Summary.mw-parser-output table.commons-file-information-table,.mw-parser-output.fileinfotpl-type-information{border:1px solid #a2a9b1;background-color:#f8f9fa;padding:5px;font-size:95%;border-spacing:2px;box-sizing:border-box;margin:0;width:100%}.mw-parser-output table.commons-file-information-table>tbody>tr,.mw-parser-output.fileinfotpl-type-information>tbody>tr{vertical-align:top}.mw-parser-output table.commons-file-information-table>tbody>tr>td,.mw-parser-output table.commons-file-information-table>tbody>tr>th,.mw-parser-output.fileinfotpl-type-information>tbody>tr>td,.mw-parser-output.fileinfotpl-type-information>tbody>tr>th{padding:4px}.mw-parser-output.fileinfo-paramfield{background:#ccf;text-align:right;padding-right:0.4em;width:15%;font-weight:bold}.mw-parser-output.commons-file-information-table+table.commons-file-information-table,.mw-parser-output.commons-file-information-table+div.commons-file-information-table>table{border-top:0;padding-top:0;margin-top:-8px}@media only screen and (max-width:719px){.mw-parser-output table.commons-file-information-table,.mw-parser-output.commons-file-information-table.fileinfotpl-type-information{border-spacing:0;padding:0;word-break:break-word;width:100%!important}.mw-parser-output.commons-file-information-table>tbody,.mw-parser-output.fileinfotpl-type-information>tbody{display:block}.mw-parser-output.commons-file-information-table>tbody>tr>td,.mw-parser-output.commons-file-information-table>tbody>tr>th,.mw-parser-output.fileinfotpl-type-information>tbody>tr>td,.mw-parser-output.fileinfotpl-type-information>tbody>tr>th{padding:0.2em 0.4em;text-align:left;text-align:start}.mw-parser-output.commons-file-information-table>tbody>tr,.mw-parser-output.fileinfotpl-type-information>tbody>tr{display:flex;flex-direction:column}.mw-parser-output.commons-file-information-table+table.commons-file-information-table,.mw-parser-output.commons-file-information-table+div.commons-file-information-table>table{margin-top:-1px}.mw-parser-output.fileinfo-paramfield{box-sizing:border-box;flex:1 0 100%;width:100%}} Description: Introduced, cool-season annual, stemless or short-stemmed herb to 30 cm tall. Leaves form a prostrate rosette to 50 cm in diameter; they are spear shaped, serrated, deeply lobed; upper surface hairless to hairy; lower surface white felted. Flowerheads occur on unbranched peduncles. Ray florets are yellow, ligulate and sterile; disc florets are dark, tubular and bisexual. Germinates in autumn/winter; flowers in spring. A native of South Africa, it is strongly competitive weed of crops, pastures, lawns and disturbed areas (e.g. roadsides). Prefers lighter textured soils of reasonable fertility and where there is a lack of competition. Grazed by stock, but is of lower value than many good pasture species. Can cause nitrate poisoning in sheep and cattle on high fertility soils; taints milk; causes allergic skin reaction in horses and donkeys. Best managed using a number of methods: competition, grazing, mechanical, herbicides. Maintain dense, vigorous pastures and minimise soil disturbance. Needs to be controlled in year prior to sowing pastures; control is easiest at the seedling stage. Combined knockdown herbicides prior to sowing, selective post-sowing herbicides or manuring of crops and pastures can be highly effective for control. Date: 11 September 2013, 15:16. Source:
Arctotheca calendula plant4. Author:
Harry Rose from South West Rocks, Australia.
