Bisnaga may refer to:
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''Bisnaga'' (cactus), a genus of large, barrel-shaped cacti
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Bisnaga (herb)
''Visnaga daucoides'' is a species of flowering plant in the carrot family known by many common names, including toothpick-plant, toothpickweed, bisnaga, khella, or sometimes bishop's weed. It is native to Europe, Asia, and North Africa, but it ...
, a species of flowering plant
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Kingdom of Bisnaga, a South Indian empire
{{disambig, plant