Calectasia palustris

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Calectasia palustris
Status DECF P2.svg
Priority Two — Poorly Known Taxa (DEC)
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Clade: Commelinids
Order: Arecales
Family: Dasypogonaceae
Genus: Calectasia
Species:
C. palustris
Binomial name
Calectasia palustris
R.L.Barrett & K.W.Dixon

Calectasia palustris, commonly known as a blue tinsel lily or swamp tinsel lily is a plant in the family Dasypogonaceae growing as a perennial, tufted herb with stilt roots. It is an uncommon species, endemic and restricted to a few areas in the south-west of Western Australia. It is similar to the other species of Calectasia and has only been recognised as a separate species since a review of the genus in 2001.

Contents

Description

Calectasia palustris is an undershrub with stilt roots 40110 mm long but without a rhizome. It grows to a height of about 70 cm with many short side branches. Each leaf blade is 723 x 0.40.7 mm tapering to a short, sharp point on the end. The base of the petals (strictly tepals) form a tube 9.910.1 mm long, while the outer parts spread outwards to form a blue, papery star-like pattern fading to red with age. In the centre of the star are six yellow stamens forming a tube which does not turn orange-red with age. The thin style extends beyond the stamens. It is similar to the more common and widespread C. grandiflora except that it has stilt roots and no rhizome. It is also similar to C. obtusa except that there is a sharp point on the leaf tips, also possessed by most other members of the genus. Flowers appear from July to October. [1]

Taxonomy and naming

Calectasia palustris is one of eleven species in the genus Calectasia. It was described as a new species in 2001 by K.W. Dixon and R.L. Barrett from a specimen collected south-west of Badgingarra. [2] The specific epithet (palustris) is derived from the Latin palustria, "swampy", referring to the unusual habitat preference for this species. [1] [3]

Distribution and habitat

This species of tinsel lily is uncommon and found in only two, separate areas of the south-west of Western Australia 70 kilometres apart between Cervantes and Coorow. These are in the Geraldton Sandplains and Swan Coastal Plain biogeographic regions. [4] It grows in seasonally inundated swamp and in grey sand. [1]

Conservation status

Calectasia palustris is classified as "Priority Two" by the Western Australian government department of parks and wildlife [4] meaning that it is poorly known and known from only one or a few locations. [5]

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<i>Calectasia cyanea</i> Species of plant

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Calectasia browneana, commonly known as blue tinsel lily, is a plant in the family Dasypogonaceae growing as a spreading, perennial, tufted herb. It is an uncommon species, endemic and restricted to a few areas in the south-west of Western Australia. It is similar to the other species of Calectasia and has only been recognised as a separate species since a review of the genus in 2001. It is distinguished from the others mainly by the hairiness of its leaves and lack of a rhizome.

<i>Calectasia gracilis</i> species of plant

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<i>Calectasia hispida</i> species of plant

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Calectasia pignattiana, commonly known as the stilted tinsel lily or Pignatti's star of Bethlehem, is a plant in the family Dasypogonaceae growing as a perennial herb and is endemic to the south–west of Western Australia. It is only known from ten locations, four of which are on road verges. The species is classified as vulnerable.

Calectasia obtusa, commonly known as a blue tinsel lily or blunt-leaved tinsel lily is a plant in the family Dasypogonaceae growing as an erect, small shrub with stems to 50 cm. It is endemic to the south-west of Western Australia, widespread in most of its range but only known from nine populations.

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Prasophyllum drummondii, commonly known as the swamp leek orchid, is a species of orchid endemic to the south-west of Western Australia. It is a late-flowering species with a single tubular leaf and up to thirty brownish-orange or pale yellow flowers and often grows in standing water.

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References

  1. 1 2 3 Barrett, Russell L.; Dixon, Kingsley W. (8 January 2001). "A revision of the genus Calectasia (Calectasiaceae) with eight new species described from south-west Western Australia". Nuytsia. 13 (3): 442. Retrieved 10 October 2020.
  2. "Calectasia palustris". APNI. Retrieved 8 August 2015.
  3. Archibald William Smith A Gardener's Handbook of Plant Names: Their Meanings and Origins , p. 258, at Google Books
  4. 1 2 "Calectasia palustris". FloraBase . Western Australian Government Department of Parks and Wildlife.
  5. "Conservation codes for Western Australian Flora and Fauna" (PDF). Government of Western Australia Department of Parks and Wildlife. Retrieved 28 October 2019.