lesser spearwort: semiaquatic Eurasian perennial crowfoot with leaves shaped like spears; naturalized in New Zealand
marsh plant: a semiaquatic plant that grows in soft wet land; most are monocots: sedge, sphagnum, grasses, cattails, etc; possibly heath
satin weave: a weave in which the filling and warp threads intersect in such a way as to give a smooth compact surface with no distinguishable twill line