Property:Form duration A Text property defining a single value. Structure: form Character: duration A phenology property Types of form duration None. Parts of form duration None. Usage4previous 5,0002050100250500next 5,000FilterShowing 4 pages using this property.EEschscholzia californica +perennial +Eschscholzia californica subsp. californica +perennial +Eschscholzia californica subsp. mexicana +perennial +SScleria muehlenbergii +perennial + Category: Phenology