Maryland Checklist - Genus: Houstonia - all-time (Total: 6)   

PhotosCommon NameGenusSpeciesCategoryFamilyOrderClassKingdom
1 Azure BluetsHoustoniacaerulea Madder FamilyRubiaceaeRubialesMagnoliopsidaPlantae
2 Long-leaved BluetHoustonialongifolia var. compactaMadder FamilyRubiaceaeRubialesMagnoliopsidaPlantae
3 Purple BluetHoustoniapurpurea var. purpureaMadder FamilyRubiaceaeRubialesMagnoliopsidaPlantae
4 Small BluetHoustoniapusilla Madder FamilyRubiaceaeRubialesMagnoliopsidaPlantae
5 Creeping BluetHoustoniaserpyllifolia Madder FamilyRubiaceaeRubialesMagnoliopsidaPlantae
6  Longleaf Summer BluetHoustoniatenuifolia Madder FamilyRubiaceaeRubialesMagnoliopsidaPlantae

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