Which of the following character is not associated in a plant having a single cotyledon in a seed, tendrillar stipules and adventitious root system?

Question

(1) Bisexual flowers with homochlamydeous perianth

(2) Reticulate venation in leaves

(3) Trimerous flowers with odd tepal of outer whorl is anterior in position

(4) Unisexual flowers in umbel inflorescence