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GROWTH HABIT: Perennial herb, up to 24" tall, erect, becoming lodged with age.
LEAVES: Alternate, lance-shaped and slightly irregular, greyish-green, base of upper leaves clasping stem.
STEMS: Stoutish, branched toward top.
FLOWERS: Small, white 4 petals; numerous flower branches and dense flowers give plant a dense, white, flat-topped appearance.
ROOTS: Extensive horizontally and vertically, frequent shoots arising from root stocks.
SEEDS: Reddish-brown, granular, egg-shaped, contained in heart-shaped pods.
OTHER: Flowers early (April and May), reproduces by seeds, root stocks and creeping roots.
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