|Blue Pincushion Brunonia australis Goodeniaceae, north of Perth, Western Australia.|
|Hand Flower Cheiranthera cyanea Pittosperaceae, Wee Jasper, New South Wales.|
The common name refers to the oddly-positioned anthers (the genus name means 'hand-anther').
|Narrow-leaved Squill Chamaescilla spiralis Anthericaceae, Esperance, Western Australia.|
A delightful lily, which can grow en masse from pure sand.
|Nodding Blue Lily Stypandra glauca Phormiaceae, Canberra.|
|Blue Tinsel Lily Calectasia grandiflora Dasypogonaceae, Moore River National Park, Western Australia.|
One of those which looks bluer in my mind than it does in this photograph.
|Smooth Flax Lily Dianella longifolia Phormiaceae, Canberra.|
|Blue Lechanaultia Lechanaultia biloba Goodeniaceae, north of Perth, Western Australia.|
One of the most breathtakingly blue flowers I know; quite stunning.
|Blue Fingers Cyanicula caerulea, Canberra.|
|Waxlip Orchid Glossodia major, Canberra.|
|Bluebeard Pheladenia (Caladenia) deformis, Alligator Gorge, South Australia.|
|Two sun orchids; Thelymitra media and T. ixioides, Ulladulla, New South Wales.|
|Mountain Beard Orchid Calochilus montanus, Canberra.|
The shiny blue smooth plates on the labellum seem very good candidates for a structural blue,
formed by layers of cells over a dark background.
|Tasman Flax Lily Dianella tasmanica, Namadgi National Park.|
It seems that blue berries get their colour from a waxy layer scattering blue light.
|Bluebush Maireana sedifolia, Gawler Ranges, South Australia.|
Here the blue is from a waxy leaf coating which helps protect from water loss in a harshly arid environment;
perhaps the colour is an incidental byproduct of this.