Home › Words › S › sumpweedsumpweedsumpweed means iva annua, annual marsh elder, a North American herbaceous annual plant in the sunflower family.EtymologyFrom sump + weed.nounIva annua, annual marsh elder, a North American herbaceous annual plant in the sunflower family.Chorisiva nevadensisDefinitions & examples from Wiktionary (CC BY-SA 3.0).Words closest in meaningBy meaning, not spelling — each word's AI semantic fingerprint, nearest first.squawweed 57% match — Any of several species of plants of North America:; golden ragwort (Packera aurea, syn. Senecio aureus) vs sumpweed →pinweed 57% match — Any of the genus Lechea of low North American herbs with branching stems, and very small and abundant leaves and flowers. vs sumpweed →spiritweed 57% match — The perennial herb Eryngium foetidum. vs sumpweed →arrowweed 56% match — Pluchea sericea, a North American shrub. vs sumpweed →dogfennel 56% match — Anthemis cotula, an annual plant native to Europe and North Africa. vs sumpweed →dogweed 56% match — Any plant of the genus Adenophyllum. vs sumpweed →burnweed 56% match — Any of the flowering plants of the genus Erechtites. vs sumpweed →featherweed 55% match — The flowering plant Gamochaeta ustulata in the sunflower family. vs sumpweed →