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Genus Isotropis Family Fabaceae
Subfamily Faboideae

Description: Herbs or subshrubs.

Leaves alternate, simple or 1-foliolate; stipules lanceolate, linear or minute.

Flowers solitary, axillary or in loose terminal racemes; bracts and bracteoles linear to linear-ovate. Calyx deeply toothed, the 2 upper teeth united almost to the top. Petals clawed, striate; standard circular, emarginate, longer than the wings; wings ovate, ± falcate; keel incurved, ± equal to wings. Stamens free. Ovary sessile, pubescent; ovules numerous; style incurved, filiform; stigma minute, terminal.

Pod oblong, linear or narrow-ovate, acute, usually turgid, pubescent; seeds reniform, with a reticulate surface, without an aril.


Photo © ANBG

Distribution and occurrence: World: c. 14 species, endemic Australia. Australia: Qld, N.S.W., N.T., W.A.

Text by M. F. Porteners
Taxon concept:

 Key to the species 
1Leaves ovate, mostly more than 5 mm wide; petiole 6–15 mm long; flowers 10–15 mm longIsotropis foliosa
Leaves narrow-linear, c. 1 mm wide; petiole 1–3 mm long; flowers 5–10 mm longIsotropis wheeleri

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