Haworthia (genus)

This profile represents Haworthia at genus rank. [Kew](https://powo.science.kew.org/taxon/331203-2) accepts the genus. No species, cultivar or planting material is chosen, and no common height, hardiness, water need or measured fire performance is assigned to every member. ## County source context The [2014 county list](https://www.slocounty.ca.gov/departments/planning-building/forms-documents/environmental-forms-and-documents/plants-information/county-approved-plant-list), page 14, prints Haworthia (Varieties)/F2 in a shrub context. F2 is the source’s favorable fire-retardant category for 30–70 feet. The 2014 source does not settle whether it uses a broader historical Haworthia concept. [Kew’s treatment of H. attenuata](https://powo.science.kew.org/taxon/535997-1) now places that name in Haworthiopsis. Other historical members are treated as Tulista. This is a qualified printed-name context; neither current biological scope nor a particular species, hybrid or cultivar is resolved, and no band is transferred automatically to those other genera. These are qualified documentary source contexts at the printed generic-name scope, not verified individual-member assessments. The catalog category organizes this record without establishing one habit or use for every member. Keep regional ratings separate, identify the actual plant before choosing placement, and follow the source’s spacing, watering and dead-material-removal conditions. No plant is fireproof.