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Mexican pricklypoppy

Scientific Name
Argemone mexicana
Scientific Author
Linnaeus, C (1753)
Taxonomy
(Magnoliophyta: Magnoliopsida: Papaverales: Papaveraceae)
Reliability
High
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Diagnostic Images

Seed Dorsal
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Caption
Seed Project
Source
Clare McLellan Museum Victoria
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Diagnostic Images (6)
Other Images (5)
Diagnostic Notes
Pictured: Seed

Description:

Seed Colour: Variable - red/brown, Purple, Black

Seed Length: 1.1 - 2mm

Seed Sculpture: Alveolate

Seed Shape: Globular (Round)

An erect annual herb that grows to 1.5 m tall. The leaves are divided or lobed, and bear small yellowish spines along the edges. The basal leaves form a rosette at ground level, but soon wither. The upper or stem leaves are 7-15 cm long and 2-6 cm wide, sometimes much larger, and are arranged alternately along the stems. They are bluish-green or greyish-green in colour, usually with whitish veins. The flowers are 3-7 cm in diameter and consist of six, bright yellow petals. Numerous bright yellow stamens and a purple stigma occur in the centre of the flowers. The fruits are spiny, oblong capsules 2.6-3.6 cm long and 1.4-1.8 cm wide and contain numerous small seeds 1.5-1.7 mm in diameter (Ownbey 2007). Source: See Web Links Weeds in Australia
More Information
Author
Clare McLellan
Created
03/10/2011 04:22 AEST
Last Updated
21/01/2013 10:49 AEST
Citation
Clare McLellan (2011) Mexican pricklypoppy (Argemone mexicana) Updated on 1/21/2013 10:49:51 AM Available online: PaDIL - http://www.padil.gov.au.
Image Use
Free for use under the Creative Commons Attribution 3.0 Australia License

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