Swainsona adenophylla

Last updated

Swainsona adenophylla
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. adenophylla
Binomial name
Swainsona adenophylla
Synonyms [1]
  • Swainsona microcalyx subsp. adenophylla(J.M.Black) A.T.Lee
  • Swainsona microcalyx var. adenophylla(J.M.Black) J.M.Black

Swainsona adenophylla, commonly known as violet swainson-pea or violet Darling pea, [2] is a species of flowering plant in the family Fabaceae and is endemic to arid areas of central Australia. It is a slender, erect or spreading perennial herb with imparipinnate leaves with three to nine linear to narrowly egg-shaped leaflets, and racemes of pink or purplish flowers in racemes of ten to twenty.

Contents

Description

Swainsona adenophylla is a slender, erect or spreading perennial herb, that typically grows to a height of up to 30 cm (12 in) with densely softly-hairy stems at the base. The leaves are imparipinnate, 30–50 mm (1.2–2.0 in) long with 3 to 9 linear to egg-shaped leaflets, the side leaflets 15–25 mm (0.59–0.98 in) long and mostly 0.5–2 mm (0.020–0.079 in) wide with stipules up to about 4 mm (0.16 in) long at the base of the petiole. The leaflets have a distinctive spherical, yellow gland at the tip. The flowers are pink or purplish, arranged in racemes of 10 to 20, each flower 6–9 mm (0.24–0.35 in) long. The sepals are softly-hairy and joined at the base, forming a tube with the lobes shorter than the sepal tube. The standard petal is 7–9 mm (0.28–0.35 in) long, 6–8 mm (0.24–0.31 in) wide, and the keel about 7 mm (0.28 in) long. Flowering usually occurs from June to September, and the fruit is a narrowly oblong pod 10–20 mm (0.39–0.79 in) long and 3–4 mm (0.12–0.16 in) wide. [2] [3] [4]

Taxonomy and naming

Swainsona adenophylla was first formally described in 1926 by John McConnell Black in the Transactions and prodeedings of the Royal Society of South Australia . [5]

Distribution and habitat

Violet swainson-pea grows on sandy or stony flats, especially near the edge of lakes, and is widespread in central South Australia. It is also known from single collections in Kinchega National Park in New South Wales, and from Barmah State Forest in Victoria. [2] [4] [6]

Conservation status

Swainsona adenophylla is listed as "endangered" in New South Wales under the Biodiversity Conservation Act 2016 and as "critically endangered" in Victoria under the Flora and Fauna Guarantee Act 1988 .

Related Research Articles

<i>Swainsona</i> Genus of legumes

Swainsona is a genus of about 85 species of flowering plants in the family Fabaceae, and is endemic to Australia. Plants in this genus are herbs or subshrubs with imparipinnate leaves and usually purple flowers similar to others in the family.

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

Swainsona galegifolia commonly known as smooth Darling pea, is a species of flowering plant in the family Fabaceae and is endemic to Australia. It is a small shrub with greyish-green leaves and flowers in white, red, pink, purple, yellow or orange.

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

Swainsona greyana, commonly known as Darling Pea or Hairy Darling Pea, is a shrubby perennial in the family Fabaceae that is native to Australia. It grows to 1.5 metres high, has hairy stems and pinnate leaves that are 10 to 15 cm long. Racemes of 12 to 20 pea flowers are produced from September to March in the species' native range. These have white, pink or purple corollas. The pods that follow are elliptic in shape and 30 to 50 mm long.

<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>Goodia lotifolia</i> Species of legume

Goodia lotifolia, commonly known as golden tip or clover tree, is a species of flowering plant in the family Fabaceae and is endemic to eastern Australia. It is a sometimes tall shrub with trifoliate leaves, the leaflets narrowly egg-shaped with the narrower end towards the base, and bright yellow, pea-like flowers with red or brown markings.

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

Swainsona procumbens is a plant in the pea family (Fabaceae) native to Australia and found in New South Wales, Victoria, Queensland and South Australia.

