Are Eucalyptus and Psidium Guajava in the same botanical family?

Yes — both belong to Myrtaceae.

Can you substitute Eucalyptus for Psidium Guajava?

They share the Myrtaceae family, so they can sometimes substitute in recipes — with notable differences in aroma.

Compare · per-herb profile

Eucalyptus vs Psidium Guajava

Eucalyptus globulus · Psidium guajava

Eucalyptus

Eucalyptus globulus

C Limited Evidence

Family: Myrtaceae
Genus: Eucalyptus
Primary use: aromatic

Eucalyptus globulus, commonly known as southern blue gum or blue gum, is a species of flowering plant in the family Myrtaceae. It is a tall, evergreen tree endemic to southeastern Australia. This Eucalyptus species has mostly smooth bark, juvenile leaves that are whitish and waxy…

Psidium Guajava

Psidium guajava

T Traditional Use

Family: Myrtaceae
Genus: Psidium
Primary use: medicinal

Psidium guajava, the common guava, yellow guava, lemon guava, or apple guava is an evergreen shrub or small tree native to the Americas. It is pollinated by insects. When cultivated, it is pollinated mainly by the common honey bee, Apis mellifera.

At a glance

· Both in Myrtaceae, but different genera (Eucalyptus vs Psidium).
· Primary use differs — Eucalyptus: aromatic; Psidium Guajava: medicinal.
· Evidence tiers — Eucalyptus: C; Psidium Guajava: T.