| Boraginaceae | |
Johnstonella albida
| (Kunth) M.E. Mabry & M.G. Simpson | Phytotaxa 425(5): 286 | 2019 |
| Boraginaceae | |
Johnstonella angelica
| (I.M. Johnst.) Hasenstab & M.G. Simpson | Syst. Bot. 37(3): 754 | 2012 |
| Boraginaceae | ! |
Johnstonella angustifolia
| (Torr.) Hasenstab & M.G. Simpson | Syst. Bot. 37(3): 754 | 2012 |
| Boraginaceae | |
Johnstonella costata
| (Brandegee) Hasenstab & M.G. Simpson | Syst. Bot. 37(3): 754 | 2012 |
| Boraginaceae | |
Johnstonella diplotricha
| (Phil.) Hasenstab & M.G. Simpson | Syst. Bot. 37(3): 754 | 2012 |
| Boraginaceae | |
Johnstonella echinosepala
| (J.F. Macbr.) Hasenstab & M.G. Simpson | Syst. Bot. 37(3): 754 | 2012 |
| Boraginaceae | |
Johnstonella fastigiata
| (I.M. Johnst.) Hasenstab & M.G. Simpson | Syst. Bot. 37(3): 754 | 2012 |
| Boraginaceae | |
Johnstonella geohintonii
| (B.L. Turner) M.G. Simpson & R.B. Kelley | Phytotaxa 425(5): 286 | 2019 |
| Boraginaceae | |
Johnstonella grayi
| (Vasey & Rose) Hasenstab & M.G. Simpson | Syst. Bot. 37(3): 754 | 2012 |
| Boraginaceae | |
Johnstonella gypsites
| (I.M. Johnst.) Hasenstab & M.E. Mabry | Phytotaxa 425(5): 286 | 2019 |
| Boraginaceae | |
Johnstonella holoptera
| (A. Gray) Hasenstab & M.G. Simpson | Syst. Bot. 37(3): 754 | 2012 |
| Boraginaceae | |
Johnstonella inaequata
| (I.M. Johnst.) Brand | Repert. Spec. Nov. Regni Veg. 21(8–20): 249 | 1925 |
| Boraginaceae | |
Johnstonella mexicana
| (Brandegee) M.E. Mabry & M.G. Simpson | Phytotaxa 425(5): 286 | 2019 |
| Boraginaceae | |
Johnstonella micromeres
| (A. Gray) Hasenstab & M.G. Simpson | Syst. Bot. 37(3): 754 | 2012 |
| Boraginaceae | |
Johnstonella parviflora
| (Phil.) Hasenstab & M.G. Simpson | Syst. Bot. 37(3): 754 | 2012 |
| Boraginaceae | |
Johnstonella punensis
| M.G. Simpson & Muñoz-Schick | PhytoKeys 197(149-164): , f. 1, 2, 3,4, 5, 6, 7 | 2022 |
| Boraginaceae | |
Johnstonella pusilla
| (Torr. & A. Gray) Hasenstab & M.G. Simpson | Syst. Bot. 37(3): 754 | 2012 |
| Boraginaceae | |
Johnstonella racemosa
| (S. Watson ex A. Gray) Brand | Repert. Spec. Nov. Regni Veg. 21(8–20): 249 | 1925 |
| Boraginaceae | |
Johnstonella sheylae
| G.S. Hinton & G.L. Nesom | Phytoneuron 2021-14: 1-2, f. 1-6 | 2021 |