We flower in June and July and bear fruit from August to October. But the little seeds cling to Mother and don't drop off. In November they sprout down a tender little shoot that looks like the tip of a brush. That's why the Chinese call us "water brushes."
母株在六、七月開花，八到十月結果，小種子撒嬌賴在母親身上不掉落，十一月開始發芽，並漸漸往下長出茅般的嫩枝，末端如筆尖，也因此別人稱我們為「水筆仔」。