Pandanus tectorius var. australianus—Screw Pine—PANDANACEAE.

Pandanus tectorius

Link to Images on Flickr.

Habitat—Grows on exposed coastal headlands, margins of Rainforest and along beaches.

Distribution— North from Port Macquarie district in New South Wales to North Queensland. Also on Norfolk Island.

Description—Shrub or small tree to 5 m high, with prop roots; stem much—branched; stem and branches ringed with distinct leaf scars.

Local occurrences

One Mile Beach, Red Head and Royal Botanic Gardens Sydney.

Leaves.— In 4 rows, spiralled, crowded towards apex of stems or branches, simple, linear, up to 1 m long, 5 to 8 cm wide, margins recurved, margins and midrib prickly, base sheathing.

Pandanus tectorius
Pandanus tectorius

Inflorescence.—Male spikes formed into columns by the fused filaments of the anthers. Female spikes pedunculate, 5 to 12 cm long. Carpels united into groups of 7 to 11, forming a hard phalange. Phalanges aggregated onto a thick rachis into an ovoid, infructescence up to 25 cm diam.

Flowering.—Throughout the year.

Fruit.— A drupe; seed solitary

Ripe.—Throughout the year.

Pandanus tectorius