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.
... more about "Phoebanthus tenuifolius"
introrse +
connate +
herbaceous +
scarious +
absent +
hirsute +
papillate +
bristlelike +
continuous +
linear-filiform +
larger +
winged;ribbed;winged;ribbed +
1;15 +
stigmatic +
absent +
Pineland false sunflower +
zygomorphic +
yellow +
winged +
dimorphic +
3.5mm;4mm +
staminate +
staminate +
sessile +
alternate +
straight +
distinct +
proximal +
1;5 +
bisexual +
dispersed +
singly +
discoid +
singly +
indeterminate +
surrounding +
campanulate;hemispheric +
cauline +
triangular +
2-carpellate +
inferior +
attached +
anatropous +
1.5mm;2mm +
persistent +
fragile +
falling +
absent +
lacerate +
tough +
thick +
absent +
connate +
persistent +
distinct +
falling +
spreading +
opposite +
Proc. Amer. Acad. Arts +
1916 +
neuter +
absent +
paleate +
convex +
fibrous +
lacerate +
exalbuminous +
modifed +
2;3 +
bristlelike +
Endemic +
alternate +
branched +
erect +
continuous +
2-branched +
papillate +
Phoebanthus tenuifolius +
Phoebanthus +
species +
campanulate +
shorter +
cylindric +
shorter to longer than campanulate +
perennial +