Taxon: Houstonia purpurea L.

Summary

Genus:

Houstonia

Family:

Rubiaceae

Subfamily:

Rubioideae

Tribe:

Spermacoceae

Nomen number:

316710

Place of publication:

Sp. pl. 1:105. 1753

Typification:

View in Linnean Typification Project

Verified:

04/27/1992 ARS Systematic Botanists.

Accessions:

1 (1 active, 1 available) in National Plant Germplasm System. (Map it)

Other conspecific taxa

Houstonia purpurea L. var. montana (Small) Terrell (0 active accession[s])
Houstonia purpurea L. var. purpurea (0 active accession[s])

Autonyms (not in current use), synonyms and invalid designations

Homotypic Synonym(s)
Hedyotis purpurea (L.) Torr. & A. Gray

No images

Conservation Status

Reference(s)

Terrell, E. E. 1996. Revision of Houstonia (Rubiaceae-Hedyotideae). Syst. Bot. Monogr. 48:49.
Wofford, B. E. Database of Tennessee vascular plants (on-line resource). Note: recognizes three vars.

Common names

Distribution

order_code	Status	Continent	Subcontinent	Country	State	Note	Reference
1	Native	Northern America	North-Central U.S.A.	United States	Illinois	s.	Terrell, E. E. 1996. Revision of Houstonia (Rubiaceae-Hedyotideae). Syst. Bot. Monogr. 48:49.
1	Native	Northern America	North-Central U.S.A.	United States	Missouri	s.	Terrell, E. E. 1996. Revision of Houstonia (Rubiaceae-Hedyotideae). Syst. Bot. Monogr. 48:49.
1	Native	Northern America	North-Central U.S.A.	United States	Nebraska	e.	Terrell, E. E. 1996. Revision of Houstonia (Rubiaceae-Hedyotideae). Syst. Bot. Monogr. 48:49.
1	Native	Northern America	North-Central U.S.A.	United States	Oklahoma	e.	Terrell, E. E. 1996. Revision of Houstonia (Rubiaceae-Hedyotideae). Syst. Bot. Monogr. 48:49.
1	Native	Northern America	Northeastern U.S.A.	United States	Connecticut	introd.?	Terrell, E. E. 1996. Revision of Houstonia (Rubiaceae-Hedyotideae). Syst. Bot. Monogr. 48:49.
1	Native	Northern America	Northeastern U.S.A.	United States	Indiana	s.	Terrell, E. E. 1996. Revision of Houstonia (Rubiaceae-Hedyotideae). Syst. Bot. Monogr. 48:49.
1	Native	Northern America	Northeastern U.S.A.	United States	Maine	s. (introd.?)	Terrell, E. E. 1996. Revision of Houstonia (Rubiaceae-Hedyotideae). Syst. Bot. Monogr. 48:49.
1	Native	Northern America	Northeastern U.S.A.	United States	Massachusetts	introd.?	Terrell, E. E. 1996. Revision of Houstonia (Rubiaceae-Hedyotideae). Syst. Bot. Monogr. 48:49.
1	Native	Northern America	Northeastern U.S.A.	United States	New York	e.-c. (introd.?)	Terrell, E. E. 1996. Revision of Houstonia (Rubiaceae-Hedyotideae). Syst. Bot. Monogr. 48:49.
1	Native	Northern America	Northeastern U.S.A.	United States	Ohio	s.	Terrell, E. E. 1996. Revision of Houstonia (Rubiaceae-Hedyotideae). Syst. Bot. Monogr. 48:49.
1	Native	Northern America	Northeastern U.S.A.	United States	Pennsylvania	s.	Terrell, E. E. 1996. Revision of Houstonia (Rubiaceae-Hedyotideae). Syst. Bot. Monogr. 48:49.
1	Native	Northern America	Northeastern U.S.A.	United States	Vermont	s. (introd.?)	Terrell, E. E. 1996. Revision of Houstonia (Rubiaceae-Hedyotideae). Syst. Bot. Monogr. 48:49.
1	Native	Northern America	Northeastern U.S.A.	United States	West Virginia		Terrell, E. E. 1996. Revision of Houstonia (Rubiaceae-Hedyotideae). Syst. Bot. Monogr. 48:49.
