Yes...number 10 is interesting...looks like it and 7 might share a ruffled look to it...maybe a common parent...
LOVE your avatarpicture... I have it planted and it's maybe 3-4 ft. Along now...building up some strength...when did you start seeing flowers on it...and what was flowering like...a few...a lot...frequently...continually..seldom...
The one i have growing isn't the cousin. I grew without flowers last year.." But I believe it is yours...