Learner's definition of MANIFEST. [more manifest; most manifest] formal. 1. : able to be seen : clearly shown or visible. Their sadness was manifest in their faces. His love for literature is manifest in his large library. There was manifest confusion in the streets. The truth was manifest [=(more commonly) obvious] to everyone but me.
From Wikipedia, the free encyclopedia. Convolvulus arvensis (field bindweed) is a species of bindweed in the morning glory family (Convolvulaceae), native to Europe and Asia. It is a climbing or creeping herbaceous perennial plant growing to 0.5â2 m high. There are two varieties: Convolvulus arvensis var. arvensis.
Japanese knotweed, an escaped ornamental, is a shrubby perennial that was first introduced in the United States from Asia. It grows very aggressively along roadways, neglected gardens, streambeds, and in moist, wet places.o stop the spread of Japanese knotweed, care must be taken to prevent new plants from becoming established. New growth can sprout easily from very small fragments left behind, so when working to control or remove the plant make sure that all plant material is removed and then burned or dried.