Swainsona villosa

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Swainsona villosa
Swainsona villosa habit.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. villosa
Binomial name
Swainsona villosa

Swainsona villosa is a species of flowering plant in the family Fabaceae and is endemic to central Australia. It is a prostrate or ascending plant, with imparipinnate leaves with 7 to 15 egg-shaped leaflets with the narrower end towards the base, and racemes of 2 to 15 usually purple, sometimes pink or white flowers.

Contents

Description

Swainsona villosa is a prostrate or ascending plant up to about 20 cm (7.9 in) high with many stems, often with their bases below the surface of the soil. The leaves are imparipinnate, mostly 30–80 mm (1.2–3.1 in) long with 7 to 15 egg-shaped leaflets with the narrower end towards the base, the side leaflets 5–15 mm (0.20–0.59 in) long and 2–6 mm (0.079–0.236 in) wide with broad, stipules 5–15 mm (0.20–0.59 in) long, often with a long tapering tip, at the base of the petioles. The flowers are usually purple, sometimes pink or white, arranged in racemes of 2 to 15, on a peduncle about 1–2 mm (0.039–0.079 in) wide, each flower 7–10 mm (0.28–0.39 in) long on a dark, hairy pedicel 1–3 mm (0.039–0.118 in) long. The sepals are joined at the base to form a tube about 1.5 mm (0.059 in) long, with teeth often twice as long as the tube. The standard petal is 8–11 mm (0.31–0.43 in) long and 9–15 mm (0.35–0.59 in) wide, the wings 9–11 mm (0.35–0.43 in) long and the keel 8–11 mm (0.31–0.43 in) long and 3.0–3.5 mm (0.12–0.14 in) deep. Flowering mainly occurs from July to August, and the fruit is an oblong to almost spherical pod 8–15 mm (0.31–0.59 in) long and 9–10 mm (0.35–0.39 in) wide with the remains of the style 5–7 mm (0.20–0.28 in) long. [2] [3] [4]

Taxonomy and naming

Swainsona villosa was first formally described in 1924 by John McConnell Black in the Flora of South Australia from specimens collected in the Musgrave Ranges. [5] The specific epithet (villosa) means "with long, soft hairs". [6]

Distribution

This Swainson-pea grows on sandy or loamy soils on stone and sandplains in the north of South Australia, in the Central Ranges, Finke, Great Sandy Desert, Great Victoria Desert, MacDonnell Ranges, Stony Plains of southern Northern Territory, and the Central Ranges, Gascoyne and Great Sandy Desert bioregions of Western Australia. [2] [3] [4]

Related Research Articles

Swainsona cyclocarpa is a species of flowering plant in the family Fabaceae and is endemic to northern inland areas of Australia. It is a prostrate or low-growing annual with imparipinnate leaves usually with up to 7 usually egg-shaped leaflets with the narrower end towards the base, and racemes of 4 to 16 purple flowers.

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

Swainsona elegans is a species of flowering plant in the family Fabaceae and is endemic to Western Australia. It is a prostrate or ascending annual with imparipinnate leaves, usually with 7 to 15 egg-shaped or elliptic leaflets, and racemes of up to 15 blue or reddish-purple flowers.

Swainsona eremaea is a species of flowering plant in the family Fabaceae and is endemic to South Australia. It is a low-growing, spreading, probably perennial plant with imparipinnate leaves with 5 to 11 linear, oblong to broadly wedge-shaped leaflets, and racemes of bright red to brown or yellow flowers in racemes of 5 to 20.

Swainsona fuscoviridis is a species of flowering plant in the family Fabaceae and is endemic to South Australia. It is a perennial plant with many stems and imparipinnate leaves with mostly 7 or 9 ellipitic, linear or egg-shaped or lance-shaped leaflets, and racemes of 12 to 20 purple flowers.

Swainsona gracilis is a species of flowering plant in the family Fabaceae and is endemic to the south-west of Western Australia. It is a prostrate or ascending perennial herb with imparipinnate leaves with up to 15 wedge-shaped or narrowly oblong leaflets, and racemes of up to 4 purple or blue flowers.

Swainsona halophila is a species of flowering plant in the family Fabaceae and is endemic to inland areas of Western Australia. It is usually a prostrate annual herb with imparipinnate leaves with 9 to 13 egg-shaped to broadly wedge-shaped leaflets, and racemes of 2 to 9 purple flowers.

Swainsona incei is a species of flowering plant in the family Fabaceae and is endemic to inland Western Australia. It is an erect or ascending annual, sometimes perennial herb with imparipinnate leaves with 5 to 9 lance-shaped to elliptic leaflets, and racemes of 2 to 30 purple flowers.

