Grandpa Ott. Ipomoea nil, for "nil" alkaloids.Growing on its own in a friend's garden, we think it could be I. purpurea.
What do the sages of the Nexus think?
Thank you! Lower right of the first picture shows a calyx!The easiest way to identify Ipomoea species in the I. nil complex is with images of the flowers and fruit that include the calyx. Images of the seed can also help.
In fact, in general images of flowers, fruit and seeds of any type of morning glory can be used to identify them fairly well with a few exceptions of lookalike species.