Phoebanthus tenuifolius

(Torrey & A. Gray) S. F. Blake

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
Treatment appears in FNA Volume 21. Treatment on page 114. Mentioned on page 113.

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.
... more about "Phoebanthus tenuifolius"
Edward E. Schilling +
(Torrey & A. Gray) S. F. Blake +
Helianthella tenuifolia +
Pineland false sunflower +
Ala. +  and Fla. +
10–30+ m +
Sandhills, flatwoods +
Flowering May–Sep. +
Proc. Amer. Acad. Arts +
Undefined (tribe Undefined) subtribe Enceliinae +, Undefined (tribe Undefined) subtribe Engelmanniinae +, Undefined (tribe Undefined) subtribe Spilanthinae +, Undefined (tribe Undefined) subtribe Verbesininae +  and Undefined (tribe Undefined) subtribe Zinniinae +
Phoebanthus tenuifolius +
Phoebanthus +
species +