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Vernonia domingensis

Comprehensive Description ( الإنجليزية )

المقدمة من North American Flora
Vernonia domingensis (Spreng.) DC. Prodr. 5: 30. 1836
Proustia domingensis Spreng. Syst. 3: 502. 1826.
Vernonia montana Gleason, Bull. N. Y. Bot. G*ard. 4: 191. 1906.
Stems shrubby, climbing, 6 m. long, puberulent when young, becoming glabra te with age; leaves crowded, the blades firm or coriaceous, oblong-elliptic to rhomboid or oblong-obovate, 8-16 mm. long, 5-8 mm. wide, acute or rounded, entire, somewhat revolute, cuneate at base, dark-green, glabrous, and glandular above, minutely puberulent and glandular beneath, sessile or with petioles 1-2 mm. long; inflorescence subcapitate; heads 2-5, sessile or nearly so, 8flowered; involucre 5 mm. high, campanulate, rounded at base, regularly imbricate; scales appressed, obtuse to subacute, glabrous, or puberulent at the tip, the outer broadly ovate, the inner ovate-lanceolate to lanceolate; achenes Obscurely ribbed, glabrous, glandular, 3 mm. long; pappus yellow-brown, the bristles 3.5-4 mm. long, the scales narrow, almost entire, 0.4-0.5 mm. long.
Type locality: Hispaniola. Distribution: Hispaniola.
ترخيص
cc-by-nc-sa-3.0
الاقتباس الببليوغرافي
Per Axel, Rydberg. 1922. CARDUALES; AMBROSIACEAE, CARDUACEAE. North American flora. vol 33(1). New York Botanical Garden, New York, NY
النص الأصلي
زيارة المصدر
موقع الشريك
North American Flora