Pb. Heenan et al., Checklist of dicotyledons, gymnosperms, and pteridophytes naturalised or casual in New Zealand: additional records 1997-1998, NZ J BOTANY, 37(4), 1999, pp. 629-642
Nine species are reported as additional or newly substantiated fully natura
lised records for the flora of New Zealand during the 2-year period 1997-19
98. Notable additions are the invasive Eupa torium cannabinum and Acacia so
phorae, which are well established in the Wanganui area, and Myricaria germ
anica which is relatively common along parts of the Waimakariri River, Cant
erbury. Thirty-seven species, including two ferns, are considered to be new
records of casual naturalised plants. Thirty-eight additional species that
were previously known from few collections are given extended distribution
s.