an erect herb, apparently 1 1/2 ft. or more high; stems obtusely 4-angled, grooved down each face, more or less pubescent or scabrous; leaves opposite; petiole 1–10 lin. long; blade 4–18 lin. long, 3–12 lin. broad, ovate or somewhat rhomboid-elliptic, acute or subobtuse, broadly cuneate at the base and with 4–6 obtuse teeth on each margin, and the terminal tooth not longer than broad, glabrous or pubescent on one or both sides; green above and beneath; stipules 1/2–1 lin. long, ovate or lanceolate, mucronate, spreading or reflexed, membranous, ciliate and pubescent, green; involucres sometimes solitary in each axil and female, but more usually a pair and bisexual, or sometimes bisexual and female in the same axil, puberulous with hooked hairs; bisexual involucre about 1 1/2 lin. in diam., broadly cup-shaped or hemispheric, 6–8-toothed, and the teeth with their mucronate points less than 1/4 lin. long, shorter than the flowers, green, puberulous, containing 4–8 male surrounding 2 female flowers; female involucre ovoid or flask-shaped, minutely toothed at the contracted mouth, puberulous, containing 1 female flower; perianth of the male flowers bract-like, entire, concave, ovate-lanceolate, shortly mucronate-acute, much longer than the involucre, puberulous on the back with hooked hairs, ciliate; stigma curved or coiled in a spiral; achenes about 3/4 lin. long, slightly oblique, with a stout keel along one margin, slightly rugose, glabrous, brown. null
