cape, = Cape of Good Hope;
-ensis, = indicates country or place of growth, or origin or else habitat.
(pertaining to the Cape of Good Hope; Cape Peninsula) (BL)
frutex, = a shrub, bush;
-escens, = indicates process of becoming, hence not fully achieved resemblance, often expressed by the termination ‘-ish’.
frutesco, = to put forth shoots, to sprout, become bushy.
(becoming shrubby) (ld, BL)