Family · Rosids

Casuarinaceae

She-oaks

She-oak family: nitrogen-fixing trees with jointed green twigs resembling conifers, native to Australasia and the Pacific.

Accepted species

91accepted names · Kew WCVP

Genera

4accepted genera · Kew WCVP

Origin

≈35 MaPaleogene · crown age, Jin & Qian 2022 megatree

Centre of diversity

Australasiamost native species · WGSRPD

Open Casuarinaceae in the treePan, zoom and dig into its genera in the interactive view.›

Plants you might know

• Casuarina
• Allocasuarina

Genera

• Allocasuarina61 spp.
• Casuarina14 spp.
• Gymnostoma14 spp.
• Ceuthostoma2 spp.

Where it grows

• Australasia67
• Pacific14
• Asia-Tropical12

Native species richness by botanical continent (WGSRPD level 1), from Kew WCVP.

Related families

Casuarinaceae sits in the order Fagales.

• FagaceaeOaks, beeches, chestnuts1,192
• BetulaceaeBirches, alder, hazel212
• JuglandaceaeWalnuts, hickory, pecan85
• MyricaceaeBayberry, sweetgale52
• NothofagaceaeSouthern beeches42
• Ticodendraceae1