Taxon: Brassica rapa L. var. sylvestris Purchas & Ley

Synonym of Brassica rapa subsp. oleifera

Genus: Brassica
Family: Brassicaceae (alt.Cruciferae)
      Tribe: Brassiceae
Nomen number: 105435
Place of publication: Fl. Herefordshire 20. 1889 (T. A. R. Briggs, Fl. Plymouth 20. 1880, nom. inval.)
Comment: since a description or diagnosis was not provided by Purchas & Ley, this variety is solely based on the cited "Brassica polymorpha, subspecies campestris, of Eng. Bot., Ed. iii", which itself is based on B. campestris L. It cannot be considered to be based on B. asperifolia var. sylvestris Lam. (Encycl. 1:746. 1785), as assumed by Thellung (in Hegi, Ill. Fl. Mitt.-Eur. 4(1):259. 1918), since Lamarck excluded the Linnaean type from his taxon by including it elsewhere (B. perfoliata var. lutea Lam. p. 748) and the two names cannot be homotypic. Since the autonym B. campestris var. campestris already existed (at least since 1854 in Hartman, Handb. Skand. fl. ed. 6:110) and should have been adopted at this rank, var. sylvestris is illegitimate (Melbourne ICN Art. 52). No description or diagnosis or reference to one was provided by Briggs in 1880.
Name Verified on: 09-Feb-2012 by ARS Systematic Botanists. Last Changed: 21-May-2013
Species priority site is:
Accessions: 0 in National Plant Germplasm System


  • Erhardt, W. et al. Der große Zander: Enzyklopädie der Pflanzennamen. 2008 (Zander Ency)
  • Hanelt, P., ed. Mansfeld's encyclopedia of agricultural and horticultural crops. Volumes 1-6. 2001 (Mansf Ency)
  • Hegi, G. et al. 1986. Illustrierte Flora von Mittel-Europa. ed. 1:1906-1931; ed. 2:1936-68; ed. 3:1966- (IllF MEur) 4(2):456.
  • Mansfeld, R. Die Kulturpflanze, Beiheft 2. 1959 (Mansfeld)
  • Olsson, G. 1954. Crosses within the campestris group of the genus Brassica Hereditas (Beijing) 40:414.

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