COAST SAND-SPURREY

(Spergularia tasmanica)

There are quite a few sand-spurreys, and it can be difficult to tell them apart. We thought this one was the non-native Spergularia media. However, thanks to Chris Brodie at the State Herbarium, we now know it is a different spurrey, the native Spergularia tasmanica. A lover of sandy coastal swamps and salty marshes, this small perennial has woody stems up to 40cm long. The first 2 photos above show the narrow fleshy leaves; these can be up to 80mm long, but only 1-2mm wide. They aren’t really hairy, (so botanists say ‘glabrous’) and they end abruptly in a sharp point (check out the word ‘mucronate’…isn’t that a great word!). The springtime flowers have 5 petals, 5mm long, and are a pale pink in colour. The 5 sepals sitting under the flower are 3-5mm. The photos above were taken when the plants were setting seed; in the 2^nd last photo, you can see the seed pod, with the brown-black seeds inside. The seed itself, seen in the last photo, has a membranous wing. You might need a magnifying glass to see it though, since the seeds are only about 1mm long! The colour of these is what was used to distinguish this plant from the other contender, Spergularia media. Thank goodness for a camera that takes good images of seeds!!