soldering bolt (so dering bolt)

Same as soldering - iron. with fringed lobes, five stamens inserted on thesforolla, and an ovoid ovary which becomes a circumsci ile sule with a five to ten-toothed mouth, containing many seeds on an elongated central placenta. There are 4 species, alpine plants of Europe. They are smooth, delicate, stemle herbs, growing from a short perennial rootstock, and bearing long-stalked, fleshy, and entire roundish leaves with a heart-shaped base. The nodding flowers, single or umbeled, are borne on a slender scape, and are blue, violet, rose-colored, or rarely white. S. alpina, growing near the snow-line on many European mountains, is, with other species, sometimes cultivated under the name soldanel or soldanelle, and has been also called blue moonwort.