Diuris recurva

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Mini donkey orchid
Diuris recurva.jpg
Status DECF P4.svg
Priority Four — Rare Taxa (DEC)
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Order: Asparagales
Family: Orchidaceae
Subfamily: Orchidoideae
Tribe: Diurideae
Genus: Diuris
Species:
D. recurva
Binomial name
Diuris recurva

Diuris recurva, commonly called the mini donkey orchid [2] 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.

Contents

Description

Diuris recurva is a tuberous, perennial herb with one or two linear leaves that are 100–150 mm (4–6 in) long, about 5 mm (0.2 in) wide and folded lengthwise. Up to six pale yellow flowers with brownish to dark burgundy-coloured markings, 16–20 mm (0.6–0.8 in) long and 12–16 mm (0.5–0.6 in) wide are borne on a flowering stem 200–300 mm (8–10 in) tall. The dorsal sepal curves upwards, often backwards and is egg-shaped with the narrower end towards the base, about 8 mm (0.3 in) long and 7 mm (0.3 in) wide. The lateral sepals are linear to lance-shaped, green or reddish, 9–12.5 mm (0.4–0.5 in) long, about 2 mm (0.08 in) wide, turned downwards and usually crossed over each other. The petals are more or less erect with an egg-shaped blade 10–13 mm (0.4–0.5 in) long and 4–6.5 mm (0.16–0.26 in) wide on a greenish brown stalk 4–6 mm (0.16–0.24 in) long. The labellum is 4–5 mm (0.16–0.20 in) long and has three lobes. The centre lobe is spatula-shaped, 3–4.5 mm (0.1–0.2 in) wide and dark reddish brown with yellow patches. The side lobes are 4–5 mm (0.16–0.20 in) long and 3 mm (0.1 in) wide and curve backwards. There is a single raised, ridge-like callus along the mid-line of the labellum. Flowering occurs in July and August. [2] [3] [4] [5]

Taxonomy and naming

Diuris recurva was first formally described in 1991 by David Jones from a specimen collected near Northampton, and the description was published in Australian Orchid Review. [6] The specific epithet (recurva) is a Latin word meaning "recurved", referring to the petals and lateral sepals that are curved backwards. [3]

Distribution and habitat

The mini donkey orchid grows mostly in winter-wet heath between Badgingarra and Kalbarri in the Avon Wheatbelt, Geraldton Sandplains and Jarrah Forest biogeographic regions. [4] [7]

Conservation

Diuris recurva is classified as "Priority Four" by the Government of Western Australia Department of Parks and Wildlife, [7] meaning that is rare or near threatened. [8]

Related Research Articles

<i>Diuris brumalis</i> Species of orchid

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 carinata, commonly known as the tall bee orchid, is a species of orchid that is endemic to the south-west of Western Australia. It has between four and six leaves and up to seven large, bright yellow flowers with reddish-brown markings.

<i>Diuris corymbosa</i> Species of orchid

Diuris corymbosa, commonly called the common donkey orchid or wallflower orchid, is a species of orchid which is endemic to the south-west of Western Australia. It is similar to the purple pansy orchid but its flowers are yellow rather than purple or mauve and it flowers earlier in the year. It also resembles the winter donkey orchid but flowers later than that species. It is one of the most common orchid species in the Perth area, often forms extensive colonies and usually has numerous flowers on the one spike.

<i>Diuris drummondii</i> Species of orchid

Diuris drummondii, commonly known as the tall donkey orchid is a species of orchid which is endemic to the south-west of Western Australia. It is the tallest Diuris and is distinguished from the similar Diuris emarginata by its larger, more widely spaced flowers. The flowers are pale yellow with brown markings.

<i>Diuris orientis</i> Species of orchid

Diuris orientis, commonly called the wallflower orchid or eastern wallflower orchid, is a species of orchid which is endemic to eastern Australia. Like others in the genus Diuris, it has two ear-like petals and is similar to the common donkey orchid of Western Australia with which it has been confused. This species is found in New South Wales, Victoria, South Australia and Tasmania and its stalk-like petal "claw" is shorter in than those of D. corymbosa.

<i>Diuris brevifolia</i> Species of orchid

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.

