Caladenia exilis subsp. vanleeuwenii

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Moora spider orchid
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Order: Asparagales
Family: Orchidaceae
Subfamily: Orchidoideae
Tribe: Diurideae
Genus: Caladenia
Species:
Subspecies:
C. e. subsp. vanleeuwenii
Trinomial name
Caladenia exilis subsp. vanleeuwenii
Synonyms [1]
  • Calonemorchis exilis subsp. vanleeuwenii(Hopper & A.P.Br.) D.L.Jones & M.A.Clem.
  • Calonema exilis subsp. vanleeuwenii(Hopper & A.P.Br.) D.L.Jones & M.A.Clem.
  • Jonesiopsis exilis subsp. vanleeuwenii(Hopper & A.P.Br.) D.L.Jones & M.A.Clem.

Caladenia exilis subsp. vanleeuwenii, commonly known as the Moora spider orchid, is a plant in the orchid family Orchidaceae and is endemic to the south-west of Western Australia. It is a relatively rare spider orchid with a single erect, hairy leaf and up to three variably-coloured flowers with a small white, red-striped labellum. It differs from subspecies exilis in having variably coloured flowers, different growth habit, earlier flowering and different habitat.

Contents

Description

Caladenia exilis subsp. vanleeuwenii is a terrestrial, perennial, deciduous, herb with an underground tuber which grows singly or in small tufts. It has a single erect, hairy leaf, 60–120 mm (2–5 in) long and 3–5 mm (0.1–0.2 in) wide. Up to three flowers 60–120 mm (2–5 in) long and 40–60 mm (1.6–2.4 in) wide are borne on a spike 140–250 mm (6–10 in) tall. The flowers are white, red, pale yellow or cream-coloured. The dorsal sepal is erect, 50–90 mm (2–4 in) long and about 2 mm (0.08 in) wide and tapers to a dark, thread-like tip. The lateral sepals and petals are more or less drooping with long, dark, thread-like tips. The lateral sepals are less than 50–90 mm (2–4 in) long, about 3 mm (0.1 in) wide at the base and the petals are 50–70 mm (2–3 in) long and about 2 mm (0.08 in) wide at the base. The labellum is 8–12 mm (0.3–0.5 in) long, 5–7 mm (0.2–0.3 in) wide and white or cream-coloured with red lines and spots. The edge of the labellum has short, forward-facing teeth and there are two rows of red to cream-coloured calli along its centre. Flowering occurs from June to August. [2] [3] [4]

Taxonomy and naming

Caladenia exilis subsp. vanleeuwenii was first formally described in 2001 by Stephen Hopper & Andrew Brown and the description was published in Nuytsia . [1] The specific epithet (vanleeuwenii) honours Steven van Leeuwen, an Australian research scientist who first recognised the species as distinct. [3]

Distribution and habitat

Moora spider orchid occurs between Watheroo and Wongan Hills in the Avon Wheatbelt and Jarrah Forest biogeographic regions where it grows in York gum and salmon gum forests which are wet in winter. [3] [4] [5]

Conservation

Caladenia exilis subsp. vanleeuwenii is classified as "not threatened" by the Western Australian Government Department of Parks and Wildlife. [5]

Related Research Articles

Caladenia bicalliata subsp. bicalliata, commonly known as the limestone spider orchid or dwarf limestone spider orchid, is a plant in the orchid family Orchidaceae and is native to the south-west of Western Australia and coastal areas of South Australia. It has a single erect, hairy leaf and one or two cream-coloured flowers with reddish-brown tips.

<i>Caladenia cruscula</i> Species of orchid

Caladenia cruscula, commonly known as the reclining spider orchid is a species of orchid endemic to a small area in the south-west of Western Australia. It has a single hairy leaf and a single cream-coloured flower with a long red fringe on the sides of its labellum.

<i>Caladenia denticulata <span style="font-style:normal;">subsp.</span> denticulata</i> Subspecies of orchid

Caladenia denticulata subsp. denticulata, commonly known as the yellow spider orchid, is a plant in the orchid family Orchidaceae and is endemic to the south-west of Western Australia. It has a single erect, hairy leaf and one or two yellowish flowers which have a white labellum with pale red markings.

Caladenia denticulata subsp. rubella, commonly known as the clumped spider orchid, is a plant in the orchid family Orchidaceae and is endemic to the south-west of Western Australia. It has a single erect, hairy leaf and one or two dull or pinkish red flowers with prominent dull red markings and with a white labellum with red markings.

<i>Caladenia dundasiae</i> Species of orchid

Caladenia dundasiae, commonly known as the Patricia's spider orchid and Dundas spider orchid is a species of orchid endemic to a small area in the south-west of Western Australia. It is a rare orchid with a single hairy leaf and one or two, usually red flowers with thin, stiffly-held lateral sepals and petals.

<i>Caladenia exilis <span style="font-style:normal;">subsp.</span> exilis</i> Subspecies of orchid

Caladenia exilis subsp. exilis, commonly known as the salt lake spider orchid, is a plant in the orchid family Orchidaceae and is endemic to the south-west of Western Australia. It is a relatively common spider orchid with a single erect, hairy leaf and up to three white to greenish-cream flowers with a small white, red-striped labellum.

