Spiny emex (Rumex hypogaeus)
Description
Emex australis, commonly known in English as Three corner jack,devil's thorn, or double gee (also doublegee, from the old Afrikaner name dubbeltge-doorn - 'devil's thorn'), is a herbaceous plant of the Polygonaceae. It occurs indigenously in South Africa and is also an invasive species in Australia & Texas in the USA.
Taxonomic tree
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Domain: Eukarya
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Kingdom: Plantae
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Phylum: Magnoliophyta
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Class: Magnoliopsida
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Order: Caryophyllales
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Family: Polygonaceae
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Genus: Rumex
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