Triticum compactum or incomplete specimen. As a general rule, if a naked wheat, wheat with round grains and irregularly broken rachis forming internodes, is uncovered in a European site, excluding all sites on the Italian or Balkan peninsulas, it should be considered a hexaploid club wheat (either "T. aestivum" or "T. compactum" ). If such wheat has short internodes it should be identified as "T. compactum". "Triticum compactum" generally flowers during the months of June and July with its seeds ripening in August and September. "Triticum compactum" is an annual plant growing to heights of approximately 0.6 meters in the summer and
Cover crop ("Sinapis alba") and radish ("Raphanus sativus"). They can be grown after a main (cereal) crop and trap nematodes, for example the beet cyst nematode and Columbian root knot nematode. When grown, nematodes hatch and are attracted to the roots. After entering the roots they cannot reproduce in the root due to a hypersensitive resistance reaction of the plant. Hence the nematode population is greatly reduced, by 70-99%, depending on species and cultivation time. Other cover crops are used to attract natural predators of pests by providing elements of their habitat. This is a form of biological control known as habitat