Compilation
Droguetia ambigua

a herb apparently 1 1/2 ft. or more high; stems obtusely 4-angled, grooved down each face, thinly and minutely adpressed-puberulous, smooth, reddish when dried; leaves opposite, or occasionally alternate on the branches; petioles 2–10 lin. long; blades of those on the main stems 1 1/4–2 1/4 in. long, 1/2–1 1/4 in. broad, of those on the branches smaller, ovate, acuminate, broadly cuneate at the base, and with 5–12 obtuse teeth or crenations on each margin, with the terminal tooth twice or more than twice as long as broad, thinly pubescent and green above, glabrous or with very few hairs and dull purplish beneath; stipules 1 1/2–2 lin. long, ovate, subulate-acuminate, spreading, membranous, ciliate, whitish-brown or perhaps pinkish when alive; involucres and flowers in arrangement and structure very like those of D. urticæfolia, but the bisexual involucres are larger and up to 2 1/2 lin. in diam.; achenes not seen. null