Telopea 12(2) 293–307 © 2008 Royal Botanic Gardens and Domain Trust ISSN0312-9764 A revision of the Indigofereae (Fabaceae) in Australia. 2. Indigofera species with trifoliolate and alternately pinnate leaves Peter G. Wilson 1 and Ross Rowe 1, 2 1 National Herbarium of New South Wales, Royal Botanic Gardens, Sydney NSW 2000, Australia 2 present address: Department of the Environment, Water, Heritage and the Arts, GPO Box 787, Canberra ACT 2601, Australia. Abstract The second part of a revision of the tribe Indigofereae (Fabaceae) occurring in Australia is presented, covering those species with consistently trifoliolate leaves and the pinnate-leaved species with leaflets alternate on the rachis. Ten species are considered here: five are introduced, four are native and one is endemic. A neotype is chosen for Indigofera glandulosa Wendl. and a lectotype for its synonym Psoralea leichhardtii F.Muell. Introduction In our first paper on Indigofereae in Australia (Wilson & Rowe 2004) we revised Indigastrum and the simple or unifoliolate species of Indigofera. Here we consider a further set of species that fall into two broad groups: those with consistently trifoliolate leaves and those with alternate leaflets. Almost all the alternate leaflet group are introductions to Australia and, with one exception, the remaining species included in this paper are native but not endemic. The single endemic species, however, is clearly related to species that occur outside Australia. Characters Particular care should be taken with one of the introduced species that has alternate leaflets: Indigofera oblongifolia. This species has a low leaflet number (usually 1–3) and may be mistakenly assessed as being either unifoliolate or trifoliolate. In this paper, hairs are described as sparse when they are well separated and the stem or leaf surface is clearly visible, as moderately dense when the hairs are separated by the length of one arm of the biramous hair (or thereabouts), dense when the arms overlap but do not fully conceal the epidermis, and very dense when the epidermis is completely concealed.