Mammillaria thornberi

Botanical Description

Mammillaria thornberi is a spiny, evergreen cylindrical cactus, branching prolifically from the base to produce dense clumps. The slender, cylindrical stems are 45 - 100mm tall (exceptionally to 300mm) and 20 - 35mm in diameter. Every branch develops its own, independent root system; its connection to the rest of the clump is ephemeral, resulting in dense clumps of independently rooted stems[ 270 Title Flora of N. America Publication Author Website http://flora.huh.harvard.edu/fna/ Publisher Year 0 ISBN Description An on-line version of the flora with an excellent description of the plant including a brief mention of plant uses. ]. The plant is harvested from the wild for local use as a food. It is grown as an ornamental[ 338 Title IUCN Red List of Threatened Species Publication Author Website http://www.iucnredlist.org/ Publisher Year 0 ISBN Description A list of plants under threat and facing possible extinction, usually with brief details of the threats and information on habitat. ]. Mammillaria thornberi occurs in more than 10 locations and there are no major threats affecting it that could cause continuing declines in the extent or quality of its habitat. The plant is classified as 'Least Concern' in the IUCN Red List of Threatened Species(2017)[ 338 Title IUCN Red List of Threatened Species Publication Author Website http://www.iucnredlist.org/ Publisher Year 0 ISBN Description A list of plants under threat and facing possible extinction, usually with brief details of the threats and information on habitat. ].