Copy permalink to share
Asteraceae
Helianthus

not marked as a favorite taxon Helianthus radula (Pursh) Torrey & A. Gray. Common name: Roundleaf Sunflower, Rayless Sunflower. Phenology: Late Aug-Oct. Habitat: Longleaf pine sandhills and dryish savannas, and dry pine flatwoods. Distribution: S. SC south to s. peninsular FL and west to se. LA

Glossary (beta!)

ID notes: It is readily distinguishable from all other species of Helianthus by its rosette of orbicular to nearly round leaves, borne flat against the ground.

Origin/Endemic status: Endemic

Synonymy ⓘ: = Fl7, FNA21, GW2, K4, RAB, S, SE1, WH3; Rudbeckia radula Pursh. Basionym: Rudbeckia radula Pursh 1814

Links to other floras: = Helianthus radula - FNA21

Show in key(s)

Show parent genus | Show parent in key(s)

Wetland Indicator Status:

  • Atlantic and Gulf Coastal Plain: FAC

Heliophily ⓘ: 9

Your browser does not support SVGs

Hover over a shape, letter, icon, or arrow on the map for definition or see the legend.

image #1 of Helianthus radula© Keith Bradley | Original Image ⭷
image #2 of Helianthus radula© Scott Ward | Original Image ⭷
image #4 of Helianthus radula© Scott Ward | Original Image ⭷
image #5 of Helianthus radula© Alan Weakley source | Original Image ⭷

Feedback

See something missing or incorrect about Helianthus radula? Let us know here:
  1. Please include your name and if possible, email in case when need to clarify what you wrote.
  2. If you opt out of including email, please be as specific as possible (e.g., which photo is incorrect?)
  3. Please do not submit questions asking to identify plants or about horticultural topics (e.g., how do I control an invasive plant in my garden?). Instead, those questions can be submitted here for the Carolinas region only.
  4. Please do not send us feedback about unkeyed species as this work is ongoing.
  5. Please allow time for flora edits to show in our next data release. We greatly appreciate your feedback but may require extra time to research complicated taxonomic issues.

Horticultural Information

NCBG trait

Intro:

Stems:

Leaves:

Inforescence:

Flowers:

Fruits:

Comments:

Height:

plant sale text:

bloom table text:

description:

stems:

leaves:

inflorescence:

flowers:

fruits:

comments:

cultural notes:

germination code:

native range:



0 unsaved edits on this page.