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Genus Osteocarpum Family Chenopodiaceae

Description: More or less glabrous annuals or short-lived perennials.

Leaves alternate, semiterete, succulent.

Flowers solitary, axillary, bisexual. Stamens 5. Styles 2.

Fruiting perianth thickened, with a hollow base; wings usually 2–5, rarely 1, usually vertical. Seed horizontal, embryo annular.


Photo © ANBG

Distribution and occurrence: World: 5 species, endemic Australia. Australia: all mainland States. [Babbagia]

Text by S. W. L. Jacobs
Taxon concept:

Taxa not yet included in identification key
Osteocarpum x scleropterum

 Key to the species 
1Vertical wings on perianth 1, 2 or 32
Vertical wings on perianth 53
2Vertical wings on perianth unequal, 1 or more often 2Osteocarpum acropterum
Vertical wings on perianth equal, 2 or rarely 3
                       Back to 1
Osteocarpum dipterocarpum
3Wings membranous, more or less equal, arising from the side of the perianth, margins sinuateOsteocarpum pentapterum
Wings hardened, one much larger than the other 4, erect, arising from towards the top of the perianth
                       Back to 1
Osteocarpum scleropterum

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