Caesalpinioideae

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Caesalpinioideae
Royal Poinciana, Delonix regia
Royal Poinciana, Delonix regia
Plant Info
Scientific classification
Kingdom: Plantae
Division: Magnoliophyta
Class: Magnoliopsida
Order: Fabales
Family: Fabaceae
Subfamily: Caesalpinioideae

Tribes
Cassieae

Caesalpinieae
Cercideae
Detarieae

Caesalpinioideae is a botanical name at the rank of subfamily, placed in the large family Fabaceae or Leguminosae. Its name is formed from the generic name Caesalpinia.

The Caesalpinioideae are mainly trees distributed in the moist tropics. Their flowers are zygomorphic, but are very variable. Nodulation is rare in this subfamily, and where it does occur nodules have a primitive structure.

Circumscription and status of this group is mildly controversial. Although the group as such is well recognised, there are a number of genera whose placement (here, or in one of the two other subfamilies) is not generally agreed on. In some classifications, for example the Cronquist system, the group is recognized at the rank of family, Caesalpiniaceae. Recent systematic research, using molecular data, has shown the group to be paraphyletic with respect to subfamilies Faboideae (Papilionoideae) and Mimosoideae and a split is being considered.

The genera may be classified in four tribes, Caesalpinieae, Cassieae, Cercideae and Detarieae. The tribe Cercideae has sometimes been included in the subfamily Faboideae (aka Papilionoideae) in the past.

Template:Wikispecies

References

  • Bruneau, B., F. Forest, P.S. Herendeen, B.B. Klitgaard, and G.P. Lewis. 2001. Phylogenetic relationships in the Caesalpinioideae (Leguminosae) as inferred from chloroplast trnL intron sequences. Systematic Botany 26: 487–514 (link to abstract here)