Rosa sect. Pimpinellifoliae

de Candolle ex Seringe

Mus. Helv. Bot. 1: 3. 1818.

Synonyms: Rosa sect. Luteae Crépin Rosa sect. Sericeae Crépin
Treatment appears in FNA Volume 9. Treatment on page 93. Mentioned on page 78, 82.

Subshrubs, forming dense patches; rhizomatous, rhizomes long. Stems erect, 2–10(–15) dm; distal branches glabrous, eglandular; infrastipular prickles absent, internodal prickles erect or ± curved, usually intermixed with aciculi. Leaves persistent, 2.5–8 cm, membranous; stipules persistent, adnate to petiole, auricles flared, margins entire or serrate, eglandular or glandular; leaflets (5–)9–11(–13), terminal: petiolule 2–4 mm, blade oblong-ovate, suborbiculate, or broadly elliptic, 5–22 × 5–12 mm, abaxial surfaces glabrous, eglandular, adaxial green, dull, glabrous. Inflorescences: flowers solitary. Pedicels erect, slender, 15–35 mm, glabrescent, eglandular, sometimes with aciculi; bracts absent. Flowers 2–4 cm diam.; hypanthium subglobose, glabrous, eglandular; sepals persistent, erect, ovate-lanceolate, 10–12 × 2.5–3 mm, margins entire, abaxial surfaces glabrous, eglandular; petals single, white [rarely pink]; carpels 18–23, styles free, lanate, stylar orifice 2.5–3 mm diam., hypanthial disc flat, 4–4.5 mm diam. Hips blackish purple, globose or subglobose, 8–13 × 8–16 mm, lustrous, glabrous, eglandular; sepals persistent, erect. Achenes basiparietal.


Introduced; Eurasia, introduced also in Atlantic Islands (Iceland), Pacific Islands (New Zealand).


Species ca. 25 (1 in the flora).

In addition to the species treated here, yellow-flowered Rosa hugonis Hemsley has been reported from Ontario.

Selected References


Lower Taxa

Walter H. Lewis +, Barbara Ertter +  and Anne Bruneau +
de Candolle ex Seringe +
Eurasia +, introduced also in Atlantic Islands (Iceland) +  and Pacific Islands (New Zealand). +
Mus. Helv. Bot. +
Introduced +
Rosa sect. Luteae +  and Rosa sect. Sericeae +
Rosa sect. Pimpinellifoliae +
Rosa subg. Rosa +
section +