Subordinate Taxa
Scientific Name:

Monoecious herbs or subshrubs, usually with succulent, jointed stems. Lvs alternate, simple, usually oblique towards base, often strongly asymmetric.  Fls actinomorphic or zygomorphic, mostly in axillary cymes. ♂ fls with 2–(5), opposite, valvate sepals;  petals usually 2–5, imbricate, sometimes 0;  stamens numerous;  filaments free or connate; anthers opening lengthwise.  ♀ fls with perianth similar to ♂; staminodes very small or 0;  ovary inferior, occasionally free at apex, (1)–2–5-locular, usually angled or winged;  styles 2–5, free or connate; stigmas often twisted and appearing similar to stamens;  ovules very numerous on axile placentae.  Fr. usually a capsule, rarely a berry.  Seeds very numerous, minute, almost non-endospermic;  testa reticulate;  embryo straight.

[From:  Webb et al. (1988) Flora of New Zealand. Volume 4.]

Number of species and named hybrids in New Zealand within Begoniaceae
Exotic: Fully Naturalised1
Exotic: Casual3
Cronquist, A. 1988: The evolution and classification of flowering plants. The New York Botanic Gardens, New York.
Mabberley, D.J. 2008: Mabberley's plant book, a portable dictionary of plants, their classification and uses. Edition 3. Cambridge University Press.