Young-Mathews, 2013. USDA-NRCS, Plant Materials Center, USA Document reference Young-Mathews, A, 2013. Plant guide for crimson clover (Trifolium incarnatum). USDA-NRCS, Plant Materials Center, USAWeb http://plants.usda.gov/plantguide/pdf/pg_trin3.pdfCitation key Young-Mathews, 2013Datasheets Crimson clover (Trifolium incarnatum)
