Swainsona laciniata

Last updated

Swainsona laciniata
Swainsona laciniata.jpg
Near Nanutarra
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. laciniata
Binomial name
Swainsona laciniata

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.

Contents

Description

Swainsona laciniata is a prostrate or ascending perennial herb that typically grows to a height of up to 15 cm (5.9 in) with many stems 1–2 mm (0.039–0.079 in) in diameter. Its leaves are imparipinnate, 10–70 mm (0.39–2.76 in) long with 7 to 13 broadly elliptic to broadly egg-shaped leaflets 2–9 mm (0.079–0.354 in) long and 2–4 mm (0.079–0.157 in) wide. There is a stipule up to about 10 mm (0.39 in) long at the base of the petiole. The flowers are arranged in racemes mostly 20–80 mm (0.79–3.15 in) long with 3 to 8 flowers on a peduncle 0.5–1 mm (0.020–0.039 in) wide, each flower 5–8 mm (0.20–0.31 in) long on a pedicel 1–2 mm (0.039–0.079 in) long. The sepals are joined at the base, forming a tube about 1.5–2 mm (0.059–0.079 in) long, the sepal lobes about the same length as the tube. The petals are purple, the standard petal 6–8 mm (0.24–0.31 in) long, the wings 4–6 mm (0.16–0.24 in) long, and the keel 3–7 mm (0.12–0.28 in) long and 3–4 mm (0.12–0.16 in) wide. Flowering occurs from July to September, and the fruit is a pod mostly 10–17 mm (0.39–0.67 in) long and 2.5–4 mm (0.098–0.157 in) wide with the remains of the style about 3 mm (0.12 in) long. [2] [3]

Taxonomy and naming

Swainsona laciniata was first formally described in 1948 by Alma Theodora Lee in Contributions from the New South Wales National Herbarium , from specimens collected by Charles Gardner in 1927. [4] The specific epithet (laciniata) means "laciniate", referring to the stipules. [5]

Distribution and habitat

This species of pea grows in silty, saline flats in the Central Ranges, Dampierland, Gascoyne, Little Sandy Desert and Murchison bioregions of Western Australia and the Central Ranges, Gascoyne and Great Sandy Desert of the Northern Territory. [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.

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.

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.

Swainsona decurrens is a species of flowering plant in the family Fabaceae and is endemic to northern inland areas of Australia. It is an erect annual with imparipinnate leaves usually with 15 to 19 narrowly elliptical leaflets and racemes of 20 to 30 red or 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.

Swainsona disjuncta is a species of flowering plant in the family Fabaceae and is endemic to widely separated areas of central Australia. It is a prostrate perennial herb with imparipinnate leaves with 3 to 9 egg-shaped leaflets, and racemes of purple, pink or red flowers in racemes of 3 to 15.

<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 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 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.

References

  1. ↑ "Swainsona laciniata". Australian Plant Census. Retrieved 4 March 2024.
  2. 1 2 Thompson, Joy (1993). "A revision of the genus Swainsona (Fabaceae)". Telopea. 5 (3): 497–498. Retrieved 4 March 2024.
  3. 1 2 "Swainsona laciniata". FloraBase . Western Australian Government Department of Biodiversity, Conservation and Attractions.
  4. ↑ "Swainsona laciniata". Australian Plant Name Index. Retrieved 4 March 2024.
  5. ↑ Sharr, Francis Aubi; George, Alex (2019). Western Australian Plant Names and Their Meanings (3rd ed.). Kardinya, WA: Four Gables Press. p. 190. ISBN   9780958034180.
  6. ↑ "Swainsona laciniata". Northern Territory Government. Retrieved 4 March 2024.
This page is based on this Wikipedia article
Text is available under the CC BY-SA 4.0 license; additional terms may apply.
Images, videos and audio are available under their respective licenses.