Date Photo Taken: November 14, 2010
Location: Decatur, GA
Posted By: Kerimbaev
These are 3 more photos of my “Unknown Short Weed” post with photos from Nov 5, 2010. This specimen was 4 feet tall. The stem is light green with 2 distinctive lengthwise dark green stripes going up and down the square stem. Stem doesn’t have sharp corners like the mints do, but indistinct corners, giving it a squarish, smooth stem. The seed heads vary in appearance here (see pic). The fruits do look retroflexed on the spike. They stick to your clothes very easily when you brush by this plant. The leaves on this tall plant are opposite, otherwise I’d think this resembled one of the Amaranth genus (they have alternate leaves). Leaves opposite, minutely hairy, entire margins, soft, thin, limp and flexible. Anyone know what this is? It is fairly abundant in at least two Parks in Dekalb County, Georgia.