Latin Lookup
Species within the genus "Houstonia"
| Family | Genus | Species | Common Name | More Info |
| Rubiaceae | Houstonia | acerosa | needleleaf bluet | PF |
| Rubiaceae | Houstonia | acerosa | Houstonia acerosa | PF |
| Rubiaceae | Houstonia | angustifolia | Hedyotis nigricans var. nigricans | |
| Rubiaceae | Houstonia | angustifolia | Hedyotis nigricans var. nigricans | |
| Rubiaceae | Houstonia | angustifolia | Hedyotis nigricans var. nigricans | |
| Rubiaceae | Houstonia | butterwickiae | Hedyotis butterwickiae | |
| Rubiaceae | Houstonia | caerulea | Houstonia caerulea | PF |
| Rubiaceae | Houstonia | caerulea | azure bluet | PF |
| Rubiaceae | Houstonia | calycosa | Houstonia purpurea var. calycosa | |
| Rubiaceae | Houstonia | canadensis | Canadian summer bluet | PF |
| Rubiaceae | Houstonia | canadensis | Houstonia canadensis | PF |
| Rubiaceae | Houstonia | ciliolata | Houstonia canadensis | |
| Rubiaceae | Houstonia | correllii | Correll's bluet | PF |
| Rubiaceae | Houstonia | croftiae | Croft's bluet | PF |
| Rubiaceae | Houstonia | filifolia | Hedyotis nigricans var. nigricans | |
| Rubiaceae | Houstonia | floridana | Hedyotis nigricans var. floridana | |
| Rubiaceae | Houstonia | greenei | Hedyotis greenei | |
| Rubiaceae | Houstonia | humifusa | matted bluet | PF |
| Rubiaceae | Houstonia | L. | bluet | |
| Rubiaceae | Houstonia | lanceolata | Houstonia purpurea var. calycosa | |
| Rubiaceae | Houstonia | longifolia | Houstonia longifolia | PF |
| Rubiaceae | Houstonia | longifolia | longleaf summer bluet | PF |
| Rubiaceae | Houstonia | longifolia | Houstonia longifolia | PF |
| Rubiaceae | Houstonia | longifolia | Houstonia longifolia | PF |
| Rubiaceae | Houstonia | micrantha | southern bluet | PF |
| Rubiaceae | Houstonia | minima | Houstonia pusilla | |
| Rubiaceae | Houstonia | montana | Houstonia purpurea var. montana | |
| Rubiaceae | Houstonia | mullerae | Hedyotis mullerae | |
| Rubiaceae | Houstonia | nigricans | Hedyotis nigricans var. nigricans | |
| Rubiaceae | Houstonia | nigricans | Hedyotis nigricans var. floridana | |
| Rubiaceae | Houstonia | nigricans | Hedyotis nigricans var. pulvinata | |
| Rubiaceae | Houstonia | ouachitana | Ouachita bluet | PF |
| Rubiaceae | Houstonia | parviflora | Greenman's bluet | PF |
| Rubiaceae | Houstonia | patens | Houstonia pusilla | |
| Rubiaceae | Houstonia | polypremoides | Houstonia acerosa | |
| Rubiaceae | Houstonia | polypremoides | Houstonia acerosa | |
| Rubiaceae | Houstonia | procumbens | roundleaf bluet | PF |
| Rubiaceae | Houstonia | pulvinata | Hedyotis nigricans var. pulvinata | |
| Rubiaceae | Houstonia | purpurea | Houstonia purpurea var. purpurea | PF |
| Rubiaceae | Houstonia | purpurea | Venus' pride | PF |
| Rubiaceae | Houstonia | purpurea | Venus' pride | PF |
| Rubiaceae | Houstonia | purpurea | Venus' pride | PF |
| Rubiaceae | Houstonia | purpurea | Venus' pride | PF |
| Rubiaceae | Houstonia | purpurea | Houstonia longifolia | PF |
| Rubiaceae | Houstonia | pusilla | tiny bluet | PF |
| Rubiaceae | Houstonia | pygmaea | Houstonia rosea | |
| Rubiaceae | Houstonia | rigidiuscula | Hedyotis nigricans var. nigricans | |
| Rubiaceae | Houstonia | rosea | rose bluet | PF |
| Rubiaceae | Houstonia | rotundifolia | Houstonia procumbens | |
| Rubiaceae | Houstonia | rubra | red bluet | PF |
| Rubiaceae | Houstonia | rupicola | Hedyotis angulata | |
| Rubiaceae | Houstonia | salina | Hedyotis nigricans var. nigricans | |
| Rubiaceae | Houstonia | serpyllifolia | thymeleaf bluet | PF |
| Rubiaceae | Houstonia | setiscaphia | Houstonia canadensis | |
| Rubiaceae | Houstonia | subviscosa | nodding bluet | PF |
| Rubiaceae | Houstonia | tenuifolia | Houstonia longifolia | |
| Rubiaceae | Houstonia | tenuis | Hedyotis nigricans var. nigricans | |
| Rubiaceae | Houstonia | wrightii | pygmy bluet | PF |
More Info Legend:
PF = This entry exists in PlantFiles.