Henfield Road, Small Dole, W Sussex (left from New Hall Lane alongside road). Hairy Bittercress has 4 stamens (Wavy Bittercress, on the other hand, has six).

Hairy Bittercress (Cardamine hirsuta) (15/03/2022) Henfield Road, Small Dole, W Sussex (left from New Hall Lane alongside road). Hairy Bittercress has 4 stamens (Wavy Bittercress, on the other hand, has six).

Hairy Bittercress (Cardamine hirsuta) (22/03/2022) Southbank Equestrian, Henfield (arena bank adjacent to field). Again showing the four anthers.

Hairy Bittercress (Cardamine hirsuta) (29/03/2021) Southbank Equestrian, Henfield (arena bank adjacent to field).

Henfield Road, Small Dole, W Sussex (left from New Hall Lane alongside road). Hairy Bittercress has these straightish stems, and very few stem leaves (Wavy Bittercress instead has wavy stems and distinctive and many stem leaves).

Hairy Bittercress (Cardamine hirsuta) (15/03/2022) Henfield Road, Small Dole, W Sussex (left from New Hall Lane alongside road). Hairy Bittercress has these straightish stems, and very few stem leaves (Wavy Bittercress instead has wavy stems and distinctive and many stem leaves).

Southbank Equestrian, Henfield (arena bank adjacent to field). You can see just how small these flowers are by the presence of my hand!

Hairy Bittercress (Cardamine hirsuta) (03/04/2020) Southbank Equestrian, Henfield (arena bank adjacent to field). You can see just how small these flowers are by the presence of my hand!

Southbank Equestrian, Henfield (car park field). This is quite a large specimen but the flowers have but four stamens, so it can't be Wavy Bittercress because that has six stamens.

Hairy Bittercress (Cardamine hirsuta) (24/08/2021) Southbank Equestrian, Henfield (car park field). This is quite a large specimen but the flowers have but four stamens, so it can't be Wavy Bittercress because that has six stamens.

Hairy Bittercress (Cardamine hirsuta) (22/03/2022) Southbank Equestrian, Henfield (arena bank adjacent to field).

Southbank Equestrian, Henfield (arena bank adjacent to field). Dreadful hands showing just how small this plant is. Wavy Bittercress tends to be a bit more substantial..

Hairy Bittercress (Cardamine hirsuta) (26/04/2021) Southbank Equestrian, Henfield (arena bank adjacent to field). Dreadful hands showing just how small this plant is. Wavy Bittercress tends to be a bit more substantial..

Southbank Equestrian, Henfield (car park field). Hairy Bittercress has hairs on the surface of the leaves and in particular the leaf petioles (not visible here).

Hairy Bittercress (Cardamine hirsuta) (24/08/2021) Southbank Equestrian, Henfield (car park field). Hairy Bittercress has hairs on the surface of the leaves and in particular the leaf petioles (not visible here).

Henfield Road, Small Dole, W Sussex (left from New Hall Lane alongside road). Has quite rounded leaves - Wavy Bittercress instead has slightly elongated leaves.

Hairy Bittercress (Cardamine hirsuta) (15/03/2022) Henfield Road, Small Dole, W Sussex (left from New Hall Lane alongside road). Has quite rounded leaves - Wavy Bittercress instead has slightly elongated leaves.

Woods Mill Nature Reserve, Small Dole, Henfield, W Sussex. Six anthers here, so Wavy not Hairy Bittercress as the latter has just four anthers.

Wavy Bittercress (Cardamine flexuosa) (16/04/2022) Woods Mill Nature Reserve, Small Dole, Henfield, W Sussex. Six anthers here, so Wavy not Hairy Bittercress as the latter has just four anthers.

Wavy Bittercress (Cardamine flexuosa) (16/04/2022) Woods Mill Nature Reserve, Small Dole, Henfield, W Sussex.

Tottington Wood, Small Dole, Henfield, W Sussex. Wavy not Hairy Bittercress because the latter is lower-growing and shorter, less substantial, than Wavy Bittercress.