<i>Diuris magnifica</i> Species of orchid

Diuris magnifica, commonly called the large pansy orchid is a species of orchid which is endemic to the south-west of Western Australia. It has large, colourful flowers and is common in a narrow range near the coast around Perth, often occurring with the similar but smaller Diuris corymbosa.

Diuris amplissima, commonly called the giant donkey orchid is a species of orchid that is endemic to the south-west of Western Australia. It is a rare species and the largest Diuris in Western Australia. It has two or three leaves at its base and up to seven purple and dull yellowish-brown flowers on a tall flowering stem.

<i>Diuris concinna</i> Species of orchid

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 immaculata, commonly known as the little Esperance bee orchid, is a rare species of orchid that is endemic to the south-west of Western Australia. It has between four and six leaves and up to three golden yellow flowers without markings. It is only known from near Esperance.

<i>Diuris laevis</i> Species of orchid

Diuris laevis, commonly known as the nanny goat orchid, is a rare species of orchid that is endemic to the south-west of Western Australia. It has between four and eight leaves and up to six pale yellow flowers which usually have reddish-brown markings. It has an unusually short dorsal sepal and wide labellum and is relatively common between Bunbury and Albany.

<i>Diuris palustris</i> Species of orchid

Diuris palustris, commonly known as the swamp doubletail or swamp diuris is a species of orchid which is endemic to south-eastern Australia. It has a tuft of between eight and ten twisted leaves and up to four yellow flowers with brown spots and blotches marks and blotches.

<i>Diuris picta</i> Species of orchid

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.

<i>Diuris pulchella</i> Species of orchid

Diuris pulchella, commonly called the beautiful donkey orchid is a species of orchid that is endemic to the south-eastern part of the south-west of Western Australia. It has two or three leaves at its base and up to five bright yellow and mauve flowers described as "exquisite", "spectacular" and "attractive". It grows in shallow soil on granite outcrops near Esperance.

<i>Diuris purdiei</i> Species of orchid

Diuris purdiei, commonly known as Purdie's donkey orchid, is a species of orchid that is endemic to the south-west of Western Australia. It has between five and ten leaves at its base and up to eight pale yellow flowers with reddish-brown or purplish markings. It mainly grows in swampy areas and only flowers after fires the previous summer.

Diuris secundiflora, commonly known as the one-sided donkey orchid, is a poorly-known species of orchid that is endemic to New South Wales. It has a single grass-like leaf and up to eight yellow flowers that are sometimes spotted and are all arranged on one side of the flowering stem.

<i>Diuris setacea</i> Species of orchid

Diuris setacea, commonly called the bristly donkey orchid, is a species of orchid that is endemic to the south-west of Western Australia. It has a tuft of up to ten twisted leaves at its base and up to seven yellow flowers with a few brown markings. It grows in moist soil on granite outcrops and flowers much more prolifically after fire the previous summer.

<i>Diuris tricolor</i> Species of orchid

Diuris tricolor, commonly known as the long-tailed donkey orchid or pine donkey orchid, is a species of orchid that is endemic to New South Wales, although a single plant has been found in Victoria. 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.

References

  1. "Diuris recurva". World Checklist of Selected Plant Families (WCSP). Royal Botanic Gardens, Kew.
  2. 1 2 Jones, David L. (2006). A complete guide to native orchids of Australia including the island territories. Frenchs Forest, N.S.W.: New Holland. p. 136. ISBN   1877069124.
  3. 1 2 Jones, David L. (1991). "New taxa of Australian Orchidaceae". Australian Orchid Research. 2: 61–62.
  4. 1 2 Brown, Andrew; Dixon, Kingsley; French, Christopher; Brockman, Garry (2013). Field guide to the orchids of Western Australia : the definitive guide to the native orchids of Western Australia. Simon Nevill Publications. p. 210. ISBN   9780980348149.
  5. Hoffman, Noel; Brown, Andrew (2011). Orchids of South-West Australia (3rd ed.). Gooseberry Hill: Noel Hoffman. p. 458. ISBN   9780646562322.
  6. "Duiris recurva". APNI. Retrieved 4 April 2018.
  7. 1 2 "Diuris recurva". FloraBase . Western Australian Government Department of Parks and Wildlife.
  8. "Conservation codes for Western Australian Flora and Fauna" (PDF). Government of Western Australia Department of Parks and Wildlife. Retrieved 25 July 2019.