Comprehensive Description
(
İngilizce
)
North American Flora tarafından sağlandı
Pectis leptocephala (Cass.) Urban, Sym. Ant. 5: 280. 1907
Pedis ciliaris Svi. Ohs. i01,m -part. 1791. Not P. ci/iarii 1759. L. Chthonia leptocephala Cass. Diet. Sci. Nat. 27; 206. 1823.
Pecd's /iH i/o/io Less. Linnaea 6: 709, in part. 1831. ^ot P . linifolia ,. 1759. Pectis Lessingii Fernald, Proc. Am. Acad. 33: 67. 1897.
A leafy annual, or becoming perennial; stem diffusely branched, often procumbent, and rooting at the base, up to 2 cm. long, short-pilose along two decurrent lines; leaves linear, 0.7-2 cm. long, 0.5-1.5 mm. wide, acute or obtuse, mucronate at the apex, with 2-4 pairs of bristles towards the base; glands in a single row along each margin; heads solitarjat the ends of the branches or in the forks; peduncles 1-3 cm. long; involucre cylindric, 4-5 mm. high, 1.2-2 mm. broad; bracts 5, oblong-linear or linear, obtuse or rounded at the apex, obtusely carinate below; ray-flowers 5; ligules 2-2.5 mm. long, yellow, often tinged with red; diskflowers 4—7; corollas 2-2.3 mm. long; achenes 2.5 mm. long, short-pilose; squamellae of the disk-flowers 5, rarely 4, and of the ray-flowers 2, with a lanceolate incised base and ending in an awn shorter than the disk-corollas.
Type locality: Not given.
Distribution: Florida, Bahamas, Hispaniola, and Cuba.
- bibliyografik atıf
- Per Axel Rydberg. 1916. (CARDUALES); CARDUACEAE; TAGETEAE, ANTHEMIDEAE. North American flora. vol 34(3). New York Botanical Garden, New York, NY