Eriogonum prattenianum Dur.

Herbs or subshrubs, spreading and matted or rounded to erect, 1-5 × 3-5 dm, glabrous. Stems: caudex spreading to erect; aerial flowering stems erect, slender, solid, not fistulose, arising at nodes of caudex branches and at distal nodes of short, non-flowering aerial branches, (0.5-)1-3 dm, glabrous, with a whorl of 3-6, leaflike bracts ca. midlength, similar to leaf blades, 0.7-1 × 0.2-0.4 cm. Leaves in compact basal rosettes; petiole 0.1-0.5 cm, tomentose; blade elliptic to ovate, 0.5-1.5(-2) × 0.2-0.7 cm, densely white-tomentose on both surfaces or sometimes subglabrous and pale green adaxially, margins entire, plane. Inflorescences capitate, 0.8-2 cm wide; branches absent; bracts absent immediately below involucre. Involucres 1 per node, campanulate, 3-4 × 3-8 mm, tomentose; teeth 8-10, occasionally lobelike, erect to reflexed, 1-3 mm. Flowers 3-8 mm, including 1-1.5 mm stipelike base; perianth yellow, glabrous; tepals monomorphic, spatulate to obovate; stamens exserted, 3-4 mm; filaments pilose proximally. Achenes light to rusty brown, 4-5 mm, glabrous.

Eriogonum prattenianum is a species of wild buckwheat known by the common name Nevada City buckwheat.

Eriogonum prattenianum là một loài thực vật có hoa trong họ Rau răm. Loài này được Durand mô tả khoa học đầu tiên năm 1855.