Taxon: Stenaria nigricans (Lam.) Terrell

Summary

Genus:

Stenaria

Family:

Rubiaceae

Subfamily:

Rubioideae

Tribe:

Spermacoceae

Nomen number:

463914

Place of publication:

Sida 19:600. 2001

Verified:

10/13/2011 ARS Systematic Botanists.

Accessions:

2 (2 active, 2 available) in National Plant Germplasm System. (Map it)

Other conspecific taxa

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

Homotypic Synonym(s)
Hedyotis nigricans (Lam.) Fosberg
Houstonia nigricans (Lam.) Fernald

No images

Conservation Status

Reference(s)

Terrell, E. E. 2001. Taxonomy of Stenaria (Rubiaceae: Hedyotideae), a new genus including Hedyotis nigricans. Sida 19:591-614.

Common names

Language	Name	seq	Citation
English	diamond-flowers	1	Terrell, E. E. 2001. Taxonomy of Stenaria (Rubiaceae: Hedyotideae), a new genus including Hedyotis nigricans. Sida 19:591-614.
English	fine-leaf bluets	1	Diggs, G. M., Jr. et al. 1999. Shinner's and Mahler's illustrated flora of North Central Texas. Note: as Hedyotis nigricans
English	prairie bluets	1	Diggs, G. M., Jr. et al. 1999. Shinner's and Mahler's illustrated flora of North Central Texas. Note: as Hedyotis nigricans
English	star-violet	1	Diggs, G. M., Jr. et al. 1999. Shinner's and Mahler's illustrated flora of North Central Texas. Note: as Hedyotis nigricans