1	Native	Northern America	South-Central U.S.A.	United States	Texas		Terrell, E. E. 1996. Revision of Houstonia (Rubiaceae-Hedyotideae). Syst. Bot. Monogr. 48:49.
1	Native	Northern America	Southeastern U.S.A.	United States	Alabama		Terrell, E. E. 1996. Revision of Houstonia (Rubiaceae-Hedyotideae). Syst. Bot. Monogr. 48:49.
1	Native	Northern America	Southeastern U.S.A.	United States	Arkansas		Terrell, E. E. 1996. Revision of Houstonia (Rubiaceae-Hedyotideae). Syst. Bot. Monogr. 48:49.
1	Native	Northern America	Southeastern U.S.A.	United States	Delaware		Terrell, E. E. 1996. Revision of Houstonia (Rubiaceae-Hedyotideae). Syst. Bot. Monogr. 48:49.
1	Native	Northern America	Southeastern U.S.A.	United States	Florida	http://www.plantatlas.usf.edu/main.asp?plantID=3527	Terrell, E. E. 1996. Revision of Houstonia (Rubiaceae-Hedyotideae). Syst. Bot. Monogr. 48:49.
1	Native	Northern America	Southeastern U.S.A.	United States	Georgia		Terrell, E. E. 1996. Revision of Houstonia (Rubiaceae-Hedyotideae). Syst. Bot. Monogr. 48:49.
1	Native	Northern America	Southeastern U.S.A.	United States	Kentucky		Terrell, E. E. 1996. Revision of Houstonia (Rubiaceae-Hedyotideae). Syst. Bot. Monogr. 48:49.
1	Native	Northern America	Southeastern U.S.A.	United States	Louisiana		Terrell, E. E. 1996. Revision of Houstonia (Rubiaceae-Hedyotideae). Syst. Bot. Monogr. 48:49.
1	Native	Northern America	Southeastern U.S.A.	United States	Maryland		Terrell, E. E. 1996. Revision of Houstonia (Rubiaceae-Hedyotideae). Syst. Bot. Monogr. 48:49.
1	Native	Northern America	Southeastern U.S.A.	United States	Mississippi		Terrell, E. E. 1996. Revision of Houstonia (Rubiaceae-Hedyotideae). Syst. Bot. Monogr. 48:49.
1	Native	Northern America	Southeastern U.S.A.	United States	North Carolina		Terrell, E. E. 1996. Revision of Houstonia (Rubiaceae-Hedyotideae). Syst. Bot. Monogr. 48:49.
1	Native	Northern America	Southeastern U.S.A.	United States	South Carolina		Terrell, E. E. 1996. Revision of Houstonia (Rubiaceae-Hedyotideae). Syst. Bot. Monogr. 48:49.
1	Native	Northern America	Southeastern U.S.A.	United States	Tennessee		Terrell, E. E. 1996. Revision of Houstonia (Rubiaceae-Hedyotideae). Syst. Bot. Monogr. 48:49.
1	Native	Northern America	Southeastern U.S.A.	United States	Virginia		Terrell, E. E. 1996. Revision of Houstonia (Rubiaceae-Hedyotideae). Syst. Bot. Monogr. 48:49.

Native
Northern America

NORTHEASTERN U.S.A.: United States [Connecticut (introd.?), Indiana (s.), Maine (s. (introd.?)), Massachusetts (introd.?), New York (e.-c. (introd.?)), Ohio (s.), Pennsylvania (s.), Vermont (s. (introd.?)), West Virginia]
NORTH-CENTRAL U.S.A.: United States [Illinois (s.), Missouri (s.), Nebraska (e.), Oklahoma (e.)]
SOUTHEASTERN U.S.A.: United States [Alabama, Arkansas, Delaware, Florida (http://www.plantatlas.usf.edu/main.asp?plantID=3527), Georgia, Kentucky, Louisiana, Maryland, Mississippi, North Carolina, South Carolina, Tennessee, Virginia]
SOUTH-CENTRAL U.S.A.: United States [Texas]

Reference(s)

Terrell, E. E. 1996. Revision of Houstonia (Rubiaceae-Hedyotideae). Syst. Bot. Monogr. 48:49.

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/taxonomydetail?id=316710. Accessed 12 May 2026.