Flannel weed
Sida cordifolia, Fam. Malvaceae
Perennial sub-shrubs, variously hairy including star-shaped hairs, stems usually woody-based and strongly fibrous above. Branched, upright densely hairy, to 1.5m.
Weed Category: |
Other invasive plants Invasive plants that are not prohibited or restricted invasive plants, but are known to spread readily and cause negative impacts, within the region.
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Weed: | Yes |
Form or habit: | Shrub |
Family: | Malvaceae |
Leaf: | Simple Alternate Alternate simple, margins serrately toothed. Stipules present. Ovate yellowish-green, 35-75 x 25-60mm on stout stalks. Heart shaped base, blunt at the tip; densely felted with soft hairs giving a flannel-like texture; stipules thread-like. |
Flower conspicuous: | Conspicuous |
Flower colour: |
Yellow |
Flower description: | Pale yellow, 8-10mm long, in dense clusters, 5-petalled. |
Fruit conspicuous: | Inconspicuous |
Fruit colour: |
Brown |
Fruit: | Dry |
Fruit description: | Dry round brownish and radially separating into 1-seeded, wedge-shaped segments. About 6-8mm in diameter; segments 8-10, each with 2 fine bristles about 3mm long. Calyx 5-lobed, persistent, 6-7mm long, hairy, 10 ribbed at the base, lobes tapering to a point. |
Habitat: | |
Distribution | |
Food source for: | |
Toxicity: | No toxicity known |
Origin: | Probably native of America |
Notes: | Spread by: segments spread by water, farm machinery, stock and in contaminated feed or seed. Bristly segments also adhere to clothing and animals. Invades/threats: pastures, open forests and disturbed areas along roadsides, headlands and stock camps. Notes: presence is usually indicative of disturbance or over grazing. this species is very common in this region. There are also other less common weedy species in this region. Environmental weed. |
Information sources: | Mackay Regional Pest Management Group (2018) Weeds of the Mackay Whitsunday Region Second Edition. |