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Mexican Thistle Eryngium heterophyllum


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Mexican Thistle
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Alternate name: Wright's Eryngo

Family: Apiaceae, Carrot view all from this family

Description Native. Habit: erect, opposite, with a smooth silver stem. Height: 18-24 inches. Leaf: narrow silver lances, lobed, 2-5 inches long, arranged radially around the stem. Flower: White bracts resembling the leaves surround a 1/2 inch diameter oval head, silver turning light blue.

Flower July - October.

Habitat Sandy soils.

Range Louisiana west to Arizona, and into Mexico.

Discussion This plant resembles a thistle. Also known as: Wright's erygno.