Are Crocus Sativus and Rosemary in the same botanical family?

No — Crocus Sativus is Iridaceae and Rosemary is Lamiaceae.

Can you substitute Crocus Sativus for Rosemary?

They come from different families (Iridaceae and Lamiaceae), so direct substitution is uncommon.

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Crocus Sativus vs Rosemary

Crocus sativus · Salvia rosmarinus

Crocus Sativus

Crocus sativus

D No Clinical Evidence

Family: Iridaceae
Genus: Crocus
Primary use: culinary

Crocus sativus, commonly known as saffron crocus or autumn crocus, is a species of flowering plant in the iris family Iridaceae. A cormous autumn-flowering cultivated perennial, unknown in the wild, it is best known for the culinary use of its floral stigmas as the spice saffron.…

Rosemary

Salvia rosmarinus

D No Clinical Evidence

Family: Lamiaceae
Genus: Salvia
Primary use: culinary

Salvia rosmarinus, synonym Rosmarinus officinalis, commonly known as rosemary, is a shrub with fragrant, evergreen, needle-like leaves and purple or sometimes white, pink, or blue flowers. It is a member of the mint family, Lamiaceae.

At a glance

· Different families — Iridaceae vs Lamiaceae.
· Both are primarily culinary.
· Evidence tiers — Crocus Sativus: D; Rosemary: D.