Children (33 direct children, 49470 direct and indirect children):
Gelsemiaceae
(tree size 54)
Rubiaceae
(tree size 25231)
Madder family
Asclepiadaceae
(tree size 5)
Asclepiadoideae
Gentianaceae
(tree size 4016)
Gentian family
Apocynaceae
(tree size 19247)
Loganiaceae
(tree size 884)
Saccifoliaceae
Retziaceae
Strychnaceae
Geniostomaceae
Pteleocarpaceae
Potaliaceae
Periplocaceae
Plumeriaceae
Antoniaceae
Aparinaceae
Chironiaceae
Cinchonaceae
Coffeaceae
Cynocrambaceae
Galiaceae
Gardeniaceae
Henriqueziaceae
Lippayaceae
Lygodisodeaceae
Naucleaceae
Operculariaceae
Psittacanthaceae
Spigeliaceae
Stapeliaceae
Vincaceae
Willughbeiaceae
Coutoubeaceae