- Family:
- Rubiaceae Juss.
- Genus:
- Houstonia Gronov.
Houstonia caerulea L.

Native to:
Alabama, Arkansas, Connecticut, Iowa, Kentucky, Louisiana, Maryland, Mississippi, Missouri, New Brunswick, New Hampshire, New York, Newfoundland, Nova Scotia, Québec, Tennessee, Vermont, Virginia, Wisconsin
- Anotis coerulea (L.) G.Don
- Anotis gentianoides (Endl.) Walp.
- Hedyotis brachiata Miq. ex Hook.f.
- Hedyotis caerulea (L.) Hook.
- Hedyotis caerulea f. albiflora (Millsp.) Fosberg
- Hedyotis caerulea f. benkei Fosberg
- Hedyotis caerulea var. faxonorum (Pease & A.H.Moore) Fosberg
- Hedyotis gentianoides Endl.
- Houstonia caerulea f. albiflora Millsp.
- Houstonia caerulea var. elatior (Michx.) Pursh
- Houstonia caerulea var. faxonorum Pease & A.H.Moore
- Houstonia caerulea var. piersii Barbour
- Houstonia faxonorum (Pease & A.H.Moore) Fernald
- Houstonia grandiflora Raf.
- Houstonia linnaei Michx.
- Houstonia linnaei var. elatior Michx.
- Houstonia pusilla J.F.Gmel.
- Houstonia serpyllifolia Graham
- Oldenlandia caerulea (L.) A.Gray
- Poiretia erecta J.F.Gmel.
Houstonia caerulea L. appears in other Kew resources:
First published in Sp. Pl.: 105 (1753)
Accepted by
- Bailey, C. & al. (2015). Guide to the Vascular Plants of Tennessee: 1-813. University of Tennessee press.
- Govaerts, R. (2003). World Checklist of Selected Plant Families Database in ACCESS: 1-216203. The Board of Trustees of the Royal Botanic Gardens, Kew.
- Jones, R.L. (2005). Plant life of Kentucky. An illustrated guide to the vascular flora: 1-833. The universitry press of Kentucky.
- Kral, R., Diamond, A.R., Ginzbarg, S.L., Hansen, C.J., Haynes, R.R., Keener, B.R., Lelong, M.G., Spaulding, D.D. & Woods, M. (2011). Annotated checklist of the vascular plants of Alabama: 1-112. Botanical reseach institute of Texas.
Literature
Kew Backbone Distributions
- Bailey, C. & al. (2015). Guide to the Vascular Plants of Tennessee: 1-813. University of Tennessee press.
- Jones, R.L. (2005). Plant life of Kentucky. An illustrated guide to the vascular flora: 1-833. The universitry press of Kentucky.
- Kral, R., Diamond, A.R., Ginzbarg, S.L., Hansen, C.J., Haynes, R.R., Keener, B.R., Lelong, M.G., Spaulding, D.D. & Woods, M. (2011). Annotated checklist of the vascular plants of Alabama: 1-112. Botanical reseach institute of Texas.
- Ruhsam, M. (2005). Survey of all the Rubiaceae specimens at the Royal Botanic Gardens, Kew.
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Kew Backbone Distributions
The International Plant Names Index and World Checklist of Selected Plant Families 2022. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0
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Kew Names and Taxonomic Backbone
The International Plant Names Index and World Checklist of Selected Plant Families 2022. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0
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Kew Science Photographs
Copyright applied to individual images