The correct option is B Height of the plant
Herbarium sheets contain dried plants or plant parts with their description, for study. Field notes and the date of collection are mentioned in a herbarium label. However, herbarium sheets do not carry information on the height of a plant as plant height of different individuals of the same species may differ due to external factors.
An example of Herbarium Label
Scientific name : Ranunculaceae, Ranunculus ficaria (family, genus, and species)
Vernacular name(s) : Lesser Celandine, Pilewort
Collector’s name and specimen number : Lawrence 1
Date of collection : 20th March 2003
Locality : Orleans House Gardens, Twickenham, England
Habitat : damp, clay soil, 20 yards from the riverbank, growing in dappled shade on the edge of deciduous woodland; nearby plant is Dock (Rumex obtusifolius).
Habit : perennial herb, up to 20 cm tall, with stems creeping and rooting
Characteristics : leaves hairless glossy green, flowers bright glossy yellow, turning white with age
Medicinal uses : astringent for hemorrhoids (Hoffman 1992: 223)