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Arachis will find all items including that sequence of letters.
Search results for "Arachis":
"Arachis chacoense" - Arachis diogoi
"Arachis fruticosa" - Stylosanthes fruticosa
"Arachis hypogaea subsp. sylves" - Arachis sylvestris
"Arachis villosa var. correntin" - Arachis correntina