Squarrose \Squar*rose"\ (? or ?; 277), a. [L. squarrosus (perhaps) scurfy, scabby.]

Ragged or full of lose scales or projecting parts; rough; jagged; as:
   (a) (Bot. & Zo["o]l.) Consisting of scales widely divaricating; having scales, small leaves, or other bodies, spreading widely from the axis on which they are crowded; -- said of a calyx or stem.
   (b) (Bot.) Divided into shreds or jags, raised above the plane of the leaf, and not parallel to it; said of a leaf.
   (c) (Zo["o]l.) Having scales spreading every way, or standing upright, or at right angles to the surface; -- said of a shell.

Squarrose-slashed (Bot.), doubly slashed, with the smaller divisions at right angles to the others, as a leaf. --Landley.

Source: Webster's Revised Unabridged Dictionary (1913)