Genus Guaiacum L.


Summary
Genus number:
5185
Last updated:
1 August 2025
Family:
Zygophyllaceae
Subfamily:
Larreoideae
Common name(s):

lignum-vitae
Accession count:

18 (4  active, 1  available) in National Plant Germplasm System
Comments:
  • conserved (nom. cons.) with this spelling (Madrid ICN Art. 14.11 & App. III) against the original spelling "Guajacum"
  • all accepted species are in GRIN


Synonyms
Synonym(s)

Images (5 total. Click on image for more.)
Embryo drawing

Google Scholar   

References:
  1. Axelrod, F. S. 2002. (1528) Proposal to conserve the name Guaiacum (Zygophyllaceae) with that spelling. Taxon 51:203-204.
  2. Brummitt, R. K. 2004. Report of the Committee for Spermatophyta: 54. Taxon 53:821. Note: proposal recommended
  3. CITES. Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES) Appendices I, II and III (on-line resource).
  4. Sheahan, M. C. & M. W. Chase. 2000. Phylogenetic relationships within Zygophyllaceae based on DNA sequences of three plastid regions, with special emphasis on Zygophylloideae. Syst. Bot. 25:371-384. www.aspt.net/systematic-botany
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=5185. Accessed 10 May 2026.