B. lutea

B. lutea may refer to:


 * Banisteriopsis lutea, a psychoactive plant
 * Beatonia lutea, a South American plant
 * Besleria lutea, a plant with small seeds
 * Betula lutea, a birch native to eastern North America
 * Blepharoneura lutea, a fruit fly
 * Bomarea lutea, a plant endemic to Ecuador
 * Borsonia lutea, a sea snail
 * Botryosphaeria lutea, a sac fungus
 * Brodiaea lutea, a plant native to the United States
 * Brontypena lutea, an owlet moth
 * Brugmansia lutea, a South American plant