Detail of a palm frond at 10mm cafe in Korat, Thailand

Detail of a palm frond at 10mm cafe in Korat, Thailand in August 2017

Tree fern fronds and a big Mountain Blue Gum (Eucalyptus deanei) at the Blue Mountains in NSW Australia

Tree fern fronds and a big Mountain Blue Gum (Eucalyptus deanei) at the Blue Mountains in NSW Australia in September 2017

Tree ferns at the Blue Mountains in NSW Australia

Tree ferns at the Blue Mountains in NSW Australia in September 2017

A beautiful tree fern at the Blue Mountains in NSW Australia

A beautiful tree fern at the Blue Mountains in NSW Australia in September 2017

A tree fern at the Blue Mountains in NSW Australia

A tree fern at the Blue Mountains in NSW Australia in September 2017

The top of a cycad tree with its beautiful green fronds on a walk around Gapuwiyak, Northern Territory, Australia

The top of a cycad tree with its beautiful green fronds on a walk around Gapuwiyak, Northern Territory, Australia in May 2009

A cocoon on a cycad frond on a walk around Gapuwiyak, Northern Territory, Australia

A cocoon on a cycad frond on a walk around Gapuwiyak, Northern Territory, Australia in May 2009

Fan palms at Thung Khai Botanic Gardens, Trang, Thailand

Fan palms at Thung Khai Botanic Gardens, Trang, Thailand in May 2016

Coconut trees on Taichai Island, Thailand

Coconut trees on Taichai Island, Thailand in May 2016

Daintree tree ferns

Ferns in the Daintree, Queensland in June 2013

Crystal ferns

Ferns at Crystal Cascades, Cairns in June 2013

Palm frond

A palm tree leaf at Bondi, Sydney, in August 2009

Palm fringe

Palm frond in Krabi, Thailand in March 2010

Katherine palm

A palm leaf in Katherine, Northern Territory, in June 2009

Fern frond

Fern on the Wisdom Path on Lantau Island, Hong Kong in July 2009

Green plam frond

Palm light in Coogee, Sydney, taken in October 2009

Fern leaves

Fern at Gapuwiyak, Northern Territory, in May 2009

Cycad leaves

A Cycad outside Gapuwiyak in Arnhem Land, Northern Territory, taken in May 2009

Fern frond

Fern leaf at the Hong Kong Botanical Gardens, July 2009

Palm frond

Palm frond at the Hong Kong Botanical Gardens, July 2009.