Swainsona leeana

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Swainsona leeana
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. leeana
Binomial name
Swainsona leeana

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.

Contents

Description

Swainsona laciniata is a prostrate annual, or possibly perennial herb, that typically grows to a height of up to 10 cm (3.9 in) with many stems. Its leaves are imparipinnate, mostly 10–30 mm (0.39–1.18 in) long with up to 3 broadly elliptic to elliptic leaflets mostly 5–10 mm (0.20–0.39 in) long and 1–3 mm (0.039–0.118 in) wide. There are stipules 3–5 mm (0.12–0.20 in) long at the base of the petiole. The flowers are arranged in racemes mostly 10–60 mm (0.39–2.36 in) long with up to 3 flowers on a peduncle less than 0.5 mm (0.020 in) wide, each flower 3–5 mm (0.12–0.20 in) long on a hairy pedicel about 1 mm (0.039 in) long. The sepals are joined at the base, forming a tube less than 1 mm (0.039 in) long, the sepal lobes about twice as long as the tube. The petals are purple or yellow, the standard petal about 4 mm (0.16 in) long and 5 mm (0.20 in) wide, the wings about 4 mm (0.16 in) long, and the keel about 5 mm (0.20 in) long and 1.5 mm (0.059 in) deep. [2] Flowering occurs in September and October, [3] and the fruit is a pod broadly elliptic pod mostly 8–10 mm (0.31–0.39 in) long and 5–7 mm (0.20–0.28 in) wide. [2]

Taxonomy and naming

Swainsona leeana was first formally described in 1985 by Joseph Zvonko Weber in the Journal of the Adelaide Botanic Gardens , from specimens collected on Mount Lyndhurst in 1973. [2] [4] [5] The specific epithet (leeana) honours Alma Theodora Lee. [6]

Distribution and habitat

This species of pea grows in stony soil or clay-loam in dry watercourses in scattered locations in the Carnarvon, Coolgardie, Gascoyne, Gibson Desert, Great Victoria Desert, Murchison, Pilbara and Yalgoo bioregions of northern Western Australia [3] and in the Flinders Ranges and Kati Thanda–Lake Eyre regions of South Australia. [7]

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 affinis</i> Species of legume

Swainsona affinis, commonly known as common poison pea, is a species of flowering plant in the family Fabaceae and is endemic to arid areas of inland Australia. It is a prostrate perennial herb with imparipinnate leaves with 7 to 25 broadly elliptic leaflets, and racemes of purple, pink, yellow or white 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 burkei</i> Species of plant endemic to Australia

Swainsona burkei is a species of flowering plant in the family Fabaceae and is endemic to northern Australia. It is a prostrate or perennial subshrub with imparipinnate leaves usually with 5 to 11 oblong to narrowly egg-shaped leaflets, and racemes of 5 to 10 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>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.

Swainsona cornuta is a species of flowering plant in the family Fabaceae and is endemic to the west of Western Australia. It is a low-lying, annual or perennial herb with imparipinnate leaves usually with about 7 elliptic leaflets and racemes of 3 to 7 purple flowers.

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 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 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 fraseri is a species of flowering plant in the family Fabaceae and is endemic to eastern Australia. It is a perennial plant with imparipinnate leaves with mostly 21 to 24 ellipitic leaflets, and racemes of 20 or more pink to purple flowers.

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 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.

References

  1. ↑ "Swainsona leena". Australian Plant Census. Retrieved 12 March 2024.
  2. 1 2 3 Thompson, Joy (1993). "A revision of the genus Swainsona (Fabaceae)". Telopea. 5 (3): 501–502. Retrieved 12 March 2024.
  3. 1 2 "Swainsona leeana". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
  4. ↑ "Swainsona leeana". Australian Plant Name Index. Retrieved 12 March 2024.
  5. ↑ Weber, Joseph Z. (1985). "A new species of Swainsona (Fabaceae)". Journal of the Adelaide Botanic Gardens. 7 (3): 301–302. Retrieved 12 March 2024.
  6. ↑ Sharr, Francis Aubi; George, Alex (2019). Western Australian Plant Names and Their Meanings (3rd ed.). Kardinya, WA: Four Gables Press. p. 237. ISBN   9780958034180.
  7. ↑ "Swainsona leeana"". State Herbarium of South Australia. Retrieved 12 March 2024.
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