Kingdom: Plantae
(Unranked): Angiosperms
(Unranked): Eudicots
(Unranked): Asterids
Order: Asterales
Family: Asteraceae
Tribe: Astereae
Genus: Olearia
Species: O. nummulariifolia
Scientific name: Olearia nummulariifolia 
Synonym:  Olearia nummularifolia
Common name: Tree Daisy

Olearia nummulariifolia is alpine tree daisy shrub with a twiggy dense growth up to 3 m high with branchlets that are sticky in the young stage and are clothed with white or yellowish star-shaped hairs.
It is found in alpine dry and open situations usually at 2,000–4,500 ft (600–1,400 m), from Lat 37 degrees 30.minutes southwards throughout New Zealand descending to lowlands in the southern part of its range.
O. nummulariifolia has small closely set yellow-green leaves (5-10mm long and 4 -6 mm wide).
They are leathery, very thick and small roundish,(coin-shaped hence the specific name) leaves that have a brownish tomentum underneath. Its daisy flowers appear in spring through to autumn on the branch tips.

Photographed at Otari Botanical Gardens, Wellington
Olearia nummularifolia.JPG

Olearia nummulariifolia.JPG

The end of flowering March. Arthurs Pass, South Island.
Olearia nummulariifolia-001.JPG

A young tree photographed at Otari Wilton Bush Reserve, Wellington
Olearia nummulariifolia tree daisy-001.JPG

Olearia nummulariifolia . 114 . 114 .JPG 

Olearia nummulariifolia . 115 .JPG  

Thanks to Wikipedia for text and information: https://creativecommons.org/licenses/by-sa/3.0/