剑叶金鸡菊 jian ye jin ji ju

Perennials, 10-30(-60+) cm. Aerial nodes proximal to first peduncle usually 1-3(-5+), distalmost 1-3 internodes 1-2(-8+) cm. Leaves: basal and cauline on proximal 1/4-1/3(-1/2) of plant height; petioles 1-5(-8+) cm; blades simple or with 1 or 2+ lateral lobes, simple blades or terminal lobes ovate-lanceolate or lanceolate to oblanceolate or linear-lanceolate, 5-12 cm × 8-15(-18+) mm. Peduncles (8-)12-20(-35+) cm; calycular bracts ovate-lanceolate to linear-lanceolate or linear, 4-8(-12) mm; phyllaries deltate to dentate-lanceolate, 8-12+ mm. Ray limbs yellow, 15-30+ mm. Disk corollas 6-7.5 mm, apices yellow. Achenes 2.6-4 mm, wings ± spreading, ± papery, entire. Fl. May-Jul. 2n = 26.

Sandy soils, ditches and roadsides, other disturbed sites. Widely cultivated and naturalized in China [native to North America].