Phoebanthus tenuifolius
Proc. Amer. Acad. Arts 51: 520. 1916.
Common names: Pineland false sunflower
Endemic
Basionym: Helianthella tenuifolia Torrey & A. Gray Fl. N. Amer. 2: 333. 1842
Perennials, 40–100+ cm (tubers 2–4 cm). Leaves all opposite, or opposite and alternate, or all alternate; blades linear-filiform, the larger 3–7 cm × 0.5–2 mm. Involucres campanulate to hemispheric, 10–12 × 10–15 mm. Paleae 7–8 × 1.5–2 mm (central lobes usually longer than lateral lobes). Phyllaries spreading. Ray laminae 20–40 mm. Disc florets 40+; corollas 4–5 mm. Cypselae 3.5–4 mm; pappi of 1–2, lacerate scales 0.2–2 mm plus 0–4 scales 0.2–0.3 mm. 2n = 34.
Phenology: Flowering May–Sep.
Habitat: Sandhills, flatwoods
Elevation: 10–30+ m
Discussion
Phoebanthus tenuifolius in known from southeastern Alabama and the panhandle of Florida.
Selected References
None.
Lower Taxa
None.