Distribution

order_code	Status	Continent	Subcontinent	Country	State	Note	Reference
1	Native	Northern America	North-Central U.S.A.	United States	Illinois		Gleason, H. A. & A. Cronquist. 1991. Manual of vascular plants of northeastern United States and adjacent Canada, ed. 2
1	Native	Northern America	North-Central U.S.A.	United States	Iowa		Terrell, E. E. 2001. Taxonomy of Stenaria (Rubiaceae: Hedyotideae), a new genus including Hedyotis nigricans. Sida 19:591-614.
1	Native	Northern America	North-Central U.S.A.	United States	Kansas		Terrell, E. E. 2001. Taxonomy of Stenaria (Rubiaceae: Hedyotideae), a new genus including Hedyotis nigricans. Sida 19:591-614.
1	Native	Northern America	North-Central U.S.A.	United States	Missouri		Terrell, E. E. 2001. Taxonomy of Stenaria (Rubiaceae: Hedyotideae), a new genus including Hedyotis nigricans. Sida 19:591-614.
1	Native	Northern America	North-Central U.S.A.	United States	Nebraska		Terrell, E. E. 2001. Taxonomy of Stenaria (Rubiaceae: Hedyotideae), a new genus including Hedyotis nigricans. Sida 19:591-614.
1	Native	Northern America	North-Central U.S.A.	United States	Oklahoma		Terrell, E. E. 2001. Taxonomy of Stenaria (Rubiaceae: Hedyotideae), a new genus including Hedyotis nigricans. Sida 19:591-614.
1	Native	Northern America	Northeastern U.S.A.	United States	Indiana		Gleason, H. A. & A. Cronquist. 1991. Manual of vascular plants of northeastern United States and adjacent Canada, ed. 2
1	Native	Northern America	Northeastern U.S.A.	United States	Michigan	s.	Terrell, E. E. 2001. Taxonomy of Stenaria (Rubiaceae: Hedyotideae), a new genus including Hedyotis nigricans. Sida 19:591-614.
1	Native	Northern America	Northeastern U.S.A.	United States	Ohio		Terrell, E. E. 2001. Taxonomy of Stenaria (Rubiaceae: Hedyotideae), a new genus including Hedyotis nigricans. Sida 19:591-614.
1	Native	Northern America	Northern Mexico	Mexico	Chihuahua		Terrell, E. E. 2001. Taxonomy of Stenaria (Rubiaceae: Hedyotideae), a new genus including Hedyotis nigricans. Sida 19:591-614.
1	Native	Northern America	Northern Mexico	Mexico	Coahuila de Zaragoza		Terrell, E. E. 2001. Taxonomy of Stenaria (Rubiaceae: Hedyotideae), a new genus including Hedyotis nigricans. Sida 19:591-614.
1	Native	Northern America	Northern Mexico	Mexico	Nuevo León		Terrell, E. E. 2001. Taxonomy of Stenaria (Rubiaceae: Hedyotideae), a new genus including Hedyotis nigricans. Sida 19:591-614.
1	Native	Northern America	Northern Mexico	Mexico	San Luis Potosí		Terrell, E. E. 2001. Taxonomy of Stenaria (Rubiaceae: Hedyotideae), a new genus including Hedyotis nigricans. Sida 19:591-614.
1	Native	Northern America	Northern Mexico	Mexico	Sonora		Terrell, E. E. 2001. Taxonomy of Stenaria (Rubiaceae: Hedyotideae), a new genus including Hedyotis nigricans. Sida 19:591-614.
1	Native	Northern America	Northern Mexico	Mexico	Tamaulipas		Terrell, E. E. 2001. Taxonomy of Stenaria (Rubiaceae: Hedyotideae), a new genus including Hedyotis nigricans. Sida 19:591-614.
1	Native	Northern America	Northwestern U.S.A.	United States	Colorado	e.	Terrell, E. E. 2001. Taxonomy of Stenaria (Rubiaceae: Hedyotideae), a new genus including Hedyotis nigricans. Sida 19:591-614.
1	Native	Northern America	South-Central U.S.A.	United States	New Mexico		Terrell, E. E. 2001. Taxonomy of Stenaria (Rubiaceae: Hedyotideae), a new genus including Hedyotis nigricans. Sida 19:591-614.
1	Native	Northern America	South-Central U.S.A.	United States	Texas		Terrell, E. E. 2001. Taxonomy of Stenaria (Rubiaceae: Hedyotideae), a new genus including Hedyotis nigricans. Sida 19:591-614.
1	Native	Northern America	Southeastern U.S.A.	United States	Alabama		Terrell, E. E. 2001. Taxonomy of Stenaria (Rubiaceae: Hedyotideae), a new genus including Hedyotis nigricans. Sida 19:591-614.
1	Native	Northern America	Southeastern U.S.A.	United States	Arkansas		Terrell, E. E. 2001. Taxonomy of Stenaria (Rubiaceae: Hedyotideae), a new genus including Hedyotis nigricans. Sida 19:591-614.
1	Native	Northern America	Southeastern U.S.A.	United States	Florida		Terrell, E. E. 2001. Taxonomy of Stenaria (Rubiaceae: Hedyotideae), a new genus including Hedyotis nigricans. Sida 19:591-614.
1	Native	Northern America	Southeastern U.S.A.	United States	Georgia		Terrell, E. E. 2001. Taxonomy of Stenaria (Rubiaceae: Hedyotideae), a new genus including Hedyotis nigricans. Sida 19:591-614.
1	Native	Northern America	Southeastern U.S.A.	United States	Kentucky		Terrell, E. E. 2001. Taxonomy of Stenaria (Rubiaceae: Hedyotideae), a new genus including Hedyotis nigricans. Sida 19:591-614.
1	Native	Northern America	Southeastern U.S.A.	United States	Louisiana		Terrell, E. E. 2001. Taxonomy of Stenaria (Rubiaceae: Hedyotideae), a new genus including Hedyotis nigricans. Sida 19:591-614.
1	Native	Northern America	Southeastern U.S.A.	United States	Mississippi		Terrell, E. E. 2001. Taxonomy of Stenaria (Rubiaceae: Hedyotideae), a new genus including Hedyotis nigricans. Sida 19:591-614.
1	Native	Northern America	Southeastern U.S.A.	United States	Tennessee		Terrell, E. E. 2001. Taxonomy of Stenaria (Rubiaceae: Hedyotideae), a new genus including Hedyotis nigricans. Sida 19:591-614.
1	Native	Northern America	Southern Mexico	Mexico	Hidalgo		Terrell, E. E. 2001. Taxonomy of Stenaria (Rubiaceae: Hedyotideae), a new genus including Hedyotis nigricans. Sida 19:591-614.

Native
Northern America

NORTHEASTERN U.S.A.: United States [Indiana, Michigan (s.), Ohio]
NORTH-CENTRAL U.S.A.: United States [Illinois, Iowa, Kansas, Missouri, Nebraska, Oklahoma]
NORTHWESTERN U.S.A.: United States [Colorado (e.)]
SOUTHEASTERN U.S.A.: United States [Alabama, Arkansas, Florida, Georgia, Kentucky, Louisiana, Mississippi, Tennessee]
SOUTH-CENTRAL U.S.A.: United States [New Mexico, Texas]
NORTHERN MEXICO: Mexico [Chihuahua, Coahuila de Zaragoza, Nuevo León, San Luis Potosí, Sonora, Tamaulipas]
SOUTHERN MEXICO: Mexico [Hidalgo]

Reference(s)

Gleason, H. A. & A. Cronquist. 1991. Manual of vascular plants of northeastern United States and adjacent Canada, ed. 2
Terrell, E. E. 2001. Taxonomy of Stenaria (Rubiaceae: Hedyotideae), a new genus including Hedyotis nigricans. Sida 19:591-614.

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=463914. Accessed 12 May 2026.