There are important and poignant signs of this plant. In palpation it is rough. The Hebrew name "cat nails" probably derives from the shape of the seed similar to the cat's nail. Or because it's a literal translation from Russian. Translated with Google Translate
A tour of the Yodfat moshav and the nearby forest is dedicated to Urtica pilulifera, Malva, Chrysanthemum coronarium, Sinapis arvensis, Silybum marianum, Calendula arvensis, Starfish (Stellaria media), Theligonum cynocrambe, Salvia hierosolymitana, Snake pumpkin (Bryonia syriaca). A study of wild plants with Mr. Barak Sagi. Second meeting. Translated with Google Translate