Smilacina racemosa is a perennial herb that reaches about 1.0 m and prefers deeply shaded, woodland conditions. It favours moist but well-drained soils from sandy to clay types and is suited to planting under trees or in permanent shade. Native to North America, it is used for naturalising and in shade gardens. Expect flowering in May to June.

False Solomon's Seal (Smilacina racemosa) suits moist, well-drained soils in full shade and flowers in May to June.

https://en.wikipedia.org/wiki/Maianthemum_racemosum

Maianthemum includes the former genus Smilacina and is a genus of perennial herbaceous flowering plants with fleshy, persistent rhizomes. It is widespread across much of North America, Europe and Asia, and may be terrestrial, aquatic or epiphytic.

Smilacina racemosa

False Solomon's Seal (Smilacina racemosa) | Woodland Shade

Smilacina stellata is a shade-loving perennial herb used as a low ground cover in woodland planting. It reaches about 0.6 m and produces its flowers in May to June. Plant it where soil stays moist but drains freely, in full shade on sandy, loamy or clay soils. It is fully hardy (H7) and suited to cooler temperate climates.

Star-flowered false Solomon's seal Smilacina stellata is a shade-loving perennial ground cover that flowers in May to June.