Zauschneria californica is a perennial in the Onagraceae adapted to dry, sunny sites. It prefers full sun and well-drained soil and tolerates dry to medium moisture. Native to western North America, especially California, it is also known simply as Zauschneria. Plant it where soil does not hold water, such as rock gardens, drought-tolerant schemes and borders.

California fuchsia (Zauschneria californica) prefers full sun and well-drained soil and suits rock, drought-tolerant gardens and borders.

https://en.wikipedia.org/wiki/Epilobium_canum

Epilobium is a genus of flowering plants in the family Onagraceae, containing about 197 species. The genus has a worldwide distribution.

Zauschneria californica

California fuchsia | Zauschneria californica

Zauschneria californica var. angustifolia is a botanical variety in the genus Zauschneria within the family Onagraceae. It is native to California. The name denotes a specific varietal epithet within that genus. Check plant labelling carefully when sourcing to ensure the correct variety.

Zauschneria californica var. angustifolia is a botanical variety in the genus Zauschneria native to California.

Zauschneria californica var. angustifolia

Zauschneria cana is a perennial from western North America, especially California, adapted to dry, sunny sites. It prefers full sun on well-drained sandy or rocky soils with a neutral to slightly acidic pH. Plant in an exposed, south-facing position where soil moisture ranges from dry to medium. Suited to rock gardens, drought-tolerant borders and gravel banks.

California fuchsia (Zauschneria cana) suits full sun on well-drained sandy or rocky soils in south-facing, exposed positions.