I think this is Ero aphana based on the appearance and epigynum. A recent introduction to BC? I found her on an outdoor chair near the house, feeding on what I believe is a juvenile Parasteatoda tepidariorum. I scooped her up on a bit of greenery to photograph her. Epigynum and ventral images from several hours later, once she had finished her meal.
Update: added one of the other epigynum images I took. The original one was shot through a very dusty bit of glass, though the second angle is perhaps worse.
Continuing individual nearly a month after first spotting her in my backyard (9/11/20, https://www.inaturalist.org/observations/59267584), although now a bit more plump! Journal entry: http://williamwisephoto.com/photographyblog/joro-spider-invasion
Link to a 2014 article of the first one found in our area: https://www.onlineathens.com/uga/2014-10-30/madison-county-man-captures-spider-never-seen-north-america
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My mirror failed to fully retract on one shot (I think), making a false "ground" right where it should be for a chaparral yucca. This (hespero)yucca also afforded me a glimpse of two yucca moths! Previously observed. Initial observation Follow-up observation showing habitat and height scale
thicker stemmed than other similar plants