*Brassica rapa Linnaeus. Turnip, Bird's-rape, Field Rape, Field Mustard, Bok-choy, Chinese Cabbage. Phen: Mar-Jun. Hab: Fields, disturbed areas. Dist: Native of Europe.

Origin/Endemic status: Eurasia

Taxonomy Comments: B. rapa is cultivated in a variety of forms, these sometimes given varietal rank, such as B. rapa var. chinensis (Linnaeus) Kitamura (Bok-choy or Pak-choi) and B. rapa var. amplexicaulis Tanaka & Ono (Chinese Cabbage). They are probably best regarded as cultivars.

Synonymy: = Ar, C, F, FNA7, Il, Mi, NcTx, NE, NY, Pa, Tn, Al-Shehbaz (1985b), Rollins (1993); > Brassica campestris L. – G, GrPl, S, S13, Tat, Tx; > Brassica napus L. – RAB; > Brassica rapa L. – G, GrPl, Tx; > Brassica rapa L. var. amplexiaculis Tanaka & Ono; > Brassica rapa L. var. chinensis (L.) Kitam. – K4; > Brassica rapa L. var. rapa – K1, K3, K4, Va, WH3

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Wetland Indicator Status:

• Atlantic and Gulf Coastal Plain: UPL
• Eastern Mountains and Piedmont: UPL
• Great Plains: UPL
• Midwest: UPL
• Northcentral & Northeast: UPL

Heliophily: 9