Assertion: ragwort's petal | /r/HasProperty | st. john’s wort
Facets:
Source sentences:
text: Each flower has about 13 petals which helps to distinguish it from two other weeds that are similar in appearnce; St. John’s Wort, which has only 5 petals per flower, and Common Tansy, which has button-like flowers with no outer ray petals.