Wavy Bittercress (Cardamine flexuosa) (10/05/2021) Tottington Wood, Small Dole, Henfield, W Sussex. Wavy not Hairy Bittercress because the latter is lower-growing and shorter, less substantial, than Wavy Bittercress.

Tottington Wood, Small Dole, Henfield, W Sussex (on the edge of the pond). Classic for this species - these really zig-zag stems, hence "Wavy" bittercress. Hairy Bittercress instead has straighter and narrower stems with only a few (and smaller) stem leaves.

Wavy Bittercress (Cardamine flexuosa) (18/04/2022) Tottington Wood, Small Dole, Henfield, W Sussex (on the edge of the pond). Classic for this species - these really zig-zag stems, hence "Wavy" bittercress. Hairy Bittercress instead has straighter and narrower stems with only a few (and smaller) stem leaves.

Soutbank Equestrian, Henfield (arena bank adjacent to field). My little finger showing just how small the flowers are.

Wavy Bittercress (Cardamine flexuosa) (15/03/2022) Soutbank Equestrian, Henfield (arena bank adjacent to field). My little finger showing just how small the flowers are.

Wavy Bittercress (Cardamine flexuosa) (16/04/2022) Woods Mill Nature Reserve, Small Dole, Henfield, W Sussex. A mass of it growing amidst other foliage.

Woods Mill Nature Reserve, Small Dole, Henfield, W Sussex. Hairy stems unlike Hairy Bittercress (which instead has hairy leaves).

Wavy Bittercress (Cardamine flexuosa) (16/04/2022) Woods Mill Nature Reserve, Small Dole, Henfield, W Sussex. Hairy stems unlike Hairy Bittercress (which instead has hairy leaves).

Wavy Bittercress (Cardamine flexuosa) (18/04/2022) Tottington Wood, Small Dole, Henfield, W Sussex (on the edge of the pond).

Tottington Wood, Small Dole, Henfield, W Sussex (on the edge of the pond). Close-up of the stamens with their beige anthers, and the central stout style beneath which is the ovary from which the fruit will develop.

Wavy Bittercress (Cardamine flexuosa) (18/04/2022) Tottington Wood, Small Dole, Henfield, W Sussex (on the edge of the pond). Close-up of the stamens with their beige anthers, and the central stout style beneath which is the ovary from which the fruit will develop.

Footpath leading from Tottington Wood to Sands Lane, Small Dole, Henfield, W Sussex. A particularly leafy specimen.

Wavy Bittercress (Cardamine flexuosa) (18/04/2022) Footpath leading from Tottington Wood to Sands Lane, Small Dole, Henfield, W Sussex. A particularly leafy specimen.

Tottington Wood, Small Dole, Henfield, W Sussex. Wavy not Hairy Bittercress because the latter has few stem leaves, and stems are not hairy (despite the name. Wavy also has more leaflets than Hairy, and they are less round in shape.

Wavy Bittercress (Cardamine flexuosa) (10/05/2021) Tottington Wood, Small Dole, Henfield, W Sussex. Wavy not Hairy Bittercress because the latter has few stem leaves, and stems are not hairy (despite the name. Wavy also has more leaflets than Hairy, and they are less round in shape.

Footpath leading from Tottington Wood to Sands Lane, Small Dole, Henfield, W Sussex. Classic upper stem leaf shape. Leaves not hairy, unlike Hairy Bittercress.

Wavy Bittercress (Cardamine flexuosa) (18/04/2022) Footpath leading from Tottington Wood to Sands Lane, Small Dole, Henfield, W Sussex. Classic upper stem leaf shape. Leaves not hairy, unlike Hairy Bittercress.

Tottington Wood, Small Dole, Henfield, W Sussex (on the edge of the pond). Wavy Bittercress has more stem leaves than Hairy Bittercress, the latter tends to have them focused in the denser, basal rosette.

Wavy Bittercress (Cardamine flexuosa) (18/04/2022) Tottington Wood, Small Dole, Henfield, W Sussex (on the edge of the pond). Wavy Bittercress has more stem leaves than Hairy Bittercress, the latter tends to have them focused in the denser, basal rosette.