allseed
noun› Any of several plants, not closely related…
1
allseed flax (Radiola linoides)
2
fourleaf allseed (Polycarpon tetraphyllum)
3
knotweed (Polygonum spp.)
4
many-seeded goosefoot (Lipandra polysperma, syn. Chenopodium polyspermum)
Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.