Family: Fabaceae
Isotropis
Citation:
Benth., in Endl., Enum. Pl. Hügel 28 (1837).
Derivation: Greek isos, equal; tropis, keel; the keel is about as long as the wings.
Synonymy: Not Applicable Common name: None
Description:
Subshrubs or herbs with erect or spreading pubescent to woolly tomentose branches; leaves alternate, simple or unifoliolate, herbaceous, pubescent, rarely glabrous; stipules linear-falcate or minute.
Flowers solitary, axillary or in loose terminal racemes, orange-yellow and/or purple; bracts and bracteoles narrow-lanceolate to linear; calyx very deeply lobed, the upper 2 lobes united almost to the top; petals clawed, striate; standard orbicular, notched, longest; wings obovate, falcate; keel incurved, nearly equalling the wings; stamens 10, free; ovary sessile, pubescent, style filiform, incurved, with a minute terminal stigma, many-ovulate.
Pod oblong-linear to lanceolate, acute, usually turgid; seed reniform, with a reticulate surface, exarillate.
Distribution:
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Endemic to Australia, with some 13 species.
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Biology:
No text
Key to Species:
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1. Leaves narrow-linear, channelled to grooved above |
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I. wheeleri 3. |
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1. Leaves ovate or obovate to orbicular |
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2. Leaves lamina 8-28 mm long, on petioles 5-10 mm long |
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I. atropurpurea 1. |
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2. Leaves lamina less than 10 mm long, on petioles to 1 mm long |
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I. centralis 2. |
Author:
Not yet available
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