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*Brassica napus Linnaeus. Rutabaga, Rape, Canola, Colza, Swede. Phen: May-Jul. Hab: Fields, disturbed areas. Dist: Native of Eurasia.

Origin/Endemic status: Eurasia

Taxonomy Comments: This species is apparently a recently derived polyploid (n=19) of B. oleracea (n=9) and B. rapa (n=10).

Other Comments: The seeds of this species are the source of ‘canola’ oil, the name coined by marketers from ‘Canadian’ + ‘oil’+ ‘low’ + ‘acid’ to avoid the negative connotation of the ancient name ‘rape’.

Synonymy: = Ar, Fl4, FNA7, GrPl, Il, K1, K3, Mi, NE, NY, Tn, W, WH3, Al-Shehbaz (1985b), Rollins (1993); = n/a – C, Pa, Tat; > Brassica napobrassica (L.) Mill. – F; < Brassica napus L. – RAB; > Brassica napus L. – F

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Heliophily: 9

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image of plant© Alan Cressler: Brassica napus, along Highway 90 southeast of Montezuma, Macon County, Georgia 1 by Alan Cressler source | Original Image ⭷


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