Argemone ochroleuca Sweet subsp. ochroleuca (Mexican poppy) is widespread throughout NSW, it has cream to pale yellow petals; seeds approximately. Argemone mexicana subsp. ochroleuca (Sweet) Schwarzb., Pl. Syst. Evol. (3- 4): , comb. inval. Argemone mexicana var. Abstract. The effects of 2 concentrations (15 and 30%) of ethanolic Argemone ochroleuca Sweet (Papaveraceae) extracts were determined on the feeding.

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Weber E ‘Invasive plant species of the world: When the fruit is ripe ochroleuac opens from the apex downwards, splitting away from the style with ribs attached to the stigma and so resembling the ribs of an umbrella. The best form of invasive species management is prevention. The genus Argemone contains around 30 species, all with prickly stems, leaves and capsules Schwarzbach and Kadereit, The leaves are bluish-green and alternate.

The sepals are shed as the flower opens. Manager Publishing Services, Brisbane.

Biological invasion by Myrica faya in Hawaii: Distribution Table Top of page The distribution in this summary table is based on all the information available. Siwakoti M; Varma SK, Additional Info Where does this species come from? The flowers are showy and have a dark red 3 to 6 lobed stigma glandular region at the tip of the style. It is also declared under legislation in Western Australia Queensland Government, The fruit is a prickly ellipsoid capsule that is 2.


Mexican poppy, prickly poppy, devil’s fig, golden thistle of Peru, biniguy thistle, white thistle, yellow poppy, Mexican thistle, Mexican prickle poppy. Dicotyledonae Summary of Invasiveness A.

Management of grazing levels is likely to reduce susceptibility to A. The prickly stems are conspicuously bluish-green or greyish-green in colour i.

Scientific name

The basal leaves are slightly stalked and crowded into a dense rosette a cluster of leaves at the base of a plant often lying flat against the ground. The initiation of a biological control programme against Argemone mexicana L. Consistent follow-up work is required for sustainable management.

Indian Forester, 7: National Plant Data Center. Journal of Palynology, When using any herbicide always read the label first and follow all instructions and safety requirements. This species is very similar to Argemone mexicanawhich is also known as Mexican poppy, and hence distribution information for these species has often been in error or combined.

Factsheet – Argemone ochroleuca

Harvesting crops in field infested with Argemone ochroleuca occhroleuca be painful. Warm temperate climate with dry winter Warm average temp. What Does The Law Say? Spiny, oblong green fruit capsules turn.


Biological control of weeds in Australia [ed. Ownbey differentiates it from A. According to Argemonne of North Americait is present at altitudes of m.

Argemone ochroleuca subsp. ochroleuca

A complete guide to declared weeds and invaders in South Africa. Pacific Island Ecosystems at Risk.

Ecological Monographs, 69 1: A reference guide to environmental weeds. Argemone ochroleuca is commonly found as a weed of roadsides, mining dumps, rabbit warrens, recently cultivated paddocks, degraded land, and over-grazed pastures.

A biological control argemlne for A. Biological control of tropical weeds with Central and South American origin: Reddy CS; Chiranjibi Pattanaik, The Plant List,