pachysandra
Concise Oxford English Dictionary © 2008 Oxford University Press:
pachysandra /ˌpakɪˈsandrə/
▶noun an evergreen creeping shrubby plant of the box family. [Genus Pachysandra.]
– origin formed irregularly from Gk pakhus ‘thick’ + anēr, andr- ‘male’ (with ref. to the thick stamens).
'pachysandra' also found in these Oxford entries:

