Celmisia walkeri, also known as Celmisia webbiana is a sub-shrub in the genus Celmisia

Celmisia

Celmisia is a genus of perennial herbs or subshrubs, in the family Asteraceae. There are around 70 species; most are endemic to New Zealand, between four and 10 are endemic to Australia. The genus was first formally described by botanist Alexandre de Cassini in 1813.Species include:* Celmisia...

with spreading, semi- decumbent, woody stems and terminal rosettes of linear-oblong gray-green leaves. These leaves are about 2 inches (5.1 cm) long. In early summer, white-rayed flowerheads, up to 1.5 in (3.8 cm) wide with yellowish white disk florets appear. The stems of this plant up to 12 in (30.5 cm) tall, making it classified as a moderately high plant. The plant typically spreads about 12 in (30.5 cm) as well.

Celmisia walkeri is in the hardiness zone

Hardiness zone

A hardiness zone is a geographically defined area in which a specific category of plant life is capable of growing, as defined by climatic conditions, including its ability to withstand the minimum temperatures of the zone...

 9–10, and can only live in heat zones 9 and 10. Celmisia is a very tropical and heat tolerant plant.

Celmisia walkeri is native to New Zealand

New Zealand

New Zealand is an island country in the south-western Pacific Ocean comprising two main landmasses and numerous smaller islands. The country is situated some east of Australia across the Tasman Sea, and roughly south of the Pacific island nations of New Caledonia, Fiji, and Tonga...

, hence its common name is a New Zealand daisy.