TROPICAL PLANT ENCYCLOPEDIA
Helianthus debilis
Beach Sunflower, Dune SunflowerFamily: Asteraceae
Origin: North America
USDA Plant Hardiness Zone Map
It is an excellent salt-tolerant groundcover with very nice flowers that provides pollinating sources for some insects. Drought-tolerant; suitable for xeriscaping.
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Link to this plant:
https://toptropicals.com/catalog/uid/helianthus_debilis.htm