Scrophularia atrata is a perennial herb that is native to California, and endemic (limited) to California.
California Rare Plant Rank: 1B.2 (rare, threatened, or endangered in CA and elsewhere).
[Wikipedia] California Endemic, Habitat, Elevation Range: It is endemic to California, where it is known only from a section of the Central Coast Ranges in San Luis Obispo and Santa Barbara Counties. It grows in the calcareous and diatomaceous soils of the coastal canyons at elevations not exceeding 500 meters. (link added by Mary Ann Machi)
Calflora:
Information on California plants for education, research and conservation,
with data contributed by
public and private institutions and individuals.
[web application]. 2025.The Calflora Database
[a non-profit organization].Available:
https://www.calflora.org/(Accessed: 04/11/2025).
one or more occurrences