The Portulacaceae are a family of flowering plants comprising about 20 genera with about 500 species ranging from herbaceous plants to shrubs. The family has been recognised by most taxonomists and is also known as the purslane family; it has a cosmopolitan distribution with the highest diversity in semiarid regions of the Southern Hemisphere in Africa Australia and South America but with a few species also extending north into Arctic regions. Given a list of categories: company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work, what category does the paragraph belong to?
A:
Plant