Texas Gardening: Is this Ibervillea lindheimerii?, 0 by rosemarysims

rosemarysims wrote:
I collected a bright scarlet fruit about the size of a large hen's egg a couple of years ago where it was prevalent in a fence row in Refugio Co. I assumed it was a Passiflora because the pale beige, flattened oval seed was reticulated. I cleaned some of the seed by eating the flesh and it tasted quite a bit like a maypop! Duh... The young plants were kept in 4" pots most of the year and soon a caudex was visible in the pots. I didn't get around to potting any up until this spring and they really took off. They began blooming today and if this is a passion flower, it's a really confused one! The flowers are about the size of a nickel and they are in clusters of up to 6. The closest I could come in my search is Ibervillea lindheimerii. Can anyone confirm that this is indeed the plant that I have?
Thanks,
Rosemary