Plant Rhamphospermum nigrum

Spice:

Black mustard

Botanical Name:

Rhamphospermum nigrum

Botany:

It is an upright plant, with large stalked leaves. They are covered with hairs or bristles at the base, but on the stem smoother. It can reach up to 1.2 m (3 ft 11 in) tall in moist fertile soil. It blooms in summer, from May (in the UK) onwards. The flowers have four yellow petals, which are twice as long as the sepals. Each stem has around four flowers at the top, forming a ring around the stem. Later, the plant forms long seed pods, that contain rounded seeds.

Cultivation:

N/A

Wikipedia URL:

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