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(Note: no wikidata item is associated with this category)
- English: sandpaper plants
- Included species (for NCBI, ):
- P. crenatus, P. linearis, P. nitidus, P. parryi, P. thurberi
- Included species (for The Plant List, ):
- P. crenatus, P. gilmanii, P. linearis, P. nitidus, P. parryi, P. thurberi
This category has the following 4 subcategories, out of 4 total.