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

Swainsona sejuncta is a species of flowering plant in the family Fabaceae. It has pea-shaped flowers in a variety of colours, pink, cream, orange and mauve from spring to summer and is endemic to Queensland.

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

Swainsona monticola, commonly known as notched Swainson-pea, is a flowering plant in the pea family Fabaceae and grows in New South Wales and the Australian Capital Territory. It is an upright or sprawling perennial with fern-like leaves and purple pea flowers.

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

Swainsona maccullochiana, commonly known as Ashburton pea, is a species of flowering plant in the family Fabaceae. It is an upright annual with purple-reddish, pink or bluish pea-like flowers from spring to summer and is endemic to Western Australia.

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

Swainsona sericea commonly known as silky Swainson-pea or silky pea, is a flowering plant in the family Fabaceae. It is a small perennial with greyish-green leaves, purple flowers and grows in New South Wales, Victoria and South Australia.

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

Swainsona phacoides commonly known as dwarf Swainson-pea or lilac Darling pea, is a flowering plant in the family Fabaceae. It is a small perennial herb, usually purple flowers and grows in all mainland states of Australia and the Northern Territory.

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


Swainsona swainsonioides commonly known as downy Swainson-pea or downy Darling pea,is a flowering plant in the family Fabaceae. It is a small perennial herb with purple flowers and grows in eastern states of Australia.

Goodia macrocarpa is a species of flowering plant in the family Fabaceae and is endemic to eastern Australia. It is a shrub with trifoliate leaves, the leaflets narrowly elliptic to elliptic, and bright yellow and red pea-like flowers.

<i>Goodia medicaginea</i> Species of legume

Goodia medicaginea, commonly known as western golden tip, is a species of flowering plant in the family Fabaceae and is endemic to southern continental Australia. It is a shrub with trifoliate leaves, the leaflets narrowly egg-shaped with the narrower end towards the base, and mostly yellow, pea-like flowers with red to purplish-black or brown markings.

Swainsona acuticarinata is a species of flowering plant in the family Fabaceae and is endemic to arid areas of central Australia. It is a prostrate perennial herb with imparipinnate leaves with 5 to 11 leaflets, and racemes of purple flowers.

Goodia stenocarpa is a species of flowering plant in the family Fabaceae and is endemic to inland Western Australia. It is a shrub with trifoliate leaves, the leaflets egg-shaped with the narrower end towards the base, and yellow or orange-yellow and red and purplish-brown, pea-like 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 beasleyana</i> Species of legume

Swainsona beasleyana is a species of flowering plant in the family Fabaceae and is endemic to inland areas of Western Australia. It is a low-lying perennial herb with imparipinnate leaves usually with 15 to 19 egg-shaped leaflets with the narrower end towards the base, and racemes of 3 to 8 pale or dark 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 bracteata is a species of flowering plant in the family Fabaceae and is endemic to eastern Australia. It is a perennial herb with imparipinnate leaves usually with 19 to 25 narrowly egg-shaped leaflets, and racemes of about 20 white, pale pink or pale purple flowers.

References

  1. 1 2 "Swainsona adenophylla". Australian Plant Census. Retrieved 16 September 2022.
  2. 1 2 3 Thompson, Joy; James, Teresa A. "Swainsona adenophylla". Royal Botanic Garden Sydney. Retrieved 16 September 2023.
  3. Black, John M. (1926). "Additions to the Flora of South Australia. No. 24". Transactions and Proceedings of the Royal Society of South Australia. 50: 284. Retrieved 16 September 2023.
  4. 1 2 Jeanes, Jeff A.; Stajsic, Val. "Swainsona adenophylla". Royal Botanic Gardens Victoria. Retrieved 16 September 2023.
  5. "Swainsona adenophylla". Australian Plant Name Index. Retrieved 16 September 2023.
  6. "Violet Swainson-Pea - profile". New South Wales Government Office of Environment and Heritage. Retrieved 16 September 2023.