Swainsona microcalyx

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Swainsona microcalyx
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. microcalyx
Binomial name
Swainsona microcalyx
Synonyms
  • Swainsona microcalyxJ.M.Black subsp. microcalyx
  • Swainsona microcalyxJ.M.Black var. microcalyx

Swainsona microcalyx, commonly known as wild violet, [2] 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.

Contents

Description

Swainsona microcalyx is a perennial herb, low-lying at first, then with ascending stems up to 10–30 cm (3.9–11.8 in) long and hairy. The leaves are imparipinnate, mostly 30–90 mm (1.2–3.5 in) long with 5 to 9 broadly egg-shaped leaflets with the narrower end towards the base, or wedge-shaped, the lower leaflets mostly 3–15 mm (0.12–0.59 in) long and 1–4 mm (0.039–0.157 in) wide with stipules 1–5 mm (0.039–0.197 in) long at the base of the petioles. The flowers are purple, arranged in racemes of 5 to 15, on a peduncle 0.5–2 mm (0.020–0.079 in) wide, each flower 5–8 mm (0.20–0.31 in) long on a pedicel 1–3 mm (0.039–0.118 in) long. The sepals are joined at the base to form a tube 1.5–2.0 mm (0.059–0.079 in) long, with teeth shorter than the tube. The standard petal is 6–8 mm (0.24–0.31 in) long and 5–8 mm (0.20–0.31 in) wide, the wings 6–8 mm (0.24–0.31 in) long and the keel 6–8 mm (0.24–0.31 in) long and 2.0–2.5 mm (0.079–0.098 in) broad. The fruit is a narrowly egg-shaped to elliptic pod about 20 mm (0.79 in) long and 3–4 mm (0.12–0.16 in) wide with the remains of the style about 4 mm (0.16 in) long. [2] [3]

Taxonomy and naming

Swainsona microcalyx was first formally described in 1924 by John McConnell Black in the Flora of South Australia. [4] The specific epithet (microcalyx) means "a cup" referring to the shape of the sepal tube. [5]

Distribution

This species of pea is mostly found north of the Eyre Peninsula in South Australia, with an outlier in inland Western Australia. [2] [3] [6]

Related Research Articles

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

Swainsona behriana, commonly known as Behr's swainsona, is a species of flowering plant in the family Fabaceae and is endemic to south-eastern continental Australia. It is a prostrate or low-growing perennial herb with imparipinnate leaves usually with 9 to 13 narrowly elliptic to egg-shaped leaflets with the narrower end towards the base, and racemes of 2 to 7 purple flowers.

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

Swainsona brachycarpa, commonly known as slender swainson-pea, is a species of flowering plant in the family Fabaceae and is endemic to eastern Australia. It is a prostrate or ascending perennial herb with imparipinnate leaves usually with 9 to 13 egg-shaped to narrowly elliptic or egg-shaped leaflets, and racemes of up to 12 white, purple or dark 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.

Swainsona dictyocarpa is a species of flowering plant in the family Fabaceae and is endemic to central areas of South Australia. It is a small erect perennial herb with imparipinnate leaves with 3 to 7 elliptic leaflets, and racemes of purple flowers in racemes of 2 to 6.

<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 elegantoides is a species of flowering plant in the family Fabaceae and is endemic to north-western Western Australia. It is an erect, probably annual plant with imparipinnate leaves, with about 11 narrowly egg-shaped leaflets, and racemes of 15 to 25 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 extrajacens is a species of flowering plant in the family Fabaceae and is endemic to central Australia. It is an erect, annual plant with imparipinnate leaves with 9 to 21 linear, egg-shaped leaflets, and racemes of purple flowers in racemes of 5 to 10.

Swainsona fissimontana is a species of flowering plant in the family Fabaceae and is endemic to inland areas of southern continental Australia. It is a compact, erect or upright perennial herb with imparipinnate leaves with 7 to 13 narrowly elliptic to elliptic leaflets, and racemes of pink to dark purplish flowers in racemes of 3 to 11.

Swainsona forrestii is a species of flowering plant in the family Fabaceae and is endemic to the central northern Western Australia. It is an erect or spreading, single-stemmed annual herb, with imparipinnate leaves with about 13 to 17 narrowly egg-shaped or narrowly ellipitic leaflets, and racemes of dark brownish red to purple or pink flowers in racemes of 30 or more.

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 katjarra, commonly known as Birriliburu swainsona, is a species of flowering plant in the family Fabaceae and is endemic to inland Western Australia. It is an erect annual herb with imparipinnate leaves with 4 to 6 lance-shaped to egg-shaped to elliptical leaflets, and racemes of 15 to 25 magenta flowers.

Swainsona kingii is a species of flowering plant in the family Fabaceae and is endemic to the Western 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 leeana is a species of flowering plant in the family Fabaceae and is endemic to the south-west of Australia. It is a small prostrate perennial, possible perennial with imparipinnate leaves with 5 to 7 broadly egg-shaped or elliptic leaflets, and racemes of up to 3 purple or yellow flowers.

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

Swainsona microphylla, commonly known as small-leaf swainson-pea, small-leaf swainsona, or poison swainson-pea is a species of flowering plant in the family Fabaceae and is endemic to mainland Australia. It is a prostrate or low-growing, sometimes erect perennial herb, with imparipinnate leaves with mostly 21 to 41 broadly wedge-shaped to round leaflets and racemes of 5 to 10 white, pink or purple flowers.

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

Swainsona murrayana, commonly known as slender Darling-pea or slender Darling pea, is a species of flowering plant in the family Fabaceae and is endemic to south-eastern mainland Australia. It is a prostrate, low-growing or erect perennial herb, with imparipinnate leaves with 3 to 11 linear to elliptic leaflets and racemes of 3 to 11 pink or purple flowers.

References

  1. ↑ "Swainsona microcalyx". Australian Plant Census. Retrieved 4 April 2024.
  2. 1 2 3 "Swainsona microcalyx". State Herbarium of South Australia. Retrieved 4 April 2024.
  3. 1 2 Thonpson, Joy (1993). "A revision of the genus Swainsona (Fabaceae)". Telopea. 5 (3): 550–551. Retrieved 4 April 2024.
  4. ↑ "Swainsona microcalyx". Australian Plant Name Index. Retrieved 4 April 2024.
  5. ↑ Sharr, Francis Aubi; George, Alex (2019). Western Australian Plant Names and Their Meanings (3rd ed.). Kardinya, WA: Four Gables Press. p. 252. ISBN   9780958034180.
  6. ↑ "Swainsona microcalyx". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
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