Black Mountain leopard orchid | |
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Diuris nigromontana growing on Black Mountain in the A.C.T. | |
Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Monocots |
Order: | Asparagales |
Family: | Orchidaceae |
Subfamily: | Orchidoideae |
Tribe: | Diurideae |
Genus: | Diuris |
Species: | D. nigromontana |
Binomial name | |
Diuris nigromontana | |
Diuris nigromontana, commonly known as Canberra donkey orchid [2] or Black Mountain leopard orchid, [3] is a species of orchid that is endemic to the Australian Capital Territory. It has two grass-like leaves and up to eight yellow-orange flowers brownish marks on the labellum.
Diuris nigromontana is a tuberous, perennial herb with two linear leaves folded lengthwise. Between two and eight yellow-orange flowers are borne on a flowering stem up to 350 mm (14 in) tall. The dorsal sepal is tall and usually erect, more or less triangular but with a bluntly-pointed tip. The lateral sepals are crossed, but usually not turned backwards. The petals are usually erect, egg-shaped to round. The labellum has brownish marks and three lobes, the side lobes relatively large and oblong. Flowering occurs in October and November. [2] This orchid is similar to D. semilunulata but is a brighter shade of yellow, has less prominent darker markings and erect petals. [4]
Diuris nigromontana was first formally described in 2008 by David Jones in "The Orchadian" from a specimen collected on Black Mountain. [4] [5] The specific epithet means "black mountain", referring to Black Mountain where this species is common. [4]
Canberra donkey orchid grows in shrubby woodland and forest, and is locally common around Canberra in the Australian Capital Territory. [2] [4]
Diuris pardina, commonly known as the leopard orchid or leopard doubletail is a species of orchid which is endemic to south-eastern Australia. It has two or three grass-like leaves and up to ten yellow flowers with reddish-brown marks and blotches.
Diuris behrii, commonly known as golden cowslips, is a species of orchid which is endemic to eastern Australia. It occurs in South Australia, Victoria, New South Wales and the Australian Capital Territory. It has between three and six grass-like leaves and a flowering stem with up to four drooping, yellow flowers with dark streaks on the labellum. The flowers appear between September and November in its native range.
Diuris brumalis, commonly known as the winter donkey orchid, is a species of orchid that is endemic to the south-west of Western Australia. It is one of the first species of donkey orchid to flower in Western Australia each year and its flowers have been shown to attract the same insects that pollinate other species, but without offering a food reward.
Diuris sulphurea, commonly called the tiger orchid or hornet orchid, is a species of orchid which is endemic to eastern Australia. It has up to three leaves, and a flowering stem with up to seven bright yellow flowers with dark brown markings.
Diuris brevifolia, commonly known as the short-leaved donkey orchid, is a species of orchid which is endemic to South Australia. It has a few narrow, twisted leaves and a flowering stem with up to five bright yellow flowers with brown markings and relatively large, spreading lobes on the labellum. This is a relatively late-flowering species of donkey orchid.
Diuris punctata, commonly known as the purple donkey orchid is a species of orchid which is endemic to south-eastern continental Australia. It has two grass-like leaves and up to ten purple or mauve flowers, often with darker, sometimes yellow marks. A yellow form from near Guyra is probably now extinct.
Diuris arenaria, commonly known as the Tomaree donkey orchid or sand doubletail is a species of orchid which is endemic to a very small area of New South Wales. It has two grass-like leaves and up to nine mauve or light purple and white flowers. It has a very limited distribution near Newcastle.
Diuris byronensis, commonly known as the Byron Bay donkey orchid, is a species of orchid that is endemic to the Arakwal National Park in New South Wales. It has one or two grass-like leaves and up to five bright yellow flowers with blackish markings. It has a very limited distribution near Byron Bay.
Diuris concinna, commonly called the elegant donkey orchid, is a species of orchid which is endemic to the south-west of Western Australia. It has up to five linear leaves at its base and up to five pale yellow flowers with brown markings. It is found along the south coast, often growing in areas that are flooded in winter and flowering more prolifically after fire the previous summer.
Diuris emarginata, commonly called the late donkey orchid, is a species of orchid which is endemic to the south-west of Western Australia. It has up to six leaves and a flowering stem with up to eight yellow flowers with brown markings but only after fires the previous summer.
Diuris heberlei, commonly called Heberle's donkey orchid, is a species of orchid which is endemic to the south-west of Western Australia. It has three to five linear leaves at its base and up to four bright yellow flowers with a reddish brown border around the labellum callus. It is found along the south coast and is one of the last Diuris to flower in Western Australia.
Diuris picta, commonly called the granite bee orchid or granite donkey orchid, is a species of orchid which is endemic to the south-west of Western Australia. It has between three and five leaves at its base and up to eight creamy-white to yellow flowers with brownish purple markings. It grows on granite outcrops between Menzies and Lake King.
Diuris platichila, commonly known as the Blue Mountains doubletail, is a species of orchid that is endemic to a few isolated places in the Blue Mountains in New South Wales. It has two leaves and up to eight yellow flowers with dark markings on the dorsal sepal and labellum. It has relatively long, thin lateral sepals and the central lobe of the labellum is wedge-shaped. It forms hybrids with other species of Diuris.
Diuris recurva, commonly called the mini donkey orchid is a species of orchid that is endemic to the south-west of Western Australia. It has one or two leaves at its base, up to six small pale yellow and brownish flowers and grows in winter-wet places between Badgingarra and Kalbarri.
Diuris tricolor, commonly known as the long-tailed donkey orchid or pine donkey orchid, is a species of orchid that is endemic to eastern Australia. It has up to three grass-like leaves and up to six orange-coloured to yellow flowers with white and purplish tints. The lateral sepals are unusually long.
Diuris brevis, commonly known as short-nosed donkey orchid, is a species of orchid that is endemic to a restricted area in the south-west of Western Australia. It has two or three linear leaves and a flowering stem with up to four small yellow and brown flowers with a short labellum.
Diuris carecta, commonly known as sedge-loving donkey orchid, is a species of orchid that is endemic to the west of Western Australia. It has two or three linear leaves and a tall flowering stem with up to six yellow and brown flowers with strongly curved lateral sepals.
Diuris daltonii is a species of orchid that is endemic to western Victoria. It has one or two leaves and up to seven purple flowers and is similar to D. punctata, with which it was previously included..
Diuris leopardina is a species of orchid that is endemic to south-eastern continental Australia. It has between two or three grass-like leaves of different lengths, and a flowering stem with up to five pale yellow to butter yellow flowers with reddish brown or purple marks and patterns, and leopard-like spots on the back.
Diuris systena, commonly known as New England golden moths, is a species of orchid that is endemic to the Northern Tablelands of New South Wales. It has two or three grass-like, narrowly linear leaves and up to four lemon yellow and brownish-green flowers.