Article · Wikipedia archive · Last revised Jun 12, 2026

Tetramerium

Tetramerium is a genus of plants belonging to the family Acanthaceae. It is found in the Americas, ranging from the southwestern United States to Bolivia, especially in tropical dry forests. Christian Gottfried Daniel Nees von Esenbeck first described the genus in 1846 after collecting two species on the journey of HMS Sulphur.

Last revised
Jun 12, 2026
Read time
≈ 1 min
Length
310 w
Citations
8
Source
Tetramerium
Tetramerium nervosum
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Embryophytes
Clade: Tracheophytes
Clade: Spermatophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Lamiales
Family: Acanthaceae
Subfamily: Acanthoideae
Tribe: Justicieae
Genus: Tetramerium
Nees (1846)
Species1

30; see text

Synonyms1

Averia Leonard (1940)

Tetramerium is a genus of plants belonging to the family Acanthaceae. It is found in the Americas,2 ranging from the southwestern United States to Bolivia,1 especially in tropical dry forests.3 Christian Gottfried Daniel Nees von Esenbeck first described the genus in 1846 after collecting two species (T. polystachyum and T. nervosum) on the journey of HMS Sulphur.34

Species

30 species are accepted.1

  • Tetramerium abditum (Brandegee) T.F.Daniel
  • Tetramerium aureum Rose
  • Tetramerium butterwickianum T.F.Daniel
  • Tetramerium carranzae T.F.Daniel
  • Tetramerium crenatum T.F.Daniel
  • Tetramerium denudatum T.F.Daniel
  • Tetramerium diffusum Rose
  • Tetramerium emilyanum T.F.Daniel
  • Tetramerium fruticosum Brandegee
  • Tetramerium glandulosum Oerst.
  • Tetramerium glutinosum Lindau ex Loes.
  • Tetramerium guerrerense T.F.Daniel
  • Tetramerium langlassei Hopp
  • Tetramerium mcvaughii T.F.Daniel
  • Tetramerium nemorum Brandegee
  • Tetramerium nervosum Nees – hairy fornwort - cultivated for xeriscapes
  • Tetramerium oaxacanum T.F.Daniel
  • Tetramerium obovatum T.F.Daniel
  • Tetramerium ochoterenae (Miranda) T.F.Daniel
  • Tetramerium peruvianum (Lindau) T.F.Daniel
  • Tetramerium rubrum Hopp
  • Tetramerium rzedowskii T.F.Daniel
  • Tetramerium sagasteguianum T.F.Daniel
  • Tetramerium surcubambense T.F.Daniel
  • Tetramerium tenuissimum Rose
  • Tetramerium tetramerioides (Lindau) T.F.Daniel
  • Tetramerium vargasiae T.F.Daniel & Cruz Durán
  • Tetramerium wasshausenii T.F.Daniel
  • Tetramerium yaquianum T.F.Daniel
  • Tetramerium zeta T.F.Daniel
References

References

  1. Tetramerium Nees. Plants of the World Online. Retrieved 7 February 2024.
  2. Daniel, T. F.; McDade, L. A.; Manktelow, M. & Kiel, C. A. (2008). "The "Tetramerium Lineage" (Acanthaceae: Acanthoideae: Justicieae): Delimitation and intra-lineage relationships based on cp and nrlTS sequence data" (PDF). Systematic Botany. 33 (2): 416–436. doi:10.1600/036364408784571581. S2CID 85891790.
  3. Daniel, T. F. (1986). "Systematics of Tetramerium (Acanthaceae)". Systematic Botany Monographs. 12: 1–134. doi:10.2307/25027630. JSTOR 25027630.
  4. Nees von Esenbeck; C. G. (1846). "Acanthaceae". In G. Bentham (ed.). The botany of the voyage of H.M.S. Sulphur. London: Smith, Elder and Co. pp. 145–149.
External links