The plants are annuals. According to stem is downy, covered up in a stem 20-30 cm tallOut single leaf are arranged in pairs, the early appearance of the leaves are rounded end rounded leaves sharp edges, there shall be a smooth, but can be a little wave. The size of the width of approximately 1-1.5 inches long 2.5-3 "green bouquet or sometimes flowers single forked at the top of the color purple, the flowers are separated into cone flowers at the end of 5 petals. The flower has short 4 pollen 2 long 2 effect is ฝักยาว, which approximately 1 inches., or is water. This result is split into halves. 2 inside the seed in seed 8
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