Nemopanthus mucronatus (L.) Loes.
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.
Species Description - Branching shrub to 3 m; petioles 5–12 mm, often reddish; lvs elliptic, 2–5(–6) cm, obtuse or rounded to acute and mucronate at the tip, entire or very minutely and remotely toothed, rounded at base, evidently and closely reticulate-veiny; pedicels 1–2 cm, or even 3 cm in fr; cal virtually obsolete; anthers 0.3–0.8 mm; pet yellowish, 2 mm; fr red (yellowish), 6 mm thick; nutlets 4–5 mm, dorsally smooth or ribbed, laterally smooth; 2n=40. Moist or wet places; Nf. and Que. to Minn., s. to W.Va. and Ind. Mar.–June.