Blue Ridge Goldenrod

Solidago spithamaea is listed as threatened by the U.S. Fish and Wildlife Service. The species is extant at only three locations; all other known populations were extirpated. It is in the Center for Plant Conservation’s National Collection of Endangered Plants.

Plants 10–40 cm (with somewhat noxious odor); rhizomes short, stout, or branched caudices. Stems 1–10+, erect (usually simple), rough-puberulent or shortly spreading hirsute, or proximally glabrate. Leaves: basal petioles 1.5–7 mm, blades spatulate to lanceolate or subrhombic, mostly 50–109 × 15–40 mm, bases tapering, glabrous, margins sharply serrate, ciliate, apices acuminate; mid and distal sessile, blades lanceolate to subrhombic, much reduced distally, margins serrulate becoming entire distally, glabrous. Heads 15–50+ in compactly rounded corymbiform arrays, becoming paniculiform in robust plants. Peduncles 1–7, short-strigose; bracts leaflike, 5–15 mm. Involucres campanulate, 5–6 mm. Phyllaries (in 3–4 series) lanceolate, unequal (midnerves swollen), acute to acuminate (tips dark green). Ray florets 8–10(–15); laminae 2–3.5 mm. Disc florets 20–60; corollas 3.5–4.5 mm, lobes 1.5–2 mm. Cypselae 2–3 mm, sparsely strigose to glabrate; pappi (of 12–22 bristles) about 3 mm. 2n = 54.

Aster spithamaeus (M. A. Curtis ex A. Gray) Kuntze

Solidago spithamaea là một loài thực vật có hoa trong họ Cúc. Loài này được M.A.Curtis miêu tả khoa học đầu tiên.