Much like no. 1 [Richardia scabra L.], but becoming perennial, and more hairy, the lvs appressed-hispid on both sides; fr 2.5-3(-4) mm, its obovoid cocci with broad, open, medially keeled adaxial scar; 2n=28, 84. Disturbed, often sandy sites; native to tropical Amer., and extending ne. to se. Va. as a weed.

Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.

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