Hackelia amethystina J. T. Howell species accepted

Hackelia bella (J. F. Macbr.) I. M. Johnst. species accepted

Hackelia besseyi (Rydb.) J. L. Gentry species accepted

Hackelia bhutanica R. R. Mill species accepted

Hackelia brachytuba (Diels) I. M. Johnst. species accepted

Hackelia brevicula (Jeps.) J. L. Gentry species accepted

Hackelia californica (A. Gray) I. M. Johnst. species accepted

Hackelia cinerea (Piper) I. M. Johnst. species accepted

Hackelia cronquistii J. L. Gentry species accepted

Hackelia cusickii (Piper) Brand species accepted

Hackelia davisii Cronquist species accepted

Hackelia deflexa (Wahlenb.) Opiz species accepted

Hackelia difformis (Y. S. Lian & J. Q. Wang) Riedl species accepted

Hackelia diffusa (Douglas ex Lehm.) I. M. Johnst. species accepted

Hackelia floribunda (Lehm.) I. M. Johnst. species accepted

Hackelia gracilenta (Eastw.) I. M. Johnst. species accepted

Hackelia hintoniorum (B. L. Turner) Sutorý species accepted

Hackelia hirsuta (Wooton & Standl.) I. M. Johnst. species accepted

Hackelia hispida (A. Gray) I. M. Johnst. species accepted

Hackelia ibapensis L. M. Shultz & J. S. Shultz species accepted

Hackelia latifolia (R. Br.) Dimon & M. A. M. Renner species accepted

Hackelia leonotis I. M. Johnst. species accepted

Hackelia mexicana (Cham. & Schltdl.) I. M. Johnst. species accepted

Hackelia micrantha (Eastw.) J. L. Gentry species accepted

Hackelia mundula (Jeps.) Ferris species accepted

Hackelia virginiana (L.) I. M. Johnst. species accepted

Hackelia macrophylla (Brand) I. M. Johnst. species accepted

Hackelia sessilifructa (Y. S. Lian & J. Q. Wang) Ovczinnikova species accepted

Hackelia patens (Nutt.) I. M. Johnst. species accepted

Hackelia pinetorum (Greene ex A. Gray) I. M. Johnst. species accepted

Hackelia rattanii (Brand) Brand species accepted

Hackelia meeboldii Brand species accepted

Hackelia nervosa (Kellogg) I. M. Johnst. species accepted

Hackelia ursina (Greene ex A. Gray) I. M. Johnst. species accepted

Hackelia velutina (Piper) I. M. Johnst. species accepted

Hackelia stricta I. M. Johnst. species accepted

Hackelia suaveolens (R. Br.) Dimon & M. A. M. Renner species accepted

Hackelia sharsmithii I. M. Johnst. species accepted

Hackelia popovii Czukav. species accepted

Hackelia revoluta (Ruiz & Pav.) I. M. Johnst. species accepted

Hackelia murgabica Czukav. species accepted

Hackelia obtusifolia R. R. Mill species accepted

Hackelia ophiobia R. L. Carr species accepted

Hackelia ciliata (Douglas ex Lehm.) I. M. Johnst. species accepted

Hackelia venusta (Piper) H. St. John species accepted

Hackelia uncinata (Benth.) C. E. C. Fisch. species accepted

Hackelia taylorii Harrod, Malmquist & R. L. Carr species accepted

Hackelia setosa (Piper) I. M. Johnst. species accepted

Hackelia skutchii I. M. Johnst. species accepted

Hackelia hendersonii (Piper) Brand species accepted