Texas Gardening: Glad I did not yank out this vine, 0 by Agaveguy

Agaveguy wrote:
Ladies, I think we have a puzzle. My primary reference is 'Manual of the Vascular Plants of Texas", Correll and Johnston. I admit this is becoming more and more outdated in its taxonomy, but it lists five species of Passiflora in Texas that have small, green flowers: P. tenuiloba, P. suberosa, P. lutea, P. filipes, and P. affinis. I have seen P. tenuiloba in Bexar County and it is not the plant in my photo. P. suberosa is supposedly found only in "extreme s. Tex." in palm groves and thickets; so I don't think it's that one. P. filipes is stated to occur in "palm groves and thickets in extreme s. Tex." Again, by range, I rule out P. filipes. This leaves us with P. affinis and P. lutea. The separation in the key is P. affinis as "Peducles rather stout, provided with bracts that are often early-deciduous..." and P. lutea as "Peduncles very slender, bractless..."
http://wildflower.org/plants/result.php?id_plant=PAAF

I believe the plant in my photo is Passiflora affinis. What do you think?