Lynda and I saw this Drosera, and the equally common Drosera peltata (or thereabouts), in Ku-ring-gai National Park heathland today. A lot of plants in flower, if a little sporadically - Philotheca salsolifolia (the citrus family - Rutaceae), Hemigenia purpurea (the mint family), a few of the Grevillea and Hibbertia species, and lots of banksias. All very pretty in the later afternoon light.
But growing next to the Drosera was something of far more import - its probably Zygogonium heydrichii, a green alga that usually has a purple tinge in the heathlands. We don't know much about this species but it's all over the Sydney sandstone area, in any semi-permanent water seap over sand. Under the microscope it's not one of the prettier species so I won't show you a picture of it magnified. For now you'll have to trust me that this is more interesting than it looks here: