Someone searched for palytrichum. Which moss is that?
heard as palytrichum
spelled polytrichum
Polytrichum, the haircap moss. The first syllable is pol-, from the Greek polys.
What the ear did
The stress sits on the third syllable, TRIK, and everything before it is said quickly. A weak first vowel can be written down as almost anything, and a is the commonest guess in English.
P-O-L-Y-T-R-I-C-H-U-M
The full entry for polytrichum covers the name itself.