Description

"The stout, square stems of scarlet hedge-nettle or Texas betony rise to 3 ft. or more and are lined with pair of dark-green leaves becoming smaller up the stem. The  inflorescence is an interrupted  spike of two-lipped, bright-red, tubular flowers. A stout, erect, leafy plant, covered with soft hairs, with scarlet bilaterally symmetrical flowers in whorls at intervals in a  spike at top of 4-sided stem. 

Its scarlet color distinguishes this species from other western plants of its  genus, which are pink or purplish. If cultivated, it should be grown from seed.  Stachys plants have no stinging hairs, as do true nettles, but resembles nettles in other ways, especially before flowering.  In the Old World, some grow near hedges and are known as hedge-nettles. (wildflower.org)