spikemoss vs spike moss

spikemoss and spike moss both are nouns.

Word	Noun	Adjective	Verb	Adverb
spikemoss	Yes	No	No	No
spike moss	Yes	No	No	No

As nouns, spikemoss and spike moss are synonyms defined as:

spikemoss and spike moss: any of numerous fern allies of the genus Selaginella

Other synonyms of spikemoss include little club moss.

spikemoss (noun)	spike moss (noun)
any of numerous fern allies of the genus Selaginella	any of numerous fern allies of the genus Selaginella