Comprehensive Description ( الإنجليزية )

المقدمة من North American Flora
Rosa obtusiuscula Rydberg, sp. nov
Stem slender, dark-brown, about 1 m. high, practically unarmed, branched; stipules adnate, narrow, about 1 cm. long, sparingly pubescent, the free portion lanceolate, more or less toothed; petiole and rachis sparingly pubescent, unarmed; leaflets 5 or 7, elliptic, rounded at the apex, crenate, dark-green, glabrous on both sides or sparingly pubescent beneath, 1-4 cm. long; flowers 1-4 together; pedicels short, rarely over 1 cm. long, sparingly glandular; hypanthium depressed-globose, sparingly glandular-hispid, in fruit 8-10 mm. thick; sepals lanceolate, caudate-attenuate, 1.5-2 cm. long, rather copiously glandular-hispid, spreading
and at last deciduous; styles numerous, distinct, persistent, not exserted; achenes inserted in
the bottom of the hypanthium.
Type collected along the French Broad River between Paint Rock and Del Rio, Cocke County, Tennessee, August 25, 1897, Thomas H. Kearney 695 (herb. N. Y. Bot. Gard.).
الاقتباس الببليوغرافي
Per Axel Rydberg. 1918. ROSACEAE (conclusio). North American flora. vol 22(6). New York Botanical Garden, New York, NY
زيارة المصدر
موقع الشريك
North American Flora