acerate leaf(n = noun.plant) needle - the leaf of a conifer;
is a kind of simple leaf

abruptly-pinnate leaf, acerate, acuminate leaf, amplexicaul leaf, bay leaf, bible leaf, bijugate leaf, bijugous leaf, bipinnate leaf, birch leaf miner, compound leaf, cordate leaf, crenate leaf, cuneate leaf, decompound leaf, deltoid leaf, dentate leaf, denticulate leaf, elliptic leaf, elongate leaf, emarginate leaf, ensiform leaf, entire leaf, erose leaf, even-pinnate leaf, fig leaf, flannel leaf, floral leaf, four-lined leaf bug, gold leaf, hastate leaf, japanese leaf, lanceolate leaf, leaf, leaf beet, leaf beetle, leaf blade, leaf blight, leaf bud, leaf bug, leaf cast, leaf cutter, leaf disease, leaf fat, leaf form, leaf insect, leaf lard, leaf lettuce, leaf miner, leaf mold, leaf mould, leaf mustard, leaf out, leaf roller, leaf scorch, leaf shape, leaf soil, leaf spring, linear leaf, lion's leaf, lobed leaf, lyrate leaf, oak leaf, oak leaf cluster, oblanceolate leaf, oblong leaf, obovate leaf, obtuse leaf, odd-pinnate leaf, orbiculate leaf, ovate leaf, paint leaf, painted leaf, palmate leaf, pandurate leaf, panduriform leaf, parallel-veined leaf, parted leaf, pedate leaf, peltate leaf, perfoliate leaf, pine leaf aphid, pinnate leaf, prickly-edged leaf, quinquefoliate leaf, reniform leaf, runcinate leaf, sagittiform leaf, satin leaf, scale leaf, seed leaf, serrate leaf, simple leaf, spatulate leaf, sumatra leaf, tansy leaf aster, tea leaf, trifoliolate leaf, turn over a new leaf, walking leaf