kindling wood (dead brush etc.)

kindling, firewood

leftovers from soup, driftwoon, brushwood

meat, placenta; woodchip, thorn, brushwood, straw; idiomatic none (as in no importance)

small amounts of brushwood washed up by the waves on the shore

twig, brushwood, rod; sprout, blade of grass, straw, litter, garbage, trash

brushwood, undergrowth