by Steve Young – NY Natural Heritage Program
Last summer I had to leave early from Mashomack Preserve on Shelter Island for a field trip to Long Island. While I waited for the South Ferry I decided to explore the marsh to the west where a friend had told me there were some interesting plants. He was right.

The seaside plantain, Plantago maritima ssp. juncoides is our only plantain that grows in saltwater.

Dwarf glasswort, Salicornia bigelovii, is a single-stemmed annual with thick stems and a leaf scale that has a mucronate (pointed) tip.

Here they are together. There is one other glasswort, Salicornia depressa, that is a single-stem annual but its scales are not mucronate and it has more narrow stems.