Growth as a function of height: Ferocactus cylindraceus
Plants surveyed are those that have already reached reproductive age (so cannot see effect of onset of flowering on growth rate).
Two charts are shown: growth by height class, and growth as a scatter plot. It appears that growth is relatively constant, but increases with height in heights above 100 cm.
Average growth in height per year is 2.7 cm.
Growth is from 1998 to 2004 (7 years). Plants were measured in 1998 and 2004. Shown are the average height (averaged between 1998 and 2004 measurements), and average growth per year (ditto).
The error bars are standard errors of the mean.
