Scientific name Selaginella lepidophylla is also known as the false Rose of Jericho, as opposed to the true Rose of Jericho. It is also known as the resurrection plant, due to its miraculous ability to return to life after extreme desiccation. 

Extra small: under 0.5 ounces

Small: between 0.5-1 ounce 

Large: over 1 ounce