Are Acorus Gramineus and Calendula in the same botanical family?

No — Acorus Gramineus is Acoraceae and Calendula is Asteraceae.

Can you substitute Acorus Gramineus for Calendula?

They come from different families (Acoraceae and Asteraceae), so direct substitution is uncommon.

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Acorus Gramineus vs Calendula

Acorus gramineus · Calendula officinalis

Acorus Gramineus

Acorus gramineus

T Traditional Use

Family: Acoraceae
Genus: Acorus
Primary use: medicinal

Acorus gramineus, commonly known as Japanese sweet flag, Japanese rush, grassy-leaved sweet flag, and grass-leaf sweet flag, is a botanical species belonging to the genus Acorus, native to Japan, Korea, and eastern Asia. The plant usually grows in wetlands and shallow water.

Calendula

Calendula officinalis

T Traditional Use

Family: Asteraceae
Genus: Calendula
Primary use: medicinal

Calendula officinalis, Mary's gold, common marigold, the pot marigold, Scotch marigold, or ruddles, is a flowering plant in the daisy family, Asteraceae. It is probably native to southern Europe, but its long history of cultivation makes its precise origin unknown, and it is wide…

At a glance

· Different families — Acoraceae vs Asteraceae.
· Both are primarily medicinal.
· Evidence tiers — Acorus Gramineus: T; Calendula: T.