Calochilus caesius

Last updated

Blue beard orchid
Scientific classification
Kingdom:
(unranked):
(unranked):
Order:
Family:
Genus:
Species:
C. caesius
Binomial name
Calochilus caesius

Calochilus caesius, commonly known as the blue beard orchid, [2] is a species of orchid endemic to the Northern Territory in Australia. It has a single leaf which is not present during flowering and up to five pale green, very short-lived flowers with a bluish-red "beard".

Contents

Description

Calochilus caesius is a terrestrial, perennial, deciduous, herb with an underground tuber and a single leaf 100–200 mm (4–8 in) long and 3–5 mm (0.1–0.2 in) wide but which is not present during flowering. Up to five pale green flowers 12–15 mm (0.5–0.6 in) long and 10–12 mm (0.4–0.5 in) wide are borne on a thin, wiry flowering stem 200–400 mm (8–20 in) tall. The dorsal sepal is 5–6 mm (0.20–0.24 in) long and 3–4 mm (0.1–0.2 in) wide. The lateral sepals are 6–7 mm (0.2–0.3 in) long and about 4 mm (0.2 in) wide. The petals are 5–6 mm (0.20–0.24 in) long and 1.5–2.5 mm (0.06–0.1 in) wide. The labellum is flat, pale green and red, 12–13 mm (0.47–0.51 in) long and 3.5–5.5 mm (0.1–0.2 in) wide with bluish red hairs up to 2 mm (0.08 in) covering about three quarters of the labellum. The column lacks the sham "eyes" of some other beard orchids. Flowering occurs from December to February but each flower only lasts a few hours. [2]

Taxonomy and naming

Calochilus caesius was first formally described in 2004 by David Jones and the description was published in The Orchadian from specimens collected at Yarrawonga Swamp near Darwin. [3] The specific epithet (caesius) is a Latin word meaning "bluish gray". [4]

Distribution and habitat

The blue beard orchid grows in swampy places with rushes and sedges in the far north of the Northern Territory including Garig Gunak Barlu National Park, Kakadu National Park and Melville Island. [2]

Related Research Articles

<i>Calochilus robertsonii</i> species of plant

Calochilus robertsonii, commonly known as the purple beard orchid or purplish beard orchid, is a species of orchid native to Australia and New Zealand. It has a single dark green leaf and up to nine green to brown flowers with reddish or purplish stripes. The labellum has a glossy purple, mauve, or bronze-coloured beard with a ridge between the "eye" spots.

<i>Calochilus paludosus</i> species of plant

Calochilus paludosus, commonly known as the red beard orchid or red beardie, is a species of orchid native to Australia and New Zealand. It has a single fleshy, light green leaf and up to nine greenish flowers with reddish stripes. The labellum has a dull red or coppery coloured beard and lacks the "eye" spots of other beard orchids.

<i>Calochilus russeus</i> species of plant

Calochilus russeus, commonly known as the reddish beard orchid, is a species of orchid endemic to the Northern Tablelands of New South Wales. It has a single thick, dark green leaf and up to twelve greenish flowers with red stripes and a hairy labellum which is the largest part of the flower. It is a rare orchid, growing as isolated individuals near Ebor.

<i>Calochilus therophilus</i> species of plant

Calochilus therophilus, commonly known as the late beard orchid, is a species of orchid endemic to eastern Australia. It has a single channelled, dark green leaf with a reddish base and up to fifteen dull greenish flowers with bold red stripes. The labellum has a dark purplish beard with two "eye" spots. Unlike that of other beard orchids, there is no prominent ridge between the eye spots.

<i>Calochilus montanus</i> species of plant

Calochilus therophilus, commonly known as the mountain beard orchid, is a species of orchid endemic to New South Wales and the Australian Capital Territory. It has a single fleshy, channelled, dark green leaf and up to fifteen green flowers with reddish lines. The labellum has two shiny metallic blue to purple plates near its base and there is no ridge between the two "eyes" on the column.

<i>Calochilus caeruleus</i> species of plant

Calochilus caeruleus, commonly known as the wiry beard orchid, is a species of orchid native to northern Australia and New Guinea. It has a single leaf which continues to develop during flowering and up to twelve greenish flowers with reddish brown markings and a labellum with a red "beard".

