Solidago sempervirens is a perennial herb, somewhat stout and slightly succulent, smooth, 40 cm to 2 m tall, from a short root crown.
Leaves smooth, thick, slightly fleshy, entire, the largest basal leaves often widest above middle, 10-40 cm long, 1-6 cm wide, persistent into winter, stem leaves reduced upwards.
Flowers yellow, showy, relatively large, of two types in small heads, rays 12-17, 0.3-0.5 cm long, disk flowers 17-22, bracteate base of heads 0.3-0.7 cm long; inflorescence dense, narrow, branched along a central axis, flowers on one side of branches (secund); blooming and fruiting July-Nov.
Fruit dry 1-seeded, with white bristles, slightly hairy, wind dispersed into winter; seeds eaten by some birds.
Wetland status: FACW.
Frequency in NYC: Common.
Habitat: Open, coastal areas, dunes, often infected by rust fungus (Gargiullo, personal observation). Foliage eaten by the Chrysomelid beetle Paria thoracica (Krischik and Denno 1990).