Swainsona colutoides

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Swainsona colutoides
Swainsona colutoides.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Fabales
Family: Fabaceae
Subfamily: Faboideae
Genus: Swainsona
Species:
S. colutoides
Binomial name
Swainsona colutoides
Synonyms [1]
  • Swainsona colutoidesF.Muell. var. colutoides
  • Swainsonia colutoidesF.Muell. orth. var.

Swainsona colutoides, commonly known as bladder senna or bladder vetch, [2] is a species of flowering plant in the family Fabaceae and is endemic to arid areas of Australia. It is an erect annual, shrub-like herb, with imparipinnate leaves usually with up to 13 to 17 egg-shaped leaflets with the narrower end towards the base, and racemes of 10 to 20 purple flowers.

Contents

Description

Swainsona colutoides is an annual, shrub-like herb, that typically grows to a height of 1.0–1.3 m (3 ft 3 in – 4 ft 3 in) and has glabrous stems. Its leaves are imparipinnate, mostly 150–200 mm (5.9–7.9 in) long on a short petiole with 13 to 17 egg-shaped leaflets with the narrower end towards the base, 10–13 mm (0.39–0.51 in) long and 5–10 mm (0.20–0.39 in) wide. There are stipules often more than 15 mm (0.59 in) long at the base of the petiole. The flowers are arranged in racemes of 10 to 20 on a peduncle up to 20 mm (0.79 in) long, each flower 15–18 mm (0.59–0.71 in) long on a pedicel 2–4 mm (0.079–0.157 in) long. The sepals are 5–7 mm (0.20–0.28 in) long and joined at the base to from a bell-shaped tube, the sepal lobes shorter than the tube. The petals are purple, the standard petal 11–23 mm (0.43–0.91 in) long and up to 15 mm (0.59 in) wide, the wings 9–16 mm (0.35–0.63 in) long, and the keel 14–24 mm (0.55–0.94 in) long. Flowering mainly occurs from August to December, and the fruit is a crescent-moon shaped pod 25–50 mm (0.98–1.97 in) long and 8–20 mm (0.31–0.79 in) wide with the remains of the style about 9 mm (0.35 in) long. [2] [3] [4] [5]

Taxonomy and naming

Swainsona colutoides was first formally described in 1876 by Ferdinand von Mueller in his Fragmenta Phytographiae Australiae . [6] [7] The specific epithet (colutoides) means " Colutea -like". [8]

Distribution and habitat

This species of pea grows in sandy and clayey soils in Western Australia, the Northern Territory, South Australia and New South Wales. It occurs in the Avon Wheatbelt, Coolgardie, Great Victoria Desert, Mallee and Murchison of Western Australia, the Nullarbor Plain, Great Victoria Desert, Eyre Peninsula and Murray Darling Depression bioregions of South Australia, the MacDonnell Ranges in the Northern Territory and the far south-west of New South Wales. [2] [3] [4] [5] [9]

Uses

An erect annual or biennial, its high production of larger seeds, delayed dehiscence, and low concentrations of the toxin swainsonine gives it potential for development as a forage crop. [10]

Related Research Articles

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<i>Swainsona procumbens</i> Species of plant

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<i>Bossiaea neoanglica</i> Species of legume

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<i>Swainsona maccullochiana</i> Species of plant

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<i>Swainsona canescens</i> Species of plant

Swainsona canescens, commonly known as grey swainsona, is a flowering plant in the family Fabaceae. It is a small perennial herb with pink-purple or purple, yellow and green flowers and grows in Queensland, Western Australia and South Australia.

<i>Goodia medicaginea</i> Species of legume

Goodia medicaginea, commonly known as western golden tip, is a species of flowering plant in the family Fabaceae and is endemic to southern continental Australia. It is a shrub with trifoliate leaves, the leaflets narrowly egg-shaped with the narrower end towards the base, and mostly yellow, pea-like flowers with red to purplish-black or brown markings.

Swainsona acuticarinata is a species of flowering plant in the family Fabaceae and is endemic to arid areas of central Australia. It is a prostrate perennial herb with imparipinnate leaves with 5 to 11 leaflets, and racemes of purple flowers.

