erect, shrubby; branches stellato-scabrid, virgate; leaves sub-fasciculate, sub-sessile, rigid, cuneate or linear-spathulate, truncate, mostly 3–5-toothed, glabrescent above, stellato-scabrid below; stipules leafy, linear-acute, ciliate, one-nerved; peduncles laxly racemose, short, 1–2-flowered; bracts linear; calyx inflated-pyramidal, prominently 5- angled, glabrous and shining, deeply 5- fid, the segments broadly ovate, acute, ciliolate; petals scarcely longer than the calyx, the claws much shorter than the limb; filaments linear-oblong, scarcely longer than the obtuse anthers. A virgate shrub, 1–2 feet high, turning black in drying. Leaves 3/4 inch long, 1–4 lines wide. Near H. flammea, from which it is readily known by its 5-angled, glabrous calyx.