Biology:Swainsona phacoides
| Dwarf Swainson-pea | |
|---|---|
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Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Fabales |
| Family: | Fabaceae |
| Subfamily: | Faboideae |
| Genus: | Swainsona |
| Species: | S. phacoides
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| Binomial name | |
| Swainsona phacoides Benth.[1]
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| Synonyms[1] | |
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List
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Swainsona phacoides commonly known as dwarf Swainson-pea or lilac Darling pea,[2] 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.
Description
Swainsona phacoides is a small, ascending perennial herb to about 30 cm (12 in) high with stems more or less densely covered in soft, short hairs. The 5-13 leaves are 5–10 cm (2.0–3.9 in) long, narrow to broadly elliptic-shaped, leaflets up to 30 mm (1.2 in) long, 1–5 mm (0.039–0.197 in) wide, apex pointed, rounded or notched, upper and lower surfaces thickly or sparsely covered in soft, short hairs and stipules about 5 mm (0.20 in) long. The flowers are borne in racemes of 1-10, usually 10–15 mm (0.39–0.59 in) long, corolla light to dark reddish purple, keel blunt and rounded, longer than the wings, standard petal usually 7–14 mm (0.28–0.55 in) long, 7–14 mm (0.28–0.55 in) wide, broadly egg-shaped to almost orb-shaped and tapering at the base. Flowering occurs from August to October and the fruit is an oblong-elliptic shaped pod usually 15–35 mm (0.59–1.38 in) long and covered in soft, short hairs.[2][3]
Taxonomy and naming
Swainsona phacoides was first formally described in 1848 by George Bentham and the description was published in Thomas Mitchell's Journal of an Expedition into the Interior of Tropical Australia.[4][5] The specific epithet (phacoides) refers to a similarity to the genus Phaca, now known as Astragalus.[6]
Distribution and habitat
Dwarf Swainson-pea grows in sandy, red loam and rocky soils in all mainland states of Australia and the Northern Territory.[2][7]
References
- ↑ 1.0 1.1 "Swainsona phacoides". Australian Plant Census. https://biodiversity.org.au/nsl/services/apc-format/display/95167.
- ↑ 2.0 2.1 2.2 Thompson, Joy; James, T.A. "Swainsona phacoides". Royal Botanic Gardens Sydney. https://plantnet.rbgsyd.nsw.gov.au/cgi-bin/NSWfl.pl?page=nswfl&lvl=sp&name=Swainsona~phacoides.
- ↑ "Swainsona phacoides". Royal Botanic Gardens Victoria. https://vicflora.rbg.vic.gov.au/flora/taxon/f967d3ae-2e58-4928-89a1-333d137acbf4.
- ↑ "Swainsona phacoides". Australian Plant Name Index. https://biodiversity.org.au/nsl/services/rest/instance/apni/518946.
- ↑ Mitchell, Thomas (1848). Journal of an Expedition into the Interior of Tropical Australia. London: Longman, Brown, Green, and Longmans. p. 363. https://archive.org/details/b29320471/page/362/mode/2up?q=Swainsona+phacoides.
- ↑ George, A.S; Sharr, F.A (2021). Western Australian Plant Names and their meanings (4th ed.). Kardinya: Four Gables. p. 283. ISBN 9780958034197.
- ↑ Paczkowska, Grazyna. "Swainsona phacoides". Department of Biodiversity, Conservation and Attractions. https://florabase.dpaw.wa.gov.au/browse/profile/4240.
Wikidata ☰ Q15482916 entry
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