bladder campion
Noun
Meaning
bluish-green herb having sticky stems and clusters of large evening-opening white flowers with much-inflated calyx; sometimes placed in genus Lychnis
perennial of Arctic Europe having large white flowers with inflated calyx
Source: WordNetSynonyms
evening lychnis
Lychnis alba
Silene latifolia
white campion
Silene uniflora
Silene vulgaris
white cockle
catchfly