Aotearoa's variable vines

Aotearoa, New Zealand is home to a diverse group of climbing plants called vines. Vines are plants that germinate and have roots in forest soil but, unlike trees and shrubs, cannot stand upright without support from other plants. 

One of our best known vines - kareao, supplejack, Ripogonum scandens. C. Kirby.

I use the term "variable vines" because our 25+ species exhibit many different lifestyle and morphological characteristics. We have vines that climb their hosts using: leaves, tendrils, hooks, stems or roots. We have vines that become woody while others are herbaceous. We have vines that reach top of the highest trees and become a dominant feature in the canopy while others only climb a few metres up the trunk of their host tree. We even have one vine species that taps into the stem of its host and takes resources to aid its own growth (Cassytha paniculata)!

When it comes to reproduction some vines have a few large showy flowers (e.g. Clematis species), some have many small and brightly coloured flowers (e.g. Metrosideros species) while others are very subtle (e.g. Muehlenbeckia species). Fruiting sees a range of colourful fruit (e.g. Passiflora tetrandra, Rubus species) plain wind-dispersed seeds (e.g. Metrosideros species) or tiny spores (e.g. Blechnum filiforme). The following provides a snap shot of some of this variety.

Climbing mechanisms:
Photos: C. Kirby

Flowering:
Photos: C. Kirby

Fruiting:
Photos: C. Kirby