squamous

suomuinen Covered with, made of, or resembling scales; scaly.
1658, Sir Thomas Browne, The Garden of Cyrus (Folio Society 2007), page 180

In the squamous heads of Scabius, Knapweed, and the elegant Jacea Pinea, and in the Scaly composure of the Oak-Rose, which some years most aboundeth.

I might call it gigantic - tentacled - proboscidian - octopus-eyed - semi-amorphous - plastic - partly squamous and partly rugose - ugh!

We spread the papers on the least squamous section of the floor and lay down; the smell was not so bad at ground level.

(And we'll never find out whether the last thought to pass through the mind of the captain of the Thresher was, "It's squamous and rugose," or simply, "It's squamous!")