水草吐珠:

陸上植物吐水(Guttation) 稍多見，水草吐珠還少見一些，
這水草伸出水面，才見到這顆大水珠。
吐水同露珠 (dew) 不同，露珠是空氣濕氣凝結響葉表面。

Plants exude moisture which will form droplets on the leaves in the morning, especially when humidity is high.
This is called guttation and can be confused with dew (but both phenomena can occur at the same time).



城門谷公園賞花、荷、 吐珠。。。