Arthrochilus, commonly called elbow orchids, is a genus of about fifteen species of flowering plants from the orchid family (Orchidaceae) and is found in Australia and New Guinea. The flowers are pollinated by male thynnid wasps which attempt to mate with the flower and are held in place by hooks while the pollinium is transferred between insect and flower.
Spiculaea is a genus of plants defined by a single species, Spiculaea ciliata, commonly known as elbow orchid, and allied to the family Orchidaceae. Endemic to the south-west of Western Australia, they are unusual in a number of respects; it grows in shallow soil on granite rock outcrops, grows and flowers in the hottest months of the year and has a unique method of using thynnid wasps as pollinators.
Caleana, commonly known as duck orchids, is a genus of flowering plants in the orchid family, Orchidaceae that is found in Australia and New Zealand. The Australian species are found in all states but have not been recorded in the Northern Territory. Duck orchids have a single leaf and one or a few, dull-coloured, inconspicuous flowers. Most species are found in Western Australia but one species occurs in eastern Australia and one occurs in eastern Australia and New Zealand. Orchids in this genus as well as the hammer orchids (Drakaea) are pollinated by male thynnid wasps.
Orthoceras strictum, commonly known as the bird's-mouth orchid or horned orchid, is a species of orchid native to eastern and southern Australia, New Zealand and New Caledonia. It has between two and five linear leaves and up to nine yellowish green, brownish or blackish flowers with two long, erect to spreading lateral sepals.
Caladenia dilatata, commonly known as the green-comb spider orchid and as koolin in indigenous language, is a plant in the orchid family Orchidaceae and is endemic to south-eastern Australia. It has a single leaf and a single yellowish-green flower with reddish stripes and occurs in Victoria and Tasmania. It is similar to C. necrophylla which occurs in south-east South Australia and to C. concinna from southern New South Wales.
Drakaea concolor, commonly known as the kneeling hammer orchid, is a species of orchid endemic to the south–west of Western Australia. The species is only known from a few areas in the far west of the state and has been declared "vulnerable" by the Australian Government and "threatened" by the Government of Western Australia.
Drakaea livida, commonly known as warty hammer orchid is a species of orchid endemic to the south–west of Western Australia. It is pollinated by a single species of male thynnid wasp using sexual deception. The orchid's labellum is similar in shape and scent to a flightless female thynnid wasp. Although the species was formally described in 1842, the description was often later overlooked and other hammer orchids were given the name Drakea livida. It is now known to be, along with Drakaea glyptodon, one of the most widespread of the genus.
Drakaea andrewsiae, commonly known as the lost hammer orchid is a species of orchid endemic to the south–west of Western Australia. The species was first collected in 1930, has only been collected on two other occasions and photographed a few other times. It was, however, not formally described until 2007. No living examples of this species have been observed since 6 October 2000.
Arthrochilus latipes, commonly known as robust elbow orchid, is a flowering plant in the orchid family (Orchidaceae) and is endemic to the "Top End" of the Northern Territory in Australia. Each plant has from two to four ground-hugging leaves and between three and fifteen flowers during the wet season and the species often forms spreading colonies on sandstone escarpments. Like others in the genus, the flowers are pollinated by a species of thynnid wasp.
Caladenia drakeoides, commonly known as the hinged dragon orchid is a species of orchid endemic to the south-west of Western Australia. It has a single hairy leaf and a single greenish-yellow and red flower with a hinged labellum resembling a female thynnid wasp.
Caladenia rosella, commonly known as the rosella spider orchid is a plant in the orchid family Orchidaceae and is endemic to south-eastern Australia. It is a ground orchid with a single hairy leaf and a single scented pink flower. Although it may have had a wider distribution in the past, the total number of plants in 2000 was estimated to be 120 in four populations in Victoria. There is a single record from New South Wales but the orchid is classified as "extinct" in that state.
Pterostylis cucullata, commonly known as the leafy greenhood, is a plant in the orchid family Orchidaceae and is endemic to south-eastern Australia. It has a rosette of fleshy leaves at its base and a single white, green and reddish-brown flower.
Arthrochilus oreophilus, commonly known as montane elbow orchid, is a flowering plant in the orchid family (Orchidaceae) and is endemic to higher places in far north Queensland. It has a rosette of leaves at its base and up to fifteen green, insect-like flowers with dark reddish brown glands on its labellum.
Arthrochilus byrnesii, commonly known as the sandstone truffle orchid, is a rare species of flowering plant in the orchid family (Orchidaceae) and is endemic to the far north-west of Australia. It has three dark green leaves at its base and up to fifteen greenish, insect-like flowers with dark reddish black glands on its labellum. This species is known by some authorities as Phoringopsis byrnesii.
Arthrochilus corinnae, commonly known as the swamp elbow orchid, is a flowering plant in the orchid family (Orchidaceae) and is endemic to the northern part of Cape York in Queensland. It has two or three dull bluish green leaves near its base and up to twelve pale green, insect-like flowers with shiny yellowish glands on its labellum.
Arthrochilus irritabilis, commonly known as clubbed elbow orchid, is a flowering plant in the orchid family (Orchidaceae) and is endemic to Queensland. It has up to five leaves and up to thirty light greenish or reddish, insect-like flower with reddish, hair-like glands on its labellum. There is a single record of this species from Papua New Guinea.
Arthrochilus lavarackianus, commonly known as the glaucous truffle orchid, is a species of flowering plant in the orchid family (Orchidaceae) and is endemic to the Torres Strait and Tropical North Queensland. It has one or two bluish green leaves at its base and up to fifteen greenish, insect-like flowers with red glands on its mushroom-like labellum. This species is known by some authorities as Phoringopsis lavarackiana.
Arthrochilus prolixus, commonly known as wispy elbow orchid, is a flowering plant in the orchid family (Orchidaceae) and is endemic to eastern Australia. It has a rosette of bluish green leaves at its base and up to twenty two pale green, insect-like flowers with dark reddish to purplish glands on its labellum.
Arthrochilus rosulatus, commonly known as rosetted elbow orchid, is a flowering plant in the orchid family (Orchidaceae) and is endemic to Tropical North Queensland. It has a rosette of bluish green leaves surrounding its base and up to fifteen pale green, insect-like flowers with dark red glands on its labellum.
Arthrochilus stenophyllus, commonly known as the narrow-leaved elbow orchid, is a flowering plant in the orchid family (Orchidaceae) and is endemic to Tropical North Queensland. It has a rosette of dull green leaves on side growth at its base and up to fifteen pale green, insect-like flowers with dark red to brownish glands on its labellum.