Swainsona kingii is a species of flowering plant in the family Fabaceae and is native to Western Australia and South Australia. It is a prostrate or ascending annual or perennial herb, with imparipinnate leaves with usually 5 egg-shaped leaflets with the narrower end towards the base, and racemes of 1 to 3 pink to purple flowers.

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

Swainsona laciniata is a species of flowering plant in the family Fabaceae and is endemic to north-western Australia. It is a prostrate or ascending perennial herb with imparipinnate leaves with 7 to 13 broadly elliptic to broadly egg-shaped leaflets, and racemes of 3 to 8 purple flowers.

Swainsona microcalyx, commonly known as wild violet, is a species of flowering plant in the family Fabaceae and is endemic to southern mainland Australia. It is a prostrate or low-growing perennial herb, with imparipinnate leaves with 5 to 9 broadly egg-shaped to wedge-shaped leaflets and racemes of 5 to 15 purple flowers.

Swainsona minutiflora is a species of flowering plant in the family Fabaceae and is endemic to South Australia. It is a prostrate, herbaceous plant with imparipinnate leaves with 5 to 9 oblong or narrowly oblong leaflets with the narrower end towards the base, and racemes of 3 to 7 yellow or pinkish flowers.

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

Swainsona oligophylla is a species of flowering plant in the family Fabaceae and is endemic to central Australia. It is usually a prostrate perennial plant with imparipinnate leaves with 5 to 7 egg-shaped leaflets, the narrower end towards the base, and racemes of 3 to 7 purple flowers.

Swainsona oliveri is a species of flowering plant in the family Fabaceae and is endemic to south-western Australia. It is a slender, prostrate to ascending annual or perennial herb with imparipinnate leaves with 9 to 13 narrowly egg-shaped leaflets, the narrower end towards the base, and racemes of up to 4 cream-coloured to yellow flowers, sometimes with a pink tinge.

Swainsona paradoxa is a species of flowering plant in the family Fabaceae and is endemic to inland Western Australia. It is a prostrate or ascending perennial or annual herb with imparipinnate leaves with up to 9 mostly broadly egg-shaped leaflets and racemes of 2 to 20 purple, pink or white flowers.

Swainsona paucifoliolata is a prostrate, spreading or scrambling perennial herb in the family Fabaceae and is endemic to inland areas in the north of Western Australia. It has 3 to 7 usually narrowly lance-shaped leaflets, and racemes of 3 to 16 purple flowers.

Swainsona pedunculata is a species of flowering plant in the family Fabaceae and is endemic to inland areas of Western Australia. It is a small, ascending annual herb with imparipinnate leaves with 3 to 7 narrowly elliptic or lance-shaped leaflets, and racemes of 2 to 3 purple flowers.

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

Swainsona pterostylis is a species of flowering plant in the family Fabaceae and is endemic to northern parts of Western Australia. It is a low-growing or prostrate perennial herb, with imparipinnate leaves with mostly 11 to 19 broadly elliptic leaflets, and racemes of 5 to more than 30 purple or violet flowers.

Swainsona rotunda is a species of flowering plant in the family Fabaceae and is endemic to inland areas of northern Western Australia. It is a prostrate herb with imparipinnate leaves with about 7 narrowly lance-shaped leaflets, and racemes of up to 4 lilac-coloured flowers.

Swainsona tanamiensis is a species of flowering plant in the family Fabaceae and is endemic to north-western Australia. It is a prostrate or erect perennial plant with imparipinnate leaves with 5 to 13 broadly egg-shaped to elliptic, or almost round leaflets, and racemes of up to 8 purple flowers.

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

Swainsona tenuis is a species of flowering plant in the family Fabaceae and is endemic to western continental Australia. It is a prostrate perennial herb with many stems, imparipinnate leaves with 5 to 9 egg-shaped leaflets with the narrower end towards the base, to linear or elliptic leaflets, and racemes of up to 7 purple flowers.

References

  1. ↑ "Swainsona reticulata". Australian Plant Census. Retrieved 21 June 2024.
  2. 1 2 Thonpson, Joy (1993). "A revision of the genus Swainsona (Fabaceae)". Telopea. 5 (3): 477–478. Retrieved 21 June 2024.
  3. 1 2 "Swainsona villosa". State Herbarium of South Australia. Retrieved 21 June 2024.
  4. 1 2 "Swainsona villosa". Northern Territory Government. Retrieved 21 June 2024.
  5. ↑ "Swainsona villosa". Australian Plant Name Index. Retrieved 21 June 2024.
  6. ↑ Sharr, Francis Aubi; George, Alex (2019). Western Australian Plant Names and Their Meanings (3rd ed.). Kardinya, WA: Four Gables Press. p. 336. ISBN   9780958034180.
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