Cochlearia danica - Danish Scurvygrass

Cochlearia anglica English Scurvygrass basal leaves cuneate. Stem leaves are sessile and strongly clasping the stem. Fruits compressed. Coastal in muddy estuaries and shorelines.

Cochlearia danica Danish Scurvygrass basal leaves cordate,  Stem leaves are ivy-shaped and all except for the upper stem-leaves are petiolate and none clasp the stem. Flowers < 5mm across often lilac, fruits slightly to not compressed.

Cochlearia officinalis Common Scurvygrass basal leaves rounded to cordate at base. Upper stem-leaves are sessile and clasping. Flowers > 5mm across, fruits slightly to not compressed.

 It is probable best to record as Cochlearia officinalis agg. some authors divide into more species but they can really only be split genetically as they are so plastic.

 Cochlearia officinalis s.s. upper stem leaves distinctly clasping at the stem and flowers 8-15mm. Maritime habitats and some inland sites.

 Cochlearia pyrenaica Pyrenean Scurvygrass upper stem leaves ± clasping or not clasping and flowers 5-8mm. Upland inland habitats.