|Aster tripolium is a
biennial herb growing in salt marshes close to seashores or islands
wetlands; leaves are thick, 6.5-10cm-long, lanceolate in shape,
somewhat glossy, and embrace stems a bit. Leaves are linear on the
upper parts. Head flowers, many in number, are 2cm in diameter; ray
florets are light purple. Bloom time: August-November.