VERBENACEAE

Verbena rigida

Common Name:  Veiny Vervain, Tuber Vervain (*native of South America)

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this habit picture may reveal why this plant's specific epithet is rigida meaning "stiff" or "rigid" the leaves are also stiff and have coarse trichomes that feel like sandpaper as seen below
another habit picture  
 
what is the leaf arrangement?  

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