Swainsona adenophylla, commonly known as violet swainson-pea or violet Darling pea, is a species of flowering plant in the family Fabaceae and is endemic to arid areas of central Australia. It is a slender, erect or spreading perennial herb with imparipinnate leaves with three to nine linear to narrowly egg-shaped leaflets, and racemes of pink or purplish flowers in racemes of ten to twenty.

<i>Swainsona beasleyana</i> Species of legume

Swainsona beasleyana is a species of flowering plant in the family Fabaceae and is endemic to inland areas of Western Australia. It is a low-lying perennial herb with imparipinnate leaves usually with 15 to 19 egg-shaped leaflets with the narrower end towards the base, and racemes of 3 to 8 pale or dark purple flowers.

Swainsona bracteata is a species of flowering plant in the family Fabaceae and is endemic to eastern Australia. It is a perennial herb with imparipinnate leaves usually with 19 to 25 narrowly egg-shaped leaflets, and racemes of about 20 white, pale pink or pale purple flowers.

<i>Swainsona burkei</i> Species of plant endemic to Australia

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<i>Swainsona burkittii</i> Species of plant endemic to Australia

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Swainsona cadellii is a species of flowering plant in the family Fabaceae and is endemic to inland New South Wales. It is a shrubby perennial with imparipinnate leaves usually with 5 to 15 mostly narrowly egg-shaped leaflets, and racemes of 15 to 20 white, pink or purple flowers.

Swainsona calcicola is a species of flowering plant in the family Fabaceae and is endemic to north-western Western Australia. It is a prostrate or ascending, low-growing perennial with many stems, imparipinnate leaves usually with 7 to 11 broadly egg-shaped leaflets with the narrower end towards the base, and racemes of usually 4 or 5 pink, purple or red flowers.

<i>Swainsona campestris</i> Species of legume

Swainsona campestris is a species of flowering plant in the family Fabaceae and is endemic to arid areas of southern Australia. It is an erect perennial herb with imparipinnate leaves with 9 to 11 linear to narrowly lance-shaped leaflets, and racemes of pink or purple flowers in racemes of 5 to 10.

<i>Ricinocarpos velutinus</i> Species of shrub

Ricinocarpos velutinus is a species of flowering plant in the family Euphorbiaceae and is endemic to the south-west of Western Australia. It is an erect, rounded, usually monoecious shrub with linear leaves, and yellow flowers with either all female or all male flowers, or one or two female flowers with up to 13 male flowers below them.

<i>Swainsona campylantha</i> Species of legume

Swainsona campylantha, commonly known as Gilgai Darling pea, is a species of flowering plant in the family Fabaceae and is endemic to inland areas of Australia. It is a low-growing perennial with imparipinnate leaves usually with up to 7 narrowly lance-shaped to narrowly elliptic leaflets, and racemes of 2 to 10 pink to purple flowers.

References

  1. 1 2 "Swainsona colutoides". Australian Plant Census. Retrieved 21 November 2023.
  2. 1 2 3 Thompson, Joy; James, Teresa A. "Swainsona colutoides". Royal Botanic Garden, Sydney. Retrieved 21 November 2023.
  3. 1 2 Thompson, Joy (1993). "A revision of the genus Swainsona (Fabaceae)". Telopea. 5 (3): 447. Retrieved 21 November 2023.
  4. 1 2 "Swainsona colutoides". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
  5. 1 2 "Swainsona colutoides". State Herbarium of South Australia. Retrieved 21 November 2023.
  6. ↑ "Swainsona colutoides". Australian Plant Name Index. Retrieved 21 November 2023.
  7. ↑ von Mueller, Ferdinand (1876). Fragmenta Phytographiae Australiae. Vol. 10. Melbourne: Victorian Government Printer. pp. 6–8. Retrieved 21 November 2023.
  8. ↑ Sharr, Francis Aubi; George, Alex (2019). Western Australian Plant Names and Their Meanings (3rd ed.). Kardinya, WA: Four Gables Press. p. 167. ISBN   9780958034180.
  9. ↑ "Swainsona colutoides". Northern Territory Government. Retrieved 21 November 2023.
  10. ↑ Bell, Lindsay W.; Bennett, Richard G.; Ryan, Megan H.; Clarke, Heather (2011). "The potential of herbaceous native Australian legumes as grain crops: A review". Renewable Agriculture and Food Systems. 26: 72–91. doi:10.1017/S1742170510000347. S2CID   84659352.
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