<i>Calochilus campestris</i> species of plant

Calochilus campestris, commonly known as the copper beard orchid, is a species of orchid endemic to south-eastern Australia. It has a single fleshy, channelled leaf and up to fifteen pale green and red flowers with a purple "beard".

<i>Calochilus herbaceus</i> species of plant

Calochilus herbaceus, commonly known as the pale beard orchid, is a species of orchid native to south-eastern Australia and northern New Zealand. It has a single very short, rigid, fleshy leaf and up to eight pale green to brownish flowers with reddish stripes and a purple "beard".

Calochilus ammobius, commonly known as the sand beard orchid, is a species of orchid endemic to Queensland. It has a single leaf which is not present during flowering and up to three dull green flowers with reddish brown streaks and a labellum with a purple "beard".

Calochilus cleistanthus, commonly known as the pallid beard orchid, is a species of orchid endemic to Queensland. It has up to four small, pale green to yellowish green flowers which remain closed and the plant is apparently leafless. It is only known from a single location on the Cape York Peninsula.

Calochilus gracillimus, commonly known as the slender beard orchid or late beard orchid, is a species of orchid endemic to eastern Australia. It has a single dark green leaf with a reddish base and up to nine green flowers with red stripes and a reddish, brownish or purplish "beard".

Calochilus grandiflorus, commonly known as the giant beard orchid or golden beard orchid, is a species of orchid endemic to eastern Australia. It has a single leaf with a reddish base and up to fifteen relatively large golden bronze-coloured flowers with a red or coppery red "beard".

Calochilus holtzei, commonly known as the ghostly beard orchid, is a species of orchid endemic to northwestern Australia. It has a single leaf and up to twenty pale green to yellowish flowers with red markings and a labellum with a greenish "beard".

Calochilus imperiosus, commonly known as the imperial beard orchid, is a species of orchid endemic to northern Australia. It has a single leaf and up to fifteen dull green flowers with red or purple markings and a labellum with a pinkish red "beard".

Calochilus metallicus, commonly known as the metallic beard orchid, is a species of orchid endemic to Tropical Queensland. It has a single dark green leaf and up to four pale green flowers with a pinkish or reddish "beard" on the labellum.

Calochilus praealtus, commonly known as the lofty beard orchid, is a species of orchid endemic to the Northern Tablelands of New South Wales. It has a single pale green leaf and up to six pale green flowers with faint red stripes and a labellum with a dark purple beard. It is only known from two mountainous areas.

Calochilus psednus, commonly known as the Cardwell beard orchid, is a species of orchid endemic to Queensland. It has up to three bluish green flowers with reddish brown lines and a labellum with a purplish "beard". The plant is leafless when flowering. It is only known from a small area near Cardwell.

Calochilus pulchellus, commonly known as the pretty beard orchid, is a species of orchid endemic to the south coast of New South Wales. It has a single dark green leaf with a dark red base and up to five pale green to greenish yellow flowers with red striations and a labellum with a coppery red "beard". Fewer than thirty plants growing in three sites are known.

Calochilus sandrae, commonly known as the brownish beard orchid, is a species of orchid endemic to the higher parts of southern New South Wales. It has a single greenish brown leaf with a reddish base and up to five brownish green flowers with red striations and a labellum with a brownish purple "beard".

Calochilus uliginosus, commonly known as the swamp beard orchid, is a species of orchid endemic to Western Australia. It has a single dark green leaf with a reddish purple base and up to seven greenish to brownish flowers with red lines and a labellum with a reddish purple beard.

References

  1. "Calochilus caesius". World Checklist of Selected Plant Families (WCSP). Royal Botanic Gardens, Kew.
  2. 1 2 3 Jones, David L. (2006). A complete guide to native orchids of Australia including the island territories. Frenchs Forest, N.S.W.: New Holland. p. 264. ISBN   1877069124.
  3. "Calochilus caesius". APNI. Retrieved 28 June 2018.
  4. Brown, Roland Wilbur (1956). The Composition of Scientific Words. Washington, D.C.: Smithsonian Institution Press. p. 145.