Comprehensive Description
provided by North American Flora
Pectis depressa Fernald, Proc. Am. Acad. 33: 71. 1897
A depressed annual, branched at the base, forming mats 3-4 dm. across; stem villous, much branched; leaves linear-oblong, 1-2 cm. long, 1.5-5 mm. wide, mucronate, ciliolate on the margin, slightly villous on the midrib beneath, with 3-5 pairs of bristles near the base; glands scattered; heads solitary in the forks and at the ends of the branches; peduncles slender, about 2 mm. long; involucre campanulate, 4-5 mm. high, 3-4 mm. broad; bracts 5, unequal, oblong-obovate, obtuse, thin, ciliate, rounded at the apex, striate, keeled at the base; rayflowers 5; ligules yellow, oblong, 3 mm. long; disk-flowers 30-35; corollas 2.5 mm. long; achenes 2-2.5 mm. long, short-hispid on the angles; pappus of the disk-flowers of 12-15, linear-subulate unequal squamcUae. the longer 2 mm. long; that of the ray-flowers usually reduced to a short irregular crown of more or less united minute squamellae.
TyPE loc.lity: Acapulco. Guerrero.
Distribution: Known only from the type locality.
- bibliographic citation
- Per Axel Rydberg. 1916. (CARDUALES); CARDUACEAE; TAGETEAE, ANTHEMIDEAE. North American flora. vol 34(3). New York Botanical Garden, New York, NY
Pectis depressa: Brief Summary
(
Vietnamese
)
provided by wikipedia VI
Pectis depressa là một loài thực vật có hoa trong họ Cúc. Loài này được Fernald mô tả khoa học đầu tiên năm 1897.
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