B. juncea

B. juncea may refer to:


 * Baccharis juncea, a New World plant
 * Baumea juncea, a rhizomatous herb
 * Bebbia juncea, an aromatic shrub
 * Belonogaster juncea, a paper wasp
 * Bouteloua juncea, a true grass
 * Brassica juncea, a mustard plant