From a scientific paper ...Moonflowers are part of the Solanaceae family, Datura inoxia. The plant, which blooms at night, is typically 3 feet high and is native to the southwestern U.S. and northern Mexico. In the fall, it produces thorny pods containing seeds.

Health officials say that similar or related plants, including Devil’s Weed, Devil’s trumpet and Jimson Weed, often are referred to as moonflower and could have similar toxic effects.

also morning glory is a vine and not stocky plant. Morning glory blooms early morning and reopen on consecutive days. moon flower looms at night , once, has a high concentration of belladonna in the stems, leaves and seeds. the northern range of the plant is Colorado. It can only be grown indoors in Canada, so whatever you have it is not the plant identified in western literature as loco weed. It may be locally called that, but Datura was the famous loco weed.

@glennlab I did supply the reference to it and that is not it, cowslip causes both cattle and horses to go crazy and in the process causes cattle to abort, thus, the common name cowslip, it is a member of the Milk vetch family and it is the famous locoweed. Being a legume it would get grazed during drought conditions.
P.S. Morning glory does apparently grow in a bush configurations well as the normal vine type, as someone just posted here a day or two ago photos of the same. Were they wrong and were actually posting photos of Moonflower?

@HeathenFarmer Your reference is NOT a scientific document, I read it it is at best a very poor understanding of the history of the US southwest. The picture earlier here of "moonflower " was a culitivar that has been reference with that name. Datura inoxia is the plant that was reference in history as loco weed, it is known as Jimsom weed, Devil's trumpet , and Devil Weed. Cowslip and all of the milkweed plants are also "poison" but they don't cause hallucinations, one of the biggest attributes of loco weed.

@glennlab [britannica.com]

@glennlab Clearly you are mistaken. [ars.usda.gov]

@HeathenFarmer you are still not reading the reference HISTORICAL reference to Loco weed was Jimson weed, my reference was to the settlement and areas of TEXAS and ares to the west of it. Go to Mark Twain for the historical reference. any way what difference does it make, I told you the scientific name of the plant I photographed, moon flower, loco weed, jimson weed, devil's trumpet, devil's vine are all correct names for that scientific name.

thank you, this was very early in the season, with our current drought, they are not nearly as impressive as in other years, but they are still geen when everything else is brown.

mine came to me in a bunch of mulch, They were in a spot where I thought they were volunteer eggplants, until those damn blooms came. Had both new and returning plants every year since then.