Solidago ludoviciana (A. Gray) Small

Plants 50–90(–150) cm; rhizomes deep-seated, main, short, or caudices and slender bracteate rhizomes. Stems 1 or in clones 2–5+, proximally glabrous or short-strigose in arrays. Leaves: basal and proximal cauline tapering to long, winged petioles (to 100 mm), blades elliptic to obovate or ovate, 80–200 (including petioles) × 25–80 mm, bases broadly to narrowly attenuate, margins serrate, apices acute or obtuse, faces glabrous or sparsely scabroso-strigose; mid to distal cauline sessile, blades linear-elliptic to elliptic-oblanceolate, 20–60 × 4–20 mm, much reduced distally and usually ascending to appressed, bases tapered, margins entire to sparsely shallowly serrate, ciliate, apices acute. Heads 50–140, secund on longer branches, less so on apical branches, in open paniculiform arrays, proximal branches ascending and bracteate, apical portions arching. Peduncles 1–4 mm short-strigose, bracteolate. Involucres campanulate, 4–5(–5.8) mm. Phyllaries in 3–4 series, ascending, lanceolate to oblong, strongly unequal, margins finely fimbriate-ciliate distally, midnerves swollen apically, apices broadly acute to obtuse, faces glabrous. Ray florets 4–6; laminae ± 2 × 1 mm. Disc florets 5–7; corollas 4–5 mm, lobes 1–1.5 mm. Cypselae (greenish turning golden brown, obconic) 2–3 mm (ribs 4–7), short strigose, more so on distal ¹ / 2 ; pappi 3–4 mm. 2n = 18, 36.

Solidago boottii Hooker var. ludoviciana A. Gray, Proc. Amer. Acad. Arts 17: 195. 1882; S. arguta Aiton var. strigosa (Small) Steyermark; S. strigosa Small

Solidago ludoviciana, the Louisiana goldenrod, is a North American plant species in the family Asteraceae native to Louisiana, Texas and Arkansas. It can be found in dry open woods and along roadsides and other sunny, disturbed locations.

Solidago ludoviciana can be as tall as 150 cm (5 feet). It has round to elliptic leaves and open panicles of yellow flower heads. One plant can produce as many as 140 small heads

Solidago ludoviciana là một loài thực vật có hoa trong họ Cúc. Loài này được (A.Gray) Small miêu tả khoa học đầu tiên năm 1903.