This crucifer, which is of course not a kind of grass, grows right on the sea shore or in salt marshes flowering in Spring. Some flowers can usually be found throughout the summer. The succulent basal leaves are sometimes present in large numbers and these were picked for their Vitamin C content centuries ago. The plants here had very few basal leaves but those that were present had the rounded bases typical of C. officinalis. There are two sub-species which Stace recognises and this one is probably ssp cochlearia.