Children (51 direct children, 62 direct and indirect children):
Houstonia purpurea
(tree size 2)
Venus' pride
Houstonia pusilla
Tiny bluet
Houstonia caerulea
Azure bluet
Houstonia longifolia
(tree size 1)
Longleaf summer bluet
Houstonia procumbens
(tree size 1)
Roundleaf bluet
Houstonia parviflora
Greenman's bluet
Houstonia prostrata
Houstonia acerosa
(tree size 5)
Needleleaf bluet
Houstonia rosea
Rose bluet
Houstonia canadensis
Canadian summer bluet
Houstonia rubra
Red bluet
Houstonia correllii
Correll's bluet
Houstonia croftiae
Croft's bluet
Houstonia serpyllifolia
Thymeleaf bluet
Houstonia fasciculata
Houstonia sharpii
Houstonia gracilis
Houstonia spellenbergii
Houstonia greenei
Houstonia subviscosa
Nodding bluet
Houstonia humifusa
Matted bluet
Houstonia teretifolia
Houstonia micrantha
Southern bluet
Houstonia terrellii
Houstonia ouachitana
Ouachita bluet
Houstonia wrightii
Pygmy bluet
Houstonia palmeri
(tree size 1)
Houstonia macvaughii
Houstonia montana
Houstonia fruticosa
Houstonia polypremoides
Houstonia tenuifolia
Houstonia kingii
Houstonia drymarioides
Houstonia butterwickiae
Houstonia floridana
Houstonia rupicola
Houstonia umbratilis
Houstonia arenaria
Houstonia brandegeeana
Houstonia australis
Houstonia brevipes
Houstonia gracilenta
Houstonia peninsularis
Houstonia nigricans
(tree size 1)
Houstonia mullerae
Houstonia pygmaea
Houstonia xestosperma
Houstonia serpyllacea
Houstonia subg. porotis
Houstonia subg. stenaria