Taxon: Havardia pallens (Benth.) Britton & Rose

Summary

Genus:

Havardia

Family:

Fabaceae (alt. Leguminosae)

Subfamily:

Caesalpinioideae

Tribe:

Ingeae

Nomen number:

311913

Place of publication:

N. Amer. fl. 23:42. 1928

Verified:

06/17/1987 ARS Systematic Botanists.

Accessions:

6 (0 active, 0 available) in National Plant Germplasm System. (Map it)

Other conspecific taxa

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

Basionym
Calliandra pallens Benth.

Homotypic Synonym(s)
Pithecellobium pallens (Benth.) Standl.

Heterotypic Synonym(s)
Pithecellobium brevifolium Benth.
Zygia brevifolia (Benth.) Sudw.

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

Conservation Status

Reference(s)

Barneby, R. C. & J. W. Grimes. 1996. Silk tree, guanacaste, monkey's earring: a generic system for the synandrous Mimosaceae of the Americas. Part I. Abarema, Albizia, and allies. Mem. New York Bot. Gard. 74(1):169.
Gunn, C. R. 1984. Fruits and seeds of genera in the subfamily Mimosoideae (Fabaceae). Techn. Bull. U.S.D.A. 1681:154.
Nielsen, I. C. 1981. Tribe 5. Ingeae Benth. Advances in legume systematics. 1:184. Note: accepts the genus Havardia with H. brevifolia as type

Common names

Distribution

order_code	Status	Continent	Subcontinent	Country	State	Note	Reference
1	Native	Northern America	Northern Mexico	Mexico	Chihuahua	n.e.	Barneby, R. C. & J. W. Grimes. 1996. Silk tree, guanacaste, monkey's earring: a generic system for the synandrous Mimosaceae of the Americas. Part I. Abarema, Albizia, and allies. Mem. New York Bot. Gard. 74(1):169.
1	Native	Northern America	Northern Mexico	Mexico	Coahuila de Zaragoza	e.	Barneby, R. C. & J. W. Grimes. 1996. Silk tree, guanacaste, monkey's earring: a generic system for the synandrous Mimosaceae of the Americas. Part I. Abarema, Albizia, and allies. Mem. New York Bot. Gard. 74(1):169.
1	Native	Northern America	Northern Mexico	Mexico	Durango	e.	Barneby, R. C. & J. W. Grimes. 1996. Silk tree, guanacaste, monkey's earring: a generic system for the synandrous Mimosaceae of the Americas. Part I. Abarema, Albizia, and allies. Mem. New York Bot. Gard. 74(1):169.
1	Native	Northern America	Northern Mexico	Mexico	Nuevo León		Barneby, R. C. & J. W. Grimes. 1996. Silk tree, guanacaste, monkey's earring: a generic system for the synandrous Mimosaceae of the Americas. Part I. Abarema, Albizia, and allies. Mem. New York Bot. Gard. 74(1):169.
1	Native	Northern America	Northern Mexico	Mexico	San Luis Potosí	e.	Barneby, R. C. & J. W. Grimes. 1996. Silk tree, guanacaste, monkey's earring: a generic system for the synandrous Mimosaceae of the Americas. Part I. Abarema, Albizia, and allies. Mem. New York Bot. Gard. 74(1):169.
1	Native	Northern America	Northern Mexico	Mexico	Tamaulipas		Barneby, R. C. & J. W. Grimes. 1996. Silk tree, guanacaste, monkey's earring: a generic system for the synandrous Mimosaceae of the Americas. Part I. Abarema, Albizia, and allies. Mem. New York Bot. Gard. 74(1):169.
1	Native	Northern America	South-Central U.S.A.	United States	Texas		Barneby, R. C. & J. W. Grimes. 1996. Silk tree, guanacaste, monkey's earring: a generic system for the synandrous Mimosaceae of the Americas. Part I. Abarema, Albizia, and allies. Mem. New York Bot. Gard. 74(1):169.
1	Native	Northern America	Southern Mexico	Mexico	Chiapas	s.	Barneby, R. C. & J. W. Grimes. 1996. Silk tree, guanacaste, monkey's earring: a generic system for the synandrous Mimosaceae of the Americas. Part I. Abarema, Albizia, and allies. Mem. New York Bot. Gard. 74(1):169.
1	Native	Northern America	Southern Mexico	Mexico	Hidalgo	n.	Barneby, R. C. & J. W. Grimes. 1996. Silk tree, guanacaste, monkey's earring: a generic system for the synandrous Mimosaceae of the Americas. Part I. Abarema, Albizia, and allies. Mem. New York Bot. Gard. 74(1):169.
1	Native	Northern America	Southern Mexico	Mexico	Oaxaca	s.e.	Barneby, R. C. & J. W. Grimes. 1996. Silk tree, guanacaste, monkey's earring: a generic system for the synandrous Mimosaceae of the Americas. Part I. Abarema, Albizia, and allies. Mem. New York Bot. Gard. 74(1):169.
1	Native	Northern America	Southern Mexico	Mexico	Querétaro	n.	Barneby, R. C. & J. W. Grimes. 1996. Silk tree, guanacaste, monkey's earring: a generic system for the synandrous Mimosaceae of the Americas. Part I. Abarema, Albizia, and allies. Mem. New York Bot. Gard. 74(1):169.
1	Native	Northern America	Southern Mexico	Mexico	Veracruz de Ignacio de la Llave		Barneby, R. C. & J. W. Grimes. 1996. Silk tree, guanacaste, monkey's earring: a generic system for the synandrous Mimosaceae of the Americas. Part I. Abarema, Albizia, and allies. Mem. New York Bot. Gard. 74(1):169.

Native
Northern America

SOUTH-CENTRAL U.S.A.: United States [Texas]
NORTHERN MEXICO: Mexico [Chihuahua (n.e.), Coahuila de Zaragoza (e.), Durango (e.), Nuevo León, San Luis Potosí (e.), Tamaulipas]
SOUTHERN MEXICO: Mexico [Chiapas (s.), Hidalgo (n.), Oaxaca (s.e.), Querétaro (n.), Veracruz de Ignacio de la Llave]

Reference(s)

Barneby, R. C. & J. W. Grimes. 1996. Silk tree, guanacaste, monkey's earring: a generic system for the synandrous Mimosaceae of the Americas. Part I. Abarema, Albizia, and allies. Mem. New York Bot. Gard. 74(1):169.

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=311913. Accessed 8 May 2026.