Are Brassica Nigra and Brassica Rapa in the same botanical family?

Yes — both belong to Brassicaceae.

Can you substitute Brassica Nigra for Brassica Rapa?

They are close relatives in the genus Brassica, often substitutable with flavor adjustments.

Compare · per-herb profile

Brassica Nigra vs Brassica Rapa

Brassica nigra · Brassica rapa

Brassica Nigra

Brassica nigra

T Traditional Use

Family: Brassicaceae
Genus: Brassica
Primary use: culinary & medicinal

Rhamphospermum nigrum, black mustard, is an annual plant native to cooler regions of North Africa, temperate regions of Europe, and parts of Asia..It is cultivated for its dark-brown-to-black seeds, which are commonly used as a spice.

Brassica Rapa

Brassica rapa

T Traditional Use

Family: Brassicaceae
Genus: Brassica
Primary use: medicinal

Brassica rapa is an annual to biennial plant species native to Eurasia that is from the Brassicaceae family. The B. rapa subspecies oleifera is an oilseed commonly known as turnip rape, field mustard, bird's rape, and keblock.

At a glance

· Same genus (Brassica) — close relatives, often substitutable.
· Primary use differs — Brassica Nigra: both; Brassica Rapa: medicinal.
· Evidence tiers — Brassica Nigra: T; Brassica Rapa: T.