Diervilla lonicera is a shrub to 12 m tall, twigs ridged, base scaly.
Leaves opposite, oblong, to 15 cm long, tip long-pointed, margin finely toothed, fringed with hairs, stalks to 1 cm.
Flowers yellow, becoming reddish, tubular, bilaterally symmetrical, funnel-shaped, to 2 cm long, hairy inside, stamens as long as petal lobes, stigma longer, in clusters of 3-7, blooming June-July.
Fruit to 1.5 cm, slender, a dry capsule with beak.
Wetland status: NL.
Frequency in NYC: Very infrequent. mostly north of NYC.
Origin: Eastern n. America.
Habitat: Dry, rocky areas, soil, pH 4.8-7 (USDA, NRCS 2011). Very tolerant of shade. Tolerant of drought, soil compaction. Intolerant of flooding (Hightshoe 1988).