Phytolacca icosandra

Phytolacca icosandra, sometimes known as button pokeweed or tropical pokeweed, is a species of flowering plant found in the neotropics and introduced into the warmer areas of the western USA. It reaches up to 3 m in height, with leaves of 10–20 cm by 9–14 cm. The flowers are produced in racemes 10–15 cm long, each flower 5–10 mm diameter, with 8-20 stamens (icosandra means "twenty stamens"). The fruit is a black berry, 5–8 mm diameter. Raphides occur profusely in at least the leaves, red petioles and midribs....read more on Wikipedia.