Indigofereae

The tribe Indigofereae is a subdivision of the plant family Fabaceae. It is consistently recovered as a monophyletic clade in molecular phylogenies.^{[5][6][7][8][9][10][11][12][13][14][4][15][16][17][18][19][excessive citations]} The Indigofereae arose 30.0 ± 3.3 million years ago (in the Oligocene).^[20]

Indigofereae
Indigofera astragalina
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Rosids
Order:	Fabales
Family:	Fabaceae
Subfamily:	Faboideae
Clade:	Meso-Papilionoideae
Clade:	Non-protein amino acid-accumulating clade
Tribe:	Indigofereae (Benth.) Hutch.[1]
Genera
See text
Synonyms
Galegeae subtribe Indigoferinae (Benth.) Benth. 1859[2] Indigofereae clade sensu Schrire et al. 2009[3] Indigoferoid clade sensu Cardoso et al. 2012[4]

This tribe does not currently have a node-based, phylogenetic definition, but it can be distinguished by the following morphological synapomorphies: the presence of biramous hairs, keel spurs, short free staminal filaments, and short fruiting pedicels; and the loss of stipels and seed arils.^[3]

Genera

Indigofereae comprises the following genera:^{[2][3][21][22]}

• Cyamopsis DC.
• Indigastrum Jaub. & Spach
• Indigofera L.
• Microcharis Benth.
• Phylloxylon Baill.
• Rhynchotropis Harms.

Systematics

Modern molecular phylogenetics suggest the following relationships:^[3]

	Millettioids (outgroup) Indigofereae Phylloxylon Indigofera Palaeotropical Clade Pantropical Clade Cape Clade Tethyan Clade CRIM Clade Cyamopsis Indigastrum Rhynchotropis Microcharis