What may appear to be ample material when fresh may be skimpy once it is dried. When collecting actually look at the the plant to estimate height or note other characters. Many who have trouble remembering this information never closely examined the plant in the first place. If you have trouble remembering details, carry a small notebook or a marking pen to write directly on the leaves. Alternatively, write on the edge of the newspaper as you are pressing the plants.
Many collectors tag their collections to prevent later mix-ups.
Small white tags should be securely tied to stems or fruits, with the collector's name, collection number, and a field determination written in permanent ink or pencil. Other collectors have used stick-on type tags. These techniques become difficult to use if field conditions are rugged, or if it rains. The standard MO pole set consist of two nested poles whose combined length, when locked, is about 3.6 m. By adding extra poles one can work relatively easily with up to six poles for a total of about 10.5 m.