inflorescence with small flowers of bistorta vivipara, alpine bistort, is slow-growing and produces embryonic buds

biodiversity bistorta vivipara europe persicaria polygonaceae polygonum viviparum alpine bistort biology blooming botany ecology edible flower green habitat herbaceous inflorescence nature perennial plant plants rhizomatous short grassland starch tiny vegetation yards flowering knotweed buckwheat family small flowers common high arctic white pink lower replaced bulbs rarely produce viable seeds slow-growing produces embryonic buds bulbs Scandinavian