17. Liatris tenuifolia Nuttall, Gen. N. Amer. Pl. 2: 131. 1818.
Pine-needle or shortleaf gayfeather
Lacinaria tenuifolia (Nuttall) Kuntze
Plants 40–150 cm. Corms globose. Stems glabrous or sparsely pilose. Leaves: basal and proximal cauline (arising from separated nodes) 1-nerved, linear to linear-lanceolate, 100–300 × 1–2(–2.5) mm, gradually or abruptly reduced distally, essentially glabrous, gland-dotted (proximal margins sometimes ciliate). Heads in compact, racemiform arrays. Peduncles (ascending) 1–7 mm. Involucres turbinate-campanulate, 5–7 × 4–5 mm. Phyllaries in 2–3(–4) series, lanceolate to oblong or elliptic-oblong, unequal, essentially glabrous, margins with (pinkish purple) hyaline borders, apices usually rounded-retuse and minutely involute-cuspidate to apiculate. Florets 4–6; corolla tubes glabrous inside. Cypselae 2.5–4 mm; pappi: lengths ± equaling corollas, bristles barbellate.
Flowering Aug–Nov. Longleaf pine savannas, longleaf pine-scrub oak, turkey oak-bluejack oak, slash pine-sand pine-scrub, sand pine-scrub, sand ridges, hills, and flats, roadsides; 10–100 m; Ala., Fla., Ga., S.C.