Swainsona
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Swainsona
''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. Description Plants in the genus ''Swainsona'' are prostrate to erect annual or perennial herbs or subshrubs, often with many stems at the base. The leaves are usually imparipinnate ( pinnate, with a terminal leaflet) with a few to many leaflets, with stipules at the base of the petiole. A few to many flowers are borne in a raceme in leaf axils on an erect peduncle with bracts at the base, and small bracteoles at the base of the sepals. The sepals are joined at the base to form a bell-shaped tube with 5 equal lobes, or the upper 2 lobes shorter. The petals are mostly purple, sometimes white, pink, yellow orange or red. The standard petal is kidney-shaped to more or less round, usually longer than the wings and often lon ...
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Swainsona Affinis
''Swainsona'' is a large genus of flowering plants native to Australasia. There are 85 species, all but one of which are endemic to Australia. A member of the family Fabaceae (legumes), it is most closely related to the New Zealand genera ''Montigena'' (scree pea), ''Clianthus'' (kakabeak), and ''Carmichaelia'' (New Zealand broom). ''Swainsona'' is named after English botanist Isaac Swainson. A few species are known to produce swainsonine, a phytotoxin harmful to livestock (see Locoweed). In Australia, animals Substance intoxication, intoxicated with swainsonine are said to be pea struck. ;Selected species *''Swainsona acuticarinata'' (Alma Theodora Lee, A.T.Lee) Joy Thomps. *''Swainsona adenophylla'' J.M.Black *''Swainsona affinis'' (Alma Theodora Lee, A.T.Lee) Joy Thomps. *''Swainsona beasleyana'' F.Muell. *''Swainsona behriana'' F.Muell. ex J.M.Black *''Swainsona brachycarpa'' Benth. *''Swainsona bracteata'' (Maiden & Betche) Joy Thomps. *''Swainsona burkei'' F.Muell. ex Be ...
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