Heteranthera dubia, the water stargrass and grassleaf mudplantain, an aquatic plant species
Lindernia dubia | Nepenthes dubia | ''Lindernia dubia'' var. ''inundata'' | Thladiantha dubia | Sepia dubia | Myrciaria dubia | Monactis dubia | Heteranthera dubia |
Lindernia dubia, the yellowseed false pimpernel or moist bank pimpernel, a flowering plant species
Monactis dubia, a flowering plant species found only in Ecuador
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Myrciaria dubia, the camu camu, Camucamu, cacari or camocamo, a small bushy river side tree species
Specimens of a putative natural cross between N. dubia and N. jacquelineae have also been recorded.
Sepia dubia, a cuttlefish species native to the southeastern Atlantic Ocean
Thladiantha dubia, the goldencreeper, Manchu tuber-gourd, wild potato, thladianthe douteuse, a fieldweed and a rarely used ornamental plant species