This is an uncommon naturalised grass of inner Auckland (mostly found along Symond Street, within the University of Auckland campus grounds), Grafton Cemetery, and on the western side of Grafton Gully, Auckland Domain. Images show a plant admixed with an iridaceous plant growing in a street planting of Phormium cookianum subsp. hookeri (see http://naturewatch.org.nz/observations/2398982).
Voucher collected and lodged in the Auckland Museum Herbarium (PdL 12879 AK 359754)