Morning Glories: ID?, 1 by Jianhua

Jianhua wrote:
It is the edible lady's finger, I am sure,
Which my yarden grows for years.
The guy is very productive,
And only a few plants can serve your table
From early summer through late fall.
Personally, the cupped light yellow blooms
Are not so bad to feast my eyes
I always associate them with those
Of cotton and hibiscus or this wild one
Which is growing at the side of the country road
Carrying me back and forth to school.