Swainsona laciniata

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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 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 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.

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.

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 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.

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 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 reticulata, commonly known as kneed Swainson-pea, is a species of flowering plant in the family Fabaceae and is endemic to south-eastern mainland Australia. It is a prostrate perennial herb, with imparipinnate leaves with 5 to 15 egg-shaped, elliptic or very narrowly linear leaflets, and racemes of 3 to 7 purple flowers.

Swainsona rostellata is a species of flowering plant in the family Fabaceae and is endemic to inland areas of Western Australia. It is a prostrate perennial herb with imparipinnate leaves with 7 to 13 wedge-shaped leaflets, and racemes of usually up to 3 purple 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.

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

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.

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.
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