BrainKing - Fóruns de discussão (Garden and Winter Chat)

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Garden and Winter Chat

Tips on how to care for your garden, flowers, fruit trees, roses, gardenias, how to make and use compost, etc.Winter Chat is allowed until Spring.

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20. Março 2007, 06:01:41

Bernice

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☼ajtgirl☼: here is something I found.....
Notes: The genus Oxalis includes over 800 species of annual or perennial, stemmed or stemless, herbs and shrubs, often with underground bulbs or tubers. A few are aquatic species. Of the thirty species of Oxalis in Australia, twenty are naturalised and many are existing or potential serious pests in various parts of the country. Twenty two species of Oxalis were listed in Victorian nursery catalogues between 1855 and 1889. Eleven species are described in Gardening Australia's Flora (2003) with acknowledgement that 'some of the world's worst weeds belong in Oxalis,…'

One species of concern in Victoria is Soursob, Oxalis pes-caprae which invades coastal heath vegetation, grassland, woodland and dry forest. It also occurs along roadsides, and in gardens, crops and pastures. It is distinguished by the three heart-shaped leaflets with or without stalks which fold in dull days or at night. Flowers are bright yellow in colour and open in sunlight and close at night. There are masses of underground bulbs which are spread by water, birds, in dumped garden waste and during cultivation.