Definition of leadwort:
(n) :
Any of various maritime herbs of the genus Plumbago, some of which have lead-coloured spots on the leaves or nearly lead-coloured flowers.
(n) :
Plants in family Plumbaginaceae
(n) :
Any of various plants of genus Ceratostigma.
(n) :
A leadplant, a leguminous shrub of species Amorpha canescens,) of the western U.S. that has hoary pinnate leaves and bears dull-colored racemose flowers; supposed to help locate lead deposits.
(n) :
Diverse plants that tolerate high levels of lead, such as spring sandwort (Sabulina verna subsp. verna, syn. Minuartia verna) and alpine pennycress (Noccaea caerulescens, syn. Thlaspi caerulescens).
(n) :
especially, of species Plumbago europaea, of southern Europe, north Africa, the eastern Mediterranean, and Armenia.