They are pink or white flOwers and I need to find a reference but I believe they have between 4 and 8 seeds a flower as for containing LSA
I have no clue tranger believes they could contain it though and for factuality there is a couple types of bindweed in the USA I will add on all the info I can gather
V3TR added 14 Minutes and 12 Seconds later...
So there is 3 types of (bindweed) hedge bindweed*Calystegia sepium (Convolvulus sepium) , beach morning glory
*Calystegia soldanella , and bindweed*Convolvulus arvensis.*Medicinal use of Hedge Bindweed: The root is demulcent, diuretic, febrifuge, poultice and strongly purgative. Use of the root is believed to increase the flow of bile.*Medicinal use of Beach morning glory: Antiscorbutic, diuretic, febrifuge, irritant, purgative and vermifuge.Medicinal use of Bindweed: The root, and also a resin made from the root, is cholagogue, diuretic, laxative and strongly purgative. The dried root contains 4.9% resin. The juice of the root is used in the treatment of fevers. A tea made from the flowers is laxative and is also used in the treatment of fevers and wounds. A cold tea made from the leaves is laxative and is also used as a wash for spider bites or taken internally to reduce excessive menstrual flow. I'm pretty sure these don't contain LSA *and since they are highly purgative trying them may not be smart