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Table 4 List of top 20 most species-rich plant families and genera recorded in tropical African forests

From: Exploring the floristic diversity of tropical Africa

Family

Total # species

Genus

Total # species

Rubiaceae

1698

Psychotria

251

Fabaceae

1590

Cyperus

179

Orchidaceae

928

Polystachya

156

Asteraceae

753

Crotalaria

154

Poaceae

722

Pavetta

145

Acanthaceae

526

Vernonia

115

Cyperaceae

443

Combretum

108

Apocynaceae

430

Begonia

107

Malvaceae

413

Impatiens

102

Euphorbiaceae

402

Indigofera

102

Lamiaceae

367

Euphorbia

101

Annonaceae

306

Rinorea

99

Melastomataceae

231

Habenaria

92

Phyllanthaceae

190

Cola

91

Sapindaceae

176

Dichapetalum

89

Celastraceae

167

Justicia

88

Sapotaceae

164

Asplenium

82

Asparagaceae

159

Millettia

82

Convolvulaceae

148

Bulbophyllum

80

Polypodiaceae

141

Phyllanthus

79

  1. The families and genera are ordered from largest to smallest