Ride Lightly: Protect one of the rarest plants in Sydney

A fight for survival for this threatened plant - and mountain bikers can help save it.

Caley's grevillea (Grevillea caleyi)

There are only about 1000 Grevillea caleyi plants left in the wild, in the suburbs of Terry Hills, Ingleside, Belrose and Duffy's Forest, all in the Northern Beaches of Sydney. Volunteer bush regenerators and National Parks and Wildlife Service rangers work hard to protect these plants from weeds and disturbances to safeguard the species for future generations.

Grevillea caleyi is killed by fire, and so regeneration relies entirely on seed stored in the soil. That's why it is so important that illegal tracks aren't set up – because even though this plant may not be obvious and flowering at the time, the seeds may be waiting for their moment in the sunshine, lying in wait under the ground. National Parks and Wildlife Service spends a lot of time planning where to place tracks to protect this species. In the past this crucial habitat and the seeds stored beneath the soil have been damaged and fragmented by people illegally creating trails for horse riding and mountain bike riding.

This plant's survival depends on everyone sticking to established tracks and trails, appreciating the natural world, and riding lightly.