''Syrmatium'' was a formerly accepted

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial nom ...

flowering plant Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (), commonly called angiosperms. The term "angiosperm" is derived from the Greek words ('container, vessel') and ('seed'), and refers to those plants th ...

s in the family Fabaceae (legumes), native to the southwestern United States. , it was considered a synonym of ''

Acmispon ''Acmispon'' is a genus of flowering plant in the family Fabaceae (legumes), native to North America and the west coast of Chile in South America. It includes several species of American bird's-foot trefoils and deervetches formerly contained in ...

'' by Plants of the World Online, and only ''Acmispon'' was recognized by the Jepson eFlora. Lotusdendroideusdend

Taxonomy

''Syrmatium'' belonged to a group of species traditionally placed in the tribe

Loteae The tribe Loteae is a subdivision of the plant family Fabaceae, in the Robinioids. These genera are recognized by the USDA: * ''Acmispon'' Raf. 1832 * ''Anthyllis'' L. 1753 * '' Antopetitia'' A.Rich. 1840 * ''Coronilla'' L. 1753 * '' Cyti ...

of the subfamily

Faboideae The Faboideae are a subfamily of the flowering plant family Fabaceae or Leguminosae. An acceptable alternative name for the subfamily is Papilionoideae, or Papilionaceae when this group of plants is treated as a family. This subfamily is widely ...

. The taxonomy of this group is complex, and its division into genera has varied considerably. Many species of ''Syrmatium'' were formerly placed in a broadly defined genus '' Lotus''. A molecular phylogenetic study in 2000 based on nuclear ribosomal ITS sequences confirmed the view that the "New World" (American) and "Old World" (African and Eurasian) species of ''Lotus'' did not belong in the same genus. ''Syrmatium'' was monophyletic.

Species

Species that have been placed in ''Syrmatium'' include: *''Syrmatium argophyllum'' (A.Gray) Greene = ''

Acmispon argophyllus ''Acmispon argophyllus'', Synonym (taxonomy), synonym ''Lotus argophyllus'', is a species of Faboideae, legume native to California and northwest Mexico. It is known by the common name silver bird's-foot trefoil or silver lotus.Acmispon cytisoides'' (Benth.) Brouillet *''Syrmatium decumbens'' (Benth.) Greene = '' Acmispon decumbens'' (Benth.) Govaerts *''Syrmatium distichum'' Greene = '' Acmispon distichus (Greene) Brouillet *''Syrmatium haydonii'' (Orcutt) Brand = '' Acmispon haydonii'' (Orcutt) Brouillet *''Syrmatium junceum'' Benth.) Greene = '' Acmispon junceus'' (Benth.) Brouillet *''Syrmatium leucophyllum'' (Greene) Brand = '' Acmispon procumbens'' (Greene) Brouillet var. ''procumbens'' *''Syrmatium micranthum'' (Nutt. ex Torr. & A.Gray) Greene = ''

Acmispon micranthus ''Acmispon micranthus'' is a species of legume native to California and northwestern Mexico. It is known by the common name San Diego bird's-foot trefoil. It is found in the coastal mountain ranges of California and Baja California, where it gro ...

'' (Nutt. ex Torr. & A.Gray) Brouillet *''Syrmatium prostratum'' (Nutt.) Greene = '' Acmispon prostratus'' (Nutt.) Brouillet *''Syrmatium tomentosum'' (Hook. & Arn.) Vogel = '' Acmispon tomentosus'' (Hook. & Arn.) Govaerts *''Syrmatium veatchii'' (Greene) Greene = ''

Acmispon dendroideus ''Acmispon dendroideus'', synonym ''Syrmatium veatchii'', is a species of legume native to California. It is known by the common name island broom. It is endemic to the Channel Islands of California, where it grows on coastal bluffs and cliffs. ...

'' var. ''veatchii'' (Greene) Brouillet *''Syrmatium watsonii'' (Vasey & Rose) Brand = '' Hosackia alamosana'' Rose

References

{{Taxonbar, from=Q17432930 Faboideae Historically recognized angiosperm genera Fabaceae genera