2016 – Mexico – Cadereyta de Montes – Regional Botanical Garden – 3 of 8
Image by Ted’s photos – For Me & You
Growing as a large roughly spherical globe, Golden Barrel (Echinocactus grusonii) may eventually reach over 1 metre (3.3 ft) in height after many years. The generation lifetime is estimated to be 30 years.-
Older specimens take on an oblong shape with age. They also tend to lean to the south or southwest so that the spines can better protect the body of the plant from the harsh desert sun. In fact, desert travellers can use the plant as a compass.
Only a few specimens of Echinocactus grusonii (Cactaceae), a highly threatened species, still growi in the wilderness of the state of Querétaro, Mexico
There are currently two disjunct subpopulations of this species. The small subpopulation in Querétaro found on medium to steep slopes of volcanic rock near Mesa de Léon in a very small area. A new subpopulation has recently been discovered in Zacatecas.
The total number of plants in the Querétaro is estimated to be less than 1,000, the majority of which are mature. The Zacatecas subpopulation is estimated to comprise several thousand mature individuals.