Sentence:  Three chairs of the steamer type, all maimed, comprised the furniture of this roof-garden, with...on one of the copings a row of four red clay flower-pots filled with sun-baked dust from which gnarled and <WSD>rusty</WSD> stalks thrust themselves up like withered elfin limbs. 
Meaning of the word marked with <WSD> tags:  Of the rust color, reddish or reddish-brown. (from 14th c.)