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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Noxious Weeds of Australia. When the flowers open they are quite showy cm across with six pale yellow, lemon or cream-coloured petals about 25 mm long. Scientific Name Argemone ochroleuca Synonyms Argemone mexicana L Common Names Mexican poppy, prickly poppy, devil’s fig, golden thistle of Peru, biniguy thistle, white thistle, yellow poppy, Mexican thistle, Mexican prickle poppy Family Papaveraceae Origin Native of Central America Mexico Top Habit A glaucous blue-green erect single to several stemmed annual with yellow sap, reproducing only by seed and with a central taproot.

Naturalised pteridophytes, gymnosperms, dicotyledons. ochroleeuca

The University of Arizona Press. In Australia, the majority of seed is dispersed by flood waters Northern Territory Government, Mexico What is its invasive status in South Africa? Biology and Ecology Top of page Genetics A.

Argemone ochroleuca – Wikispecies

Sheldon Navie mature fruit releasing its numerous seeds Photo: Chemical Control Hormone herbicides provide good control of young plants, such as 2,4-D amide and 2,4-D ester. While every care is taken to ensure the accuracy of this information, DEEDI does not argwmone reliance upon it, nor accept responsibility for any loss or damage caused by actions based on it.


Title Flowering habit Caption Argemone ochroleuca pale Mexican pricklypoppy ; flowering habit. More details, including preliminary identifications to genus of those species not identified to species level, can be found in Julien et al. In a recent survey of the riparian vegetation in the gulf region in north-western Queensland, Mexican poppy Argemone ochroleuca subsp.

Scientific Name

Seeds have a dormancy period of up to a few months and may remain in the soil seed bank for up to seven years Northern Territory Government, Council of Heads of Australasian Herbaria, Notes on some interesting and noteworthy plants from Southern India.

Argemone ochroleuca Sweet subsp. The upper leaves are sessile without a stalk and clasping the stem, the shape being variable. A subspeciesA. When the fruit is ripe it opens from the apex downwards, splitting away from the style with ribs attached to the stigma and so resembling the ribs of an umbrella.

Please consider upgrading your browser to the latest version or installing a new browser. Click on images to enlarge. It is also declared under legislation in Aregmone Australia Queensland Government, A very spiny annual herb with sharp spiky leaves which are usually greyish blue in colour. A biological control programme for A.


Argemone ochroleuca – Wikipedia

Phenological stages that will be assigned are leaf growth, stem growth, floral buds developing, flowering, seed development, seed ripening and ochroleeuca dissemination or death West and Wein, Neither species have obvious restrictions to certain agronomic or environmental conditions Karlsson et al.

Sepals 3, obovate oblong, with horn as long as the body, mm long, mm broad. The initiation of a biological control programme against Argemone mexicana L. Argemone ochroleuca Sweet Argemone subfusiformis Ownbey subsp.

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Gareth Bain – photo in public domain. Control of young plants of A. The main danger to livestock, horses and poultry usually comes from fodder and other stock feeds that have become contaminated with its leaves or seeds Northern Territory Government, Cyto-palynological studies on weed flora of cultivable lands of Patiala district Punjab.

Glyphosate provides good control in non-selective situations.

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