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Swainsona oroboides F.Muell. ex Benth.
Family Fabaceae
Subfamily Faboideae
Common name: Kneed Darling Pea

Swainsona oroboides F.Muell. ex Benth. APNI*

Description: Prostrate or ascending perennial to 15 cm high; stems sparsely to densely pubescent with usually straight and ± appressed or occasionally raised and twisted, basifixed or sub-basifixed hairs.

Leaves mostly 2–7 cm long; leaflets 3–7, narrow-elliptic or narrow-lanceolate, lateral leaflets mostly 10–25 mm long, 2–5 mm wide, apex acute, both surfaces pubescent or sometimes upper surface glabrous; stipules mostly 3–10 mm long.

Racemes mostly 3–16-flowered; flowers c. 6–9 mm long. Calyx pubescent, teeth longer than tube. Corolla purple; keel apex obtuse with a slight twist. Style ± twisted, tip geniculate.

Pod ± oblong, c. 10 mm long, pubescent; style c. 3–4 mm long; stipe c. 1 mm long.

Distribution and occurrence: in red sand or loam on open plains and in eucalypt and Mulga woodland, often in areas with subsoil moisture, such as floodplains.
NSW subdivisions: NT, NWS, CWS, NWP, SWP, NFWP
Other Australian states: Qld W.A. S.A. N.T.
AVH map***

Text by J. Thompson & T. A. James
Taxon concept: Flora of NSW 2 (1991)

APNI* Provides a link to the Australian Plant Name Index (hosted by the Australian National Botanic Gardens) for comprehensive bibliographic data
***The AVH map option provides a detailed interactive Australia wide distribution map drawn from collections held by all major Australian herbaria participating in the Australian Virtual Herbarium project.
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