Genus Houstonia Gronov.


Summary
Genus number:
5814
Last updated:
6 October 2011
Family:
Rubiaceae
Subfamily:
Rubioideae
Tribe:
Spermacoceae
Accession count:

12 (10  active, 3  available) in National Plant Germplasm System
Comments:
authorship fide W. Greuter (pers. comm. via E-mail on 4 Oct 2011)


Synonyms
Synonym(s) Possible synonym(s)

Images (1 total. Click on image for more.)
Seed

Google Scholar   

References:
  1. Church, S. A. 2003. Molecular phylogenetics of Houstonia (Rubiaceae): descending aneuploidy and breeding system evolution in the radiation of the linage across North America. Molec. Phylogenet. Evol. 27:223-238.
  2. Robbrecht, E. 1988. Genera Rubiacearum. Opera Bot. Belg. 1:235-250.
  3. Terrell, E. E. et al. 1986. Phylogenetic implications of diverse seed types, chromosome numbers, and pollen morphology in Houstonia (Rubiaceae). Amer. J. Bot. 73:103-115.
  4. Terrell, E. E. 1990. Synopsis of Oldenlandia (Rubiaceae) in the United States. Phytologia 68:125133.
  5. Terrell, E. E. 1996. Revision of Houstonia (Rubiaceae-Hedyotideae). Syst. Bot. Monogr. 48:1-118.
Cite as: USDA, Agricultural Research Service, National Plant Germplasm System. 2026. Germplasm Resources Information Network (GRIN Taxonomy). National Germplasm Resources Laboratory, Beltsville, Maryland.
URL: https://npgstest.ars-grin.gov/gringlobal/taxon/taxonomygenus?id=5814. Accessed 12 May 2026.