Cordylanthus rigidus subsp. littoralis merupakan tumbuhan semusim dari famili Orobanchaceae. Tumbuhan ini berasal dari bioma beriklim subtropis di wilayah California barat. Nama ilmiah Cordylanthus rigidus subsp. littoralis mulai dipublikasikan pada tahun 1986.
POWO (2024). "Plants of the World Online. Facilitated by the Royal Botanic Gardens, Kew. Published on the Internet; https://powo.science.kew.org/."
IPNI (2024). "International Plant Names Index. Published on the Internet http://www.ipni.org, The Royal Botanic Gardens, Kew, Harvard University Herbaria & Libraries, and Australian National Herbarium"
USDA - NRCS (2024). "United States Department of Agriculture - Natural Resources Conservation Service", Plant Profile.
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