenuifolia E.E.Nelson Protophlox, Tenuifoliae |
| Phlox longituba A.Heller | Phlox dolichantha A.Gray Alphaphlox, Longifoliae |
| Phlox mesoleuca alba C.H.MĂĽll. | Phlox mesoleuca Greene Protophlox, Nanae |
| Phlox montana Raf. | Phlox ovata L. Alphaphlox, Ovatae |
| Phlox multiflora intermedia Brand | Phlox multiflora A.Nelson Microphlox, Multiflorae |
| Phlox nana alborosea Brand | Phlox nana Nutt. Protophlox, Nanae |
| Phlox nana ensifolia Wherry | Phlox mesoleuca Greene Protophlox, Nanae |
| Phlox nitida Pursh | Phlox carolina L. Alphaphlox, Ovatae |
| Phlox nuttaliana G.Don | Phlox floridana Benth. Protophlox, Divaricatae |
| Phlox nuttalliana G.Don | Phlox floridana Benth. Protophlox, Divaricatae |
| Phlox nuttallii Courtois ex Steud, | Phlox floridana Benth. Protophlox, Divaricatae |
| Phlox obovata Muhl. ex Roem. & Schult. | Phlox stolonifera Sims Alphaphlox, Stoloniferae |
| Phlox ovata carolina (L.) Voss | Phlox carolina L. Alphaphlox, Ovatae |
| Phlox ovata elatior A.Gray | Phlox ovata L. Alphaphlox, Ovatae |
| Phlox ovata pulchra Wherry, Bartonia 16: 37 (1935) | Phlox pulchra (Wherry) Wherry |
| Phlox patula A.Nelson | Phlox multiflora A.Nelson Microphlox, Multiflorae |
| Phlox pilosa albiflora MacMill. | Phlox pilosa L. Protophlox, Divaricatae |
| Phlox pilosa amoena (Sims) Pursh | Phlox amoena Sims Protophlox, Divaricatae |
| Phlox pilosa floridana (Benth.) Alph.Wood | Phlox floridana Benth. Protophlox, Divaricatae |
| Phlox pinifolia Brand | Phlox austromontana Coville Microphlox, Canescentes |
| Phlox piperi E.E.Nelson | Phlox caespitosa Nutt. Microphlox, Caespitosae |
| Phlox planitiarum A.Nelson | Phlox andicola (Britton) E.E.Nelson Microphlox, Multiflorae |
| Phlox procumbens A.Gray | Phlox amoena Sims Protophlox, Divaricatae |
| Phlox prostrata Aiton ex Sweet | Phlox stolonifera Sims Alphaphlox, Stoloniferae |
| Phlox puberula (E.E.Nelson) A.Nelson | Phlox longifolia Nutt. Alphaphlox, Longifoliae |
| Phlox reptans Michx. | Phlox stolonifera Sims Alphaphlox, Stoloniferae |
| Phlox sabini Douglas | Phlox speciosa Pursh Protophlox, Speciosae |
| Phlox setacea L. | Phlox subulata L. Alphaphlox, Subulatae |
| Phlox sevorsa A.Nelson | Phlox alyssifolia Greene Microphlox, Albomarginata |
| Phlox shepherdii Penny ex Sweet | Phlox carolina L. Alphaphlox, Ovatae |
| Phlox sibirica pulvinata (Wherry) W.A.Weber | Phlox pulvinata (Wherry) Cronquist Microphlox, Caespitosae |
| Phlox sibirica richardsonii (Hook.) Hultén | Phlox richardsonii Hook. Microphlox, Sibiricae |
| Phlox speciosa alba H.St.John | Phlox viscida E.E.Nelson Alphaphlox, Longifoliae |
| Phlox speciosa elatior Hook. | Phlox speciosa Pursh Protophlox, Speciosae |
| Phlox speciosa linearifolia Hook. | Phlox longifolia Nutt. Alphaphlox, Longifoliae |
| Phlox speciosa woodhousei A.Gray, Proc. Amer. Acad. Arts 8: 256 (1870) | Phlox woodhousei (A.Gray) E.E.Nelson Protophlox, Speciosae |
| Phlox stansburyi (Torr.) A.Heller | Phlox longifolia Nutt. Alphaphlox, Longifoliae |
| Phlox stansburyi hirsuta (E.E.Nelson) Jeps. | Phlox hirsuta E.E.Nelson |
| Phlox stansburyi longituba (A,Heller) Wherry | Phlox dolichantha A.Gray Alphaphlox, Longifoliae |
| Phlox stansburyi viscida (E.E.Nelson) Brand | Phlox viscida E.E.Nelson Alphaphlox, Longifoliae |
| Phlox stolonifera crassifolia (G.Lodd.) D.Don | Phlox stolonifera Sims Alphaphlox, Stoloniferae |
| Phlox subulata albiflora Britton | Phlox subulata L. Alphaphlox, Subulatae |
| Phlox subulata nivalis (G.Lodd.) Brand | Phlox nivalis G.Lodd. Protophlox, Speciosae |
| Phlox suffruticosa Vent. | Phlox carolina L. Alphaphlox, Ovatae |
| Phlox superba Brand | Phlox longifolia Nutt. Alphaphlox, Longifoliae |
| Phlox tenuis Wooton & Standl. | Phlox longifolia Nutt. Alphaphlox, Longifoliae |
| Phlox triflora Sweet | Phlox ovata L. Alphaphlox, Ovatae |
| Phlox tumulosa Wherry, Notul. Nat. Acad. Nat. Sci. Philadelphia 113: 10 (1942) | Phlox griseola Wherry Microphlox, Caespitosae |
| Phlox vernalis Salisb. | Phlox divaricata L. Protophlox, Divaricatae |
| Phlox villosissima Small | Phlox pilosa L. Protophlox, Divaricatae |
| Phlox viridis compacta (Brand) Wherry | Phlox longifolia Nutt. Alphaphlox, Longifoliae |
| Phlox visenda A.Nelson | Phlox longifolia Nutt. Alphaphlox, Longifoliae |
| Phlox walteri (A.Gray) Chapm. | Phlox amoena Sims Protophlox, Divaricatae |
| Phlox wherryi Heath | Phlox andicola (Britton) E.E.Nelson Microphlox, Multiflorae |
| Phlox whitedii E.E.Nelson | Phlox speciosa Pursh Protophlox, Speciosae |
| Phlox woodhousei oculata A.Nelson | Phlox woodhousei (A.Gray) E.E.Nelson Protophlox, Speciosae |