Crepis virens (Hawk’s Beard, aka garden weed). Flora Batava (Plants of the Netherlands, 1877), Vol. 15. 
Crepis Virens: “Crepis, Pliny, is from the Greek crepis, a kind of boot; and the second Latin name means green, fresh. It was called Hawkbit because the hawk was supposed to pluck it and smear its eyes with it to improve its vision.” ~British Wildflowers in Their Natural Haunts (1919)

Crepis virens (Hawk’s Beard, aka garden weed). Flora Batava (Plants of the Netherlands, 1877), Vol. 15. 

Crepis Virens: “Crepis, Pliny, is from the Greek crepis, a kind of boot; and the second Latin name means green, fresh. It was called Hawkbit because the hawk was supposed to pluck it and smear its eyes with it to improve its vision.” ~British Wildflowers in Their Natural Haunts (1919)

Wildflowers Every Child Should Know (1909) by Frederic William Stack. Stack was a field collector for the Scientific Section, Vassar Brothers Institute; and Natural History at Vassar College. 
To my bonny boy, whose many inquiries have suggested this undertaking, I owe my everlasting gratitude and affection.  ~ Frederic William Stack, New Rochelle, New York, April 1909 (Preface)