Flowers that look like tiny hummingbirds

Crotalaria cunninghamii, also known as green birdflower or regal birdflower, is a plant native to, and widespread, in inland northern Australia. It has hairy or woolly branches and dull green foliage. The plant’s flowers grow on long spikes at the ends of its branches and greatly resemble tiny hummingbirds attached by its beak to the central stalk of the flowerhead.
Redditor Octopus Prime posted this photo of the unusual looking plant.

By Atlas of Living Australia – Day 3 – Photo 3: Crotalaria cunninghamii (Green Bird Flower)Uploaded by berichard, CC BY 2.0, Link