Flora of North America species comparison

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Phoebanthus grandiflorus

Florida false sunflower
Habit Perennials, 50–100+ cm (tubers 2–10 cm).
Leaves

mostly alternate, sometimes proximal opposite;

blades linear to linear-lanceolate, the larger 2–7 cm × 3–7 mm.
Involucres

hemispheric, 10–12 × 12–20 mm.
Ray laminae

20–40 mm.
Disc florets

50+;

corollas 5–7 mm.
Phyllaries

appressed.
Cypselae

3.5–4.5 mm;

pappi 0 or of 1(–2) lacerate scales 0.4–2 mm plus 0–2 scales 0.2–0.5 mm.
Paleae

10 × 2 mm (lateral lobes nearly equaling central lobe).
2n

= 68.

Phoebanthus grandiflorus
Phenology Flowering Mar–Nov.
Habitat Sandhills, pine flatwoods
Elevation 10–30+ m (0–100+ ft)
Distribution
from FNA
FL
[WildflowerSearch map]
[BONAP county map]
Discussion

Phoebanthus grandiflorus is known only from peninsular Florida.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 21, p. 113.
Parent taxa Asteraceae > tribe Heliantheae > subtribe Ecliptinae > Phoebanthus
Sibling taxa
P. tenuifolius
Synonyms Helianthella grandiflora
Name authority (Torrey & A. Gray) S. F. Blake: Proc. Amer. Acad. Arts 51: 520. (1916)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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