Comprehensive Description
(
الإنجليزية
)
المقدمة من North American Flora
Vernonia morelana Gleason, Bull. Torrey Club 46: 241. 1919
Stems shrubby, branching above, 3-5 m. high, closely gray-tomentose, becoming glabrate with age; leaf-blades firm, dull-green, ovate-oblong, 6-8 cm. long, 2.5-3 cm. wide, entire or remotely serrate, obtuse or rounded at each end, closely scabrous-pubescent above, finely gray-tomentose beneath, on tomentose petioles 8 mm. long, the upper leaf-blades similar but smaller and more densely tomentose, those in the cymes broadly ovate to subrotund, 5-15 mm. long; cymes freely branched, forming a hemispheric cluster 2 dm. broad; heads 21-flowered; involucre campanulate, 4-4.5 mm. high; scales regularly imbricate, all appressed or barely spreading, the outer and midddle ovate to ovate-oblong, sharply acute or cuspidate, tomentose-ciliate and frequently puberulent, the inner lanceolate, sharply acute to subacuminate, nearly or quite glabrous; achenes thinly pubescent and densely resinous-glandular; pappus white or pale-tawny, the bristles 6 mm., the narrow scales 0.6-0.8 mm. long.
Type locality: Cuernavaca, Morelos. Distribution: Morelos.
- الاقتباس الببليوغرافي
- Per Axel, Rydberg. 1922. CARDUALES; AMBROSIACEAE, CARDUACEAE. North American flora. vol 33(1). New York Botanical Garden, New York, NY
Vernonia cordata: Brief Summary
(
الفيتنامية
)
المقدمة من wikipedia VI
Vernonia cordata là một loài thực vật có hoa trong họ Cúc. Loài này được Kunth miêu tả khoa học đầu tiên năm 1820.
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