The term adder's tongue fern is identified in base64 scheme by the sequence YWRkZXIncyB0b25ndWUgZmVybg==, while the MD5 signature is equal to a5d5dd5139fdba128a73757b19fb764b. The ASCII encoding of adder's tongue fern in hexadecimal notation is 6164646572277320746f6e677565206665726e.