''Calochilus russeus'', commonly known as the reddish beard orchid, is a species of

orchid Orchids are plants that belong to the family Orchidaceae (), a diverse and widespread group of flowering plants with blooms that are often colourful and fragrant. Along with the Asteraceae, they are one of the two largest families of flowering ...

endemic Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found els ...

to the

Northern Tablelands The Northern Tablelands, also known as the New England Tableland, is a plateau and a region of the Great Dividing Range in northern New South Wales, Australia. It includes the New England Range, the narrow highlands area of the New England reg ...

New South Wales ) , nickname = , image_map = New South Wales in Australia.svg , map_caption = Location of New South Wales in AustraliaCoordinates: , subdivision_type = Country , subdivision_name = Australia , established_title = Before federation , es ...

. 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 Ebor is the abbreviation of the Latin '' Eboracum'', the early name of York in Britain. It may also mean: * Ebor, the legal alias of the Archbishops of York * Ebor, Manitoba, a community in Canada * Ebor, New South Wales, a village in Australia ...

Description

''Calochilus russeus'' is a terrestrial,

perennial A perennial plant or simply perennial is a plant that lives more than two years. The term ('' per-'' + '' -ennial'', "through the years") is often used to differentiate a plant from shorter-lived annuals and biennials. The term is also wide ...

deciduous In the fields of horticulture and Botany, the term ''deciduous'' () means "falling off at maturity" and "tending to fall off", in reference to trees and shrubs that seasonally shed leaves, usually in the autumn; to the shedding of petals, a ...

herb In general use, herbs are a widely distributed and widespread group of plants, excluding vegetables and other plants consumed for macronutrients, with savory or aromatic properties that are used for flavoring and garnishing food, for medicina ...

with an underground

tuber Tubers are a type of enlarged structure used as storage organs for nutrients in some plants. They are used for the plant's perennation (survival of the winter or dry months), to provide energy and nutrients for regrowth during the next growin ...

and a single thick, dark green, channelled leaf long and wide. Unlike some others in the

genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial n ...

, the leaf is fully developed at flowering time. Between four and twelve greenish flowers with red stripes are borne on a flowering stem tall. Individual flowers last for between two and five days. The

dorsal Dorsal (from Latin ''dorsum'' ‘back’) may refer to: * Dorsal (anatomy), an anatomical term of location referring to the back or upper side of an organism or parts of an organism * Dorsal, positioned on top of an aircraft's fuselage * Dorsal co ...

sepal A sepal () is a part of the flower of angiosperms (flowering plants). Usually green, sepals typically function as protection for the flower in bud, and often as support for the petals when in bloom., p. 106 The term ''sepalum'' was coined ...

is long, wide and forms a hood over the rest of the

column A column or pillar in architecture and structural engineering is a structural element that transmits, through compression, the weight of the structure above to other structural elements below. In other words, a column is a compression member ...

. The

lateral Lateral is a geometric term of location which may refer to: Healthcare *Lateral (anatomy), an anatomical direction * Lateral cricoarytenoid muscle * Lateral release (surgery), a surgical procedure on the side of a kneecap Phonetics *Lateral co ...

sepals are long, about wide and spread apart from each other behind the labellum. The

petal Petals are modified leaves that surround the reproductive parts of flowers. They are often brightly colored or unusually shaped to attract pollinators. All of the petals of a flower are collectively known as the ''corolla''. Petals are usuall ...

s are long, about wide, asymmetrically shaped, have a hooked tip and curve forwards partly surrounding the column and upper labellum. The labellum is long, wide, with short, thick red calli near its base, thick hairs up to long near its middle and a

glandular In animals, a gland is a group of cells in an animal's body that synthesizes substances (such as hormones) for release into the bloodstream (endocrine gland) or into cavities inside the body or its outer surface (exocrine gland). Structure De ...

tip which is long and about wide. The column has two purple "eyes". Flowering occurs from December to February.

Taxonomy and naming

''Calochilus russeus'' was first formally described in 2004 by David Jones from a specimen collected near the road between

Guyra Guyra is a town situated midway between Armidale and Glen Innes on the Northern Tablelands in the New England region of New South Wales, Australia. It is within Armidale Regional Council and at the 2016 census, it had a population of 1,983. M ...

and

and the description was published in ''The Orchadian''. The

specific epithet In taxonomy, binomial nomenclature ("two-term naming system"), also called nomenclature ("two-name naming system") or binary nomenclature, is a formal system of naming species of living things by giving each a name composed of two parts, bot ...

(''russeus'') is a

Latin Latin (, or , ) is a classical language belonging to the Italic branch of the Indo-European languages. Latin was originally a dialect spoken in the lower Tiber area (then known as Latium) around present-day Rome, but through the power ...

word meaning "reddish".

Distribution and habitat

The reddish beard orchid grows with

bracken Bracken (''Pteridium'') is a genus of large, coarse ferns in the family (biology), family Dennstaedtiaceae. Ferns (Pteridophyta) are vascular plants that have alternating generations, large plants that produce spores and small plants that produ ...

, grasses and low shrubs in

peppermint Peppermint (''Mentha'' × ''piperita'') is a hybrid species of mint, a cross between watermint and spearmint. Indigenous to Europe and the Middle East, the plant is now widely spread and cultivated in many regions of the world.Euro+Med Plantb ...

forest near Ebor. It occurs as scattered individuals in relatively low numbers, including in

Cathedral Rock National Park Cathedral Rock is a national park west of Waterfall Way in New South Wales, Australia, east of Armidale and about north of Sydney. This park is lying between the Guy Fawkes River and Macleay Range, and is about six kilometres west of Eb ...

References

{{Taxonbar, from=Q15495117 russeus Flora of New South Wales Endemic orchids of Australia Plants described in 2004