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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Council of Heads of Australasian Herbaria, Antimicrobial activity of Agromone ochroleuca Sweet Chicalote. Mexican poppy Argemone ochroleuca subsp.

When the flowers open they are quite showy cm across with six pale yellow, lemon or cream-coloured petals about 25 mm long. As Argemone ochroleuca is so widespread this is unlikely to be possible in many instances. The prickly stems are conspicuously bluish-green or greyish-green in colour i.

Spraying with a suitable herbicide can control A. Naturalised pteridophytes, gymnosperms, dicotyledons. Management of grazing levels is likely to reduce susceptibility to A.

Pollen anomaly – a clue to natural hybridity in Argemone Papaveraceae. An Illustrated Guide to Arizona Weeds. Boulos and El-Hadidi, Weed Research, 12 3: Sheldon Navie comparison of the leaves and immature fruit of Argemone mexicana, left, and Argemone ochroleuca subsp.


Click on images to enlarge infestation in a dry creek-bed Photo: Manager Publishing Services, Brisbane. According to Flora of North Americait is present at altitudes of m.

Argemone ochroleuca – Wikispecies

Uses Top of page In Mexico, A. Flora Europaea, Volume 1. The spiny capsules and are generally oval i.

Quantifying threats to imperiled species in the United States. Plant phenological index technique.

Check our website at www. Plant demography, nitrogen fixation, ecosystem effects. 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.

Argemone ochroleuca pale Mexican pricklypoppy ; flowering habit. It is also one of the most common weeds present in Currawinya National Park, in the south-west of Queensland. Hormone herbicides provide good control of young plants, such as 2,4-D amide and 2,4-D ester. The margin edge of the leaf has wavy prickles at the tips of the lobes as well as scattered on the underside of the leaf. Flora of North America North of Mexico.


This species reproduces via large numbers of seed. Creamy white to yellow flower. It is most common in disturbed areas such as roadsides, mining dumps, rabbit warrens, recently cultivated paddocks, degraded land and over-grazed pastures.

Sheldon Navie habit of mature plant Photo: Patel, ; Patel et al.

Weeds of Australia – Biosecurity Queensland Edition Fact Sheet

The species successfully identified can be found in the Natural Enemies table. Journal of Economic and Taxonomic Botany, 30 2: The flowers of A. Social Impact Top of page A. This sepcies is found in a wide range of environments i.

South West Rocks, Australia. Soil Tolerances Top of page Soil drainage free Soil texture light medium Special soil tolerances saline.