Summary ²

Verbena rigida (slender vervain, tuberous vervain), syn. V. venosa, is a flowering herbaceous perennial plant in the family Verbenaceae. It is native to Brazil and Argentina, and is not fully hardy in temperate climates, where consequently it is grown from seed as an annual.

Sources and Credits

1. (c) gmontes, all rights reserved
2. (c) Wikipedia, some rights reserved (CC BY-SA), http://en.wikipedia.org/wiki/Verbena_rigida

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