蟛蜞菊 peng qi ju

Verbesina calendulacea Linnaeus, Sp. Pl. 2: 902. 1753; Complaya chinensis (Osbeck) Strother; Jaegeria calendulacea (Linnaeus) Sprengel; Seruneum calendulaceum (Linnaeus) Kuntze; Solidago chinensis Osbeck; Thelechitonia chinensis (Osbeck) H. Robinson & Cuatrecasas; Wedelia calendulacea (Linnaeus) Lessing (1832), not Richard (1807); W. chinensis (Osbeck) Merrill.

Stems prostrate with ascending tips, elongate, rooting from lower nodes, appressed pilose. Leaves sessile or shortly petiolate; blade linear-oblong to lanceolate, 2-10 cm × 6-20 mm, papery, appressed pilose on both surfaces, base narrowed, margin sparsely mucronulate-serrulate, apex acute. Capitula 2-2.5 cm wide, solitary on erect branches; peduncle 6-12 cm; involucre hemispheric, 8-9 mm; phyllaries 5, subequal in length, 1-seriate, oblong, shortly appressed pubescent, apex acute or sometimes obtuse. Ray florets 1-seriate, yellow; corolla 9-11 × 3-3.5 mm, 2- or 3-dentate. Disk corolla 4-4.5 mm, 5-lobed. Achenes obovoid, ca. 3.5 × 1.5-2 mm, coarsely hairy at tip; pappus vase- or cup-shaped. Fl. Mar-Sep.

Paddy ridges, in grassy fields and moist lowland depressions in the north, also common in littoral areas. Fujian, Guangdong, Liaoning, Taiwan [India, Indonesia, Japan, Myanmar, Philippines, Sri Lanka, Thailand, Vietnam].