adder[s_tongue (HyperDic hyper-dictionary)

English > 1 sense of the expression *adder's tongue*:
NOUN	plant	adder's tongue, adder's tongue fern	ferns with fertile spikes shaped like a snake's tongue

English > *adder's tongue*: 1 sense > noun 1, plant
Meaning	ferns with fertile spikes shaped like a snake's tongue.
Synonym	adder's tongue fern
Member of	Ophioglossum, genus Ophioglossum	The type genus of the fern family Ophioglossaceae
Narrower	ribbon fern, Ophioglossum pendulum	epiphytic fern with straplike usually twisted fronds of tropical Asia and Polynesia and America
Broader	fern	Any of numerous flowerless and seedless vascular plants having true roots from a rhizome and fronds that uncurl upward

HyperDic: adder[s_tongue