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.
1 Spotted knapweed is a biennial member of the Sunflower Family (Asteraceae). 2  This plant can be distinguished from its close relative Diffuse knapweed, by the lack of a terminal spine at the tip of its bracts.3  Although heavy in some parts of Colorado, this plant has not yet invaded some areas of the state.istribution: Spotted knapweed infestations are not as severe in Colorado as diffuse knapweed (Beck 1997). However, this weed spreads rapidly and is quickly becoming more common. In Colorado, it is commonly found between 4,000 to 6,000 feet, but has been found as high as 10,000 feet (A. Green, pers. comm.).