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NZ Plants

Dicksonia lanata - tuokura

Family: Dicksoniaceae

Dicksonia lanata is a prostrate tree fern with runners that give rise to dense colonies of plants. The frond is rough to the touch and has a densely hairy stalk (stipe) and midrib (rachis).
An endemic species found at higher elevations on the North Island where it favours damp areas near tree line and down to sea level on the South Island.

lVegetative characteristics

Fertile frond and sporangia

Plant form: slender prostrate and branching trunk with fronds up to 2 m in length

Frond appearance: leaflets ovate with inrolled margins

Frond stalk, midrib: hairs

Sporangium location: on lower frond surface

Frond shape: elliptic

Sporangium position: leaflet margin

Frond blade: 3-4 pinnate (divided 3-4 x into leaflets or pinnae)

Sporangia distribution: in groups (sori)

Frond surface: harsh, leathery

Sorus shape: circular

Leaflets: elliptic with rounded teeth and a sharp tip

Sorus covering: reflexed margin and indusium