
Flower profile
Cucumberleaf sunflower
Helianthus debilis
Cucumberleaf sunflower is a wildflower that USDA PLANTS lists as native in the lower 48 states. In Florida it's most often seen in bloom in January–December.
*iNaturalist research-grade observations, as of October 17, 2026.
On our lists for: Florida
Quick look
Helianthus debilis is a species of sunflower known by the common names cucumberleaf sunflower, beach sunflower, weak sunflower, East Florida beach sunflower, and East Coast dune sunflower. It is native to the United States, where it can be found along the Atlantic and Gulf Coasts. It is known elsewhere as an introduced species, such as South Africa, Australia, Taiwan, Slovakia, and Cuba.
- It belongs to the Asteraceae family. iNaturalist
- USDA PLANTS describes it as an herb (forb) with a annual, perennial life cycle. USDA PLANTS
- USDA PLANTS lists it as native in the lower 48 states and records it in 19 states. USDA PLANTS
- NatureServe lists it as native to Florida. NatureServe
- In Florida, most iNaturalist sightings of it in flower come in January–December. iNaturalist
- USDA PLANTS lists its flower color as yellow. USDA PLANTS
- USDA PLANTS gives its bloom period as summer. USDA PLANTS
- USDA PLANTS lists a mature height of about 0.5 ft. USDA PLANTS
- iNaturalist has 6,922 research-grade sightings of it in Florida, ranking #16 among the 110 flowers on our Florida list. iNaturalist
Cucumberleaf sunflower gift ideas
Handmade cucumberleaf sunflower gifts from independent makers.
🌱 Sample spot. Handmade gift picks from independent shops will appear here once our shop partnership is approved. These cards are placeholders, not real products.
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Cucumberleaf sunflower art print
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Cucumberleaf sunflower greeting card
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Cucumberleaf sunflower mug
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Cucumberleaf sunflower earrings
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Cucumberleaf sunflower embroidery pattern
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Cucumberleaf sunflower sticker
When does it bloom?
In Florida, most flowering sightings come in January–December.
Conservation status
- Federal (U.S. ESA)
- Not listed No U.S. Endangered Species Act listing in the USFWS ECOS database. USFWS ECOS
- NatureServe global
- G5 Secure worldwide. NatureServe
- Florida
- Not listed Not on Florida Regulated Plant Index (Fla. Admin. Code 5B-40.0055). NatureServe: SNR, not yet ranked in Florida. FAC 5B-40.0055
- Rare elsewhere
- Other states where NatureServe ranks it rare or missing: WV (SH). (S1 critically imperiled, S2 imperiled, SH possibly extirpated, SX presumed extirpated.)
Checked October 17, 2026. Rankings and lists can change, so follow the links for the latest.
Can you eat it?
None of the sources we checked (NC State Extension (no page for this plant), USDA PLANTS) say whether it's edible or poisonous for people.
It isn't on the ASPCA plant list. For context only: ASPCA lists a related species, Helianthus angustifolius (“Sunflower”), as non-toxic to dogs and cats. That doesn't tell us about this species, so keep pets away to be safe. ASPCA
🌿 Never eat a wild plant unless you're certain of its ID; this isn't medical advice. Worried about a person? Call Poison Control at 1-800-222-1222. Worried about a pet? Call your vet.
Where does it grow?
USDA PLANTS records cucumberleaf sunflower in 19 states.
recorded by USDA PLANTS on our state lists not recorded
See the full list of states
Alabama, Connecticut, Florida, Georgia, Louisiana, Maine, Maryland, Massachusetts, Michigan, Mississippi, New Hampshire, North Carolina, Pennsylvania, Rhode Island, South Carolina, Texas, Vermont, Virginia, West Virginia.
Florida counties with USDA records: Bay, Brevard, Broward, Charlotte, Columbia, Escambia, Flagler, Franklin, Gulf, Hillsborough, Indian River, Jackson, Lake, Lee, Levy, Madison, Manatee, Martin, Miami-Dade, Orange, Palm Beach, Pinellas, Sarasota, St. Johns, St. Lucie, Volusia, Wakulla.
More Florida flowers
Sources
- USDA, NRCS. PLANTS Database, profile HEDE4.
- iNaturalist, Helianthus debilis: taxonomy, research-grade observation counts and “Flowering” annotations, retrieved October 17, 2026.
- Wikipedia, Helianthus debilis (lead quoted under CC BY-SA 4.0).
- Florida: Florida Regulated Plant Index (Fla. Admin. Code 5B-40.0055).
- Florida: Florida Noxious Weed List (Fla. Admin. Code 5B-57.007).
- USFWS, ECOS species database (ESA listing check), October 17, 2026.
- NatureServe Explorer, Helianthus debilis (global and state ranks).
- Edibility and toxicity: ASPCA.
- Photo: Even Dankowicz via iNaturalist · CC BY 4.0 · resized.


