Sisymbrium species - Hedge Mustards

Sisymbrium have simple hairs and thin seed pods.

Sisymbrium officinale - Hedge Mustard

This is a common weed of pavements and roadsides.

Sisymbrium orientale - Eastern Rocket

It is different from the commoner Hedge Mustard Sisymbrium offinicale because the seed pods are much longer, slightly hairy when young and held away from the stem. The leaves are also not as regularly pinnate.

Sisymbrium altissimum Tall Rocket is also found in Lanarkshire

Differs from Sisymbrium officinale in:

- Much finer, and more divided leaves with end lobe not markedly enlarged. Even the stem leaves have 2-5 pairs of fine lobes.

- Petals larger 7-10mm, sepals are toothed at the tip and held away petals

- Spreading cylindrical fruits 60 - 100mm long held at 45° to stem. They are hairless

Sisymbrium officinale NS5960 21Jun2015 PW

Sisymbrium officinale NS5960 21Jun2015 PW

Sisymbrium officinale NS5665 30May2018 PW

The basal leaves are also distinctive. The basal leaves have a large end lobe and few paired side lobes.

Sisymbrium officinale NS5366 12Jun17 PW

Basal and stem leaves are lobed and toothed. There are many stem leaves. Leaves look rough and can be bristly-hairy.

Sisymbrium officinale NS5959 1Jun19

In a very typical position. The basal leaves are deceptive, you think it's going to be something else then later in the season it looks like a denuded fir tree with short fruits tightly appressed.

Sisymbrium officinale NS5366 12Jun17 PW

The leaves have more triangular lobes than Sisymbrium officinale and spear shaped end lobe and can be softly hairy.

Sisymbrium orientale NS5964 12Oct17 PW

Petals larger 7-10mm, sepals held close to petals.

Sisymbrium orientale NS5964 12Oct17 PW

Sisymbrium orientale NS6062 25Sep2017 MP

Spreading cylindrical, curved fruits 60 - 120mm long held at 45° to stem. They are hairy in lower parts at least initially

Sisymbrium orientale NS6062 25Sep2017 MP