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                    U.S. DEPARTMENT OF AGRICULTURE
 Plant Genetic Resources Unit (PGRU): Geneva, NY
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Brassica Collectionheadline bar USDA *Brassica* Collection /ARSUserFiles/80600500/Broccoli_multiFig_Stansell.png *Some brassica oleracea var. italica cultivars and landraces (Stansell and Björkman, 2020).***   *Brassica*spp.are members of the family Brassicaceae, consisting of over 350 genera. The *Brassica*genus consists of many species including *napus*(rutabaga and rape), *oleracea*(broccoli, cabbage, kale, etc.), and *rapa*(turnip and Chinese cabbage).  *Brassica* spp. are often biennial crops which require two seasons to produce seed. ​There are**over 2100 active accessions**in the PGRUBrassicacollection. We house**68 different botanical classes**, with the most common being: *oleracea*var.*capitata***(red/white/green cabbage),*oleracea*var.*botrytis* (cauliflower),*rapa*subsp. *p**ekinensis*(napa cabbage), and*oleracea*var.*viridis*(collard). The collard collection was saved from seed-savers in the Southeastern United States by USDA-ARS scientist Mark Farnham and others. Read about some fascinating research evaluating the genetic diversity and breeding work done with the *viridis*collection! Ourbrassicacollection spans many decades, with our oldest accession added in 1936 and our newest addition from 2021. In our collection, a majority of our crops come from Asia.   Looking for plant germplasm? Review our distribution policy for germplasm requests For more information on growing practices, head to the BRASSICA production page or visit the BRASSICA crop page in GRIN-Global to find citations, descriptor data, and genetic markers. Interested in the future of Brassica? Read about our current research on theirpotential in vertical farming systems or learn more about the genomic and morphological domestication syndrome in Brassica! Contact zachary.stansell@usda.gov for more information.   **PGRU Brassica Accession Distribution****1987-2021**  Data from GRIN-Global


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