Caladenia hiemalis, commonly known as the dwarf common spider orchid is a species of orchid endemic to the south-west of Western Australia. It has a single, hairy leaf and one or two, cream-coloured flowers with a small, red-striped labellum. It has an early flowering period and its flowering is stimulated by summer fires.

<i>Caladenia horistes</i> Species of orchid

Caladenia horistes, commonly known as the cream spider orchid is a species of orchid endemic to the south-west of Western Australia. It has a single, hairy leaf and one or two, creamy-yellow flowers which have a red-striped labellum and long, dark, thread-like tips on the sepals and petals.

<i>Caladenia longicauda <span style="font-style:normal;">subsp.</span> rigidula</i> Subspecies of orchid

Caladenia longicauda subsp. rigidula, commonly known as the rigid white spider orchid or island white spider orchid, is a plant in the orchid family Orchidaceae and is endemic to the south-west of Western Australia. It has a single hairy leaf and up to three large, mainly white flowers with relatively short lateral sepals and petals. It is similar to the reclining white spider orchid but that species has smaller, cream-coloured flowers.

<i>Caladenia pendens <span style="font-style:normal;">subsp.</span> pendens</i> Subspecies of orchid

Caladenia pendens subsp. pendens, commonly known as the pendant spider orchid, is a plant in the orchid family Orchidaceae and is endemic to the south-west of Western Australia. It has a single hairy leaf and up to three relatively large, creamy-white flowers with long drooping petals and sepals and sometimes has a sickly-sweet scent.

<i>Caladenia pendens <span style="font-style:normal;">subsp.</span> talbotii</i> Subspecies of orchid

Caladenia pendens subsp. talbotii, commonly known as Talbot's spider orchid, is a plant in the orchid family Orchidaceae and is endemic to the south-west of Western Australia. It has a single hairy leaf and one or two white, red and yellow flowers with long drooping petals and sepals and sometimes has a citrus-like scent.

Caladenia pholcoidea subsp. pholcoidea, commonly known as the Albany spider orchid, is a plant in the orchid family Orchidaceae and is endemic to the south-west of Western Australia. It has a single hairy leaf and up to four pale yellow flowers with long drooping petals and lateral sepals.

Caladenia pholcoidea subsp. augustensis, commonly known as the Augustus spider orchid, is a plant in the orchid family Orchidaceae and is endemic to the south-west of Western Australia. It is a rare orchid with a single hairy leaf and up to three mostly white flowers with long spreading petals and lateral sepals.

Caladenia remota subsp. remota, commonly known as the outback spider orchid, is a plant in the orchid family Orchidaceae and is endemic to the south-west of Western Australia. It has a single hairy leaf and one or two relatively large creamy-white to pale yellow flowers. It is relatively common in moist soil around granite outcrops, growing in more inland areas than most other spider orchids.

<i>Caladenia remota <span style="font-style:normal;">subsp.</span> parva</i> Subspecies of orchid

Caladenia remota subsp. parva, commonly known as the Perenjori spider orchid, is a plant in the orchid family Orchidaceae and is endemic to the south-west of Western Australia. It has a single hairy leaf and up to three creamy-white to pale yellow flowers. It has a more restricted and more westerly distribution than subspecies remota.

Caladenia sigmoidea, commonly known as the sigmoid spider orchid, is a species of orchid endemic to the south-west of Western Australia. It has a single erect, hairy leaf and usually only one red and cream-coloured flowers with an unusual S-shaped labellum.

<i>Caladenia uliginosa <span style="font-style:normal;">subsp.</span> uliginosa</i> Subspecies of orchid

Caladenia uliginosa subsp. uliginosa, commonly known as the dainty spider orchid, or darting spider orchid is a plant in the orchid family Orchidaceae and is endemic to the south-west of Western Australia. It has a single hairy leaf and up to four greenish-cream flowers which have a forward-projecting labellum with a dark red tip.

<i>Caladenia uliginosa <span style="font-style:normal;">subsp.</span> patulens</i> Subspecies of orchid

Caladenia uliginosa subsp. patulens, commonly known as the frail spider orchid, is a plant in the orchid family Orchidaceae and is endemic to the south-west of Western Australia. It has a single hairy leaf and up to three greenish-cream flowers which have a forward-projecting, white labellum.

<i>Caladenia exilis</i> Species of orchid

Caladenia exilis is a species of flowering plant in the orchid family Orchidaceae and is endemic to the south-west of Western Australia. It is a ground orchid with a single erect, linear leaf and up to three white to greenish-cream or dark pinkish-maroon flowers.

<i>Caladenia pendens</i> Species of orchid

Caladenia pendens is a species of flowering plant in the orchid family and is endemic to the south-west of Western Australia. It has a single erect, linear leaf and up to three cream-coloured to dark pinkish-maroon flowers with reddish-purple markings.

References

  1. 1 2 3 "Caladenia exilis subsp. vanleeuwenii". APNI. Retrieved 1 February 2017.
  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. 103. ISBN   1877069124.
  3. 1 2 3 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. 60. ISBN   9780980348149.
  4. 1 2 Hoffman, Noel; Brown, Andrew (2011). Orchids of South-West Australia (3rd ed.). Gooseberry Hill: Noel Hoffman. p. 36. ISBN   9780646562322.
  5. 1 2 "Caladenia exilis subsp. vanleeuwenii". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.