Kingdom: Plantae
Division: Magnoliophyta
Class: Magnoliopsida
Order: Ranunculales
Family: Ranunculaceae
Genus: Clematis
Species: C. paniculata
Binominal name: Clematis paniculata
Synonyms: Clematis integrifolia Clematis integrifolia, Clematis indivisa.
Common name: Puawhananga ('flower of the skies'), White clematis, New Zealand clematis. Bridal Veil, Piki-kai-arero

Clematis paniculata is endemic to the North, South and Stewart Islands and is now naturalised on the Chatham Islands. It is common in lowland and low mountain slopes on the edge of forest fragments (up to 1000 m. a.s.l.).
Clematis paniculata is a woody vine that will grow from the base of a tree to have a long, bare trunk (200 mm diameter at base) with the foliage and flowers in the canopy, up to 12m above the ground. Like many other New Zealand plants, it has distinct juvenile and adult stages. In the wild it is mostly found growing in forests, spreading into treetops where it produces masses of pure white male flowers (5-10cm) in spring. These are larger than the female flowers which are produced on separate plants. Fluffy seed-heads are produced in late summer/autumn on the female plants. 
Most plants sold by garden centres are male, as the male flowers are usually larger and are showier.
C. paniculata shiny dark green leaves are three foliate and the broadly ovate leaflets are 5-10cm long and 3-5cm wide with margins that are entire or with a few rounded teeth towards the tip. The leaves of seedlings and juveniles are much narrower. The leaflet stalks twine around trunks, branches and twigs taking it high into tree canopies.
Clematis paniculata was traditionally a harbinger of spring to Maori, for whom it was also connected with the harvest of eels, a spring event. The Maori made garlands from the flowers.
Andrew Crowe in his book (Which native forest plant) described a beautiful Maori legend for these “stars of the forest”. To some tribes, whauwhaupaku (the five finger tree) and puawananga were the offspring of Puanga (Rigel, the bright star of Orion) and Rehua (Antares, the bright star of Scorpion). Their rising as morning stars signals the approach of summer, the period between these two events (June to November) coinciding with the flowering, first of whauwhaupaku (Pseudopanax arboreus and then puawananga (Clematis paniculata).

A female plant with fluffy seed heads. Photographed January.
1-Clematis paniculata Puawhananga .JPG

Plant with male flowers
Clematis paniculata Puawhananga-6.JPG

A new male flower.
Clematis paniculata-004.JPG

Mature male flowersClematis paniculata male flowers Puawananga -1.JPG 

Male flower
Clemetis paniculata-003.JPG 

Female flower
Female Clematis paniculata Puawhananga .JPG 

The fluffy seed heads of a female plant high in the treetops. Photographed North Egmont Road, Mt Egmont/Taranaki.
Seed heads of a female Clematis paniculata.JPG 

Clematis paniculata Puawhananga .JPG 

A developing seed head. They are only on the female plants.
Clematis paniculata. seed head.JPG 

A closeup of mature seed heads.
1-Clematis paniculata Puawhananga -002.JPG

A seed head discharging seeds.
1-Clematis paniculata Puawhananga -007.JPG

A seed
1-Clematis paniculata Puawhananga -005.JPG

The leaves vary in shape as seen in the photos below.
1-Clematis paniculata Puawhananga -003.JPG 

Clematis paniculata Puawhananga -002.JPG 

Clemetis paniculata-013.JPG 

The underside of a leaf.
Clemetis paniculata-014.JPG

Clematis paniculata leaf Puawananga .JPG


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

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