Flora of New Zealand Series

Type locality: Grassland on terraces above the Poulter River. Type: BD 45807B (G. S. 94) Simpson "Xmas 1938".

Branchlets ± 4 mm. wide, flattened; peduncles, pedicels and calyx densely hairy; calyx-teeth blunt. Standard ± = wings, colour brighter; keel c. 2 mm. longer than standard.

DIST.: S. Grassland and herbfield in drainage area of Waimakariri River.

Simpson remarks: "The variety is a composite of forms all peculiar by the keel extending its length during the normal development of the flower from the budded stage. Plants from the type habitat and at Mt. Torlesse have flattened branchlets, but those of the Porter River and the Castle Hill Basin have the rounded, compressed branchlets of the species."