Common Names: Shisho, beefsteak plant
Sub-category: Mint family
Resembles stinging nettles, however it lacks the stinging hairs. Leaves and stems are often a dark purple. Stems are up to 1m tall, erect, purple and 4-angled, with a single median vertical groove on each side of the stem. Leaves are opposite, petiolate, decussate. Petioles to 5cm long, purple, with a very shallow adaxial groove. Blades ovate, serrate, acute, to 10cm long, 8cm broad, sometimes crisped or not, typically green above and purple-green or entirely purple below, mostly glabrous above, pubescent on the veins below, with any punctate glands below (use a lens to see). Lateral veins prominent and expressed below.
Can be found near rich soils, alluvial soils or dry soils along streams, spring branches, gravel bars, roadsides, and railroads.
Primary Flower Color: Pink
Secondary Flower Color: Blue/Purple