Rosa shangchengensis T. C. Ku

One of us (Robertson) has seen no specimens of this species.

Shrubs. Branchlets red-brown, terete, often curved, glabrous; prickles subulate, straight. Leaves including petiole 4–5.5 cm; stipules mostly adnate to petiole, free parts lanceolate, margin entire, sometimes glandular serrate, apex acuminate; rachis and petiole glabrous, with sparse, short, curved prickles; leaflets usually 7, obovate or oblong, 1–2 × 0.5–1.5 cm, both surfaces glabrous, base cuneate or broadly cuneate, margin serrate, apex acute or truncate. Flowers 2 or 3 and fasciculate, ca. 2.8 cm in diam.; pedicel 2–2.5 cm, densely stipitate glandular, bracts caducous. Hypanthium obovoid-oblong, abaxially densely stipitate glandular. Sepals 5, ovate-lanceolate, 1–1.3 cm, abaxially densely stipitate glandular, adaxially densely yellow-white pubescent, margin entire, apex acuminate or caudate-acuminate. Petals 5, white, long obovate, base cuneate, apex rounded. Styles connate in column, exserted, nearly equaling or slightly shorter than stamens, pubescent. Hip unknown.

SE Henan (Shangcheng Xian).

Rosa shangchengensis là loài thực vật có hoa trong họ Hoa hồng. Loài này được T.C. Ku miêu tả khoa học đầu tiên năm 1990.