Uvularia sessilifolia is a perennial monocotyledon, herb, 10-30 cm tall, colonial from short rhizomes that become detached from the parent plant; stem thin, forked in older plants, 0-2 leaves below fork.
Leaves alternate, stalkless, pale dull glue-green, whitish below, young leaves pointed at both ends, becoming egg-shaped at maturity to 8 x 3 cm, veins parallel.
Flowers pale yellow, about 2 cm long, bell-shaped, contain nectar, pollinated by bees (Andrena spp.), (Motten 1986), 1-2 flowers, dangling from under stem; blooms April-mid-June.
Fruit dry, papery, hollow, 3-sided, few-seeded, summer, probably ant dispersed (Matlack 1994).
Wetland status: FACU-.
Frequency in NYC: Frequent.
Habitat: A forest interior herb in undisturbed sites, shade tolerant but emerging before canopy closes, found in soil with pH 4.4-5.6 (Gargiullo, unpublished data), sometimes found with Maianthemum canadense.