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(Argyreia nervosa, fam. Convolvulaceae )

Argyreia nervosa Argyreia nervosa Argyreia nervosa Argyreia nervosa Argyreia nervosa
Vigorous perennial twining climber with white woolly hairy stems up to 9m long; yellowish sap. Will scramble across the ground, covering large area if no climbing support available.
Form or habit: Climbing or twining plant
Leaf:Simple Alternate

Large heart-shaped, size varies with age and conditions, leathery, grey-green above, white wooly hairs below.

Flower conspicuous: Conspicuous
Flower colour: Pink
Flower description:Funnel-shaped to 50mm diameter, pink with darker throats, borne in few to several flowered, axillary clusters.
Fruit conspicuous: Conspicuous
Fruit colour: Brown
Fruit: Dry
Fruit description: ‘Fruits’ resemble miniature woodroses and consist of a central bud-shaded capsule, about 17 x 17mm, surrounded by 5 persistent petal-like calyx lobes, brown on the inside and silvery, hairy on the outside. Capsules usually contain 4 wedge-shaped hairy seeds, 4-7mm long.
Food source for:
Toxicity:Toxic if ingested
Origin:India and Burma
Weed status:Environmental/garden escapee
Notes:Spread by: Garden waste, water. Invades/threats: Rainforest margins, riverine rainforests, open eucalypt woodland, roadsides; overtops and smother trees.
Notes: Introduced as garden ornamental; scattered distribution across coastal, north and central QLD. Naturalised populations more common in drier northern section of this region but observed to be establishing as far south as Carmila. ‘Fruits’ used for floral arrangements. Toxic seeds contain alkaloids.
Information sources: Mackay Regional Pest Management Group (2011) Weeds of the Mackay Whitsunday Region.

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