Plants shooting in burnt 'rainforest' section of gully. Before the bushfire the small trees growing there were about 5 metres tall, with dark green foliage. They had small white flowers early in the year. The trunks are smooth and grey and can still be seen in the second photo. I thought they could be Acronychia oblongifolia (yellow-wood). I'm hoping this is a young one that is reshooting.