Plant Profile: Spiranthes lacera var. gracilis

Spiranthes lacera var. gracilis, commonly known as Southern Slender Ladies' Tresses, is a perennial wildflower belonging to the orchid family. This herbaceous plant is indigenous to Eastern North America and thrives in a diverse range of open environments, whether natural or altered by human activity. During the summer and extending into the fall, it showcases a spiral arrangement of white flowers. Among the two varieties of S. lacera, the gracilis variant is characterized by its dense floral spiral and later blooming period. Notably, this plant is devoid of hair and lacks leaves during its flowering phase. In contrast, the other variety, S. lacera var. lacera, or Northern Slender Ladies' Tresses, features a more loosely arranged floral spiral, blooms earlier, has hairy stems, and retains leaves during flowering.

Southern Slender Ladies' Tresses typically produces 2 to 4 basal leaves, which often wither before or around the time of flowering in the summer or fall. The plant can develop an inflorescence containing up to 40 small white flowers, tightly arranged in a spiral formation. It is easily identifiable from other Spiranthes species by the unique green spot on its labellum, with edges that are slightly crenate and rolled inward. This orchid can be found in a variety of habitats, including moist to dry meadows, fields, prairies, open woodlands, and disturbed sites like roadsides and lawns. Pollination is primarily carried out by various long-tongued bees.

In terms of pests, diseases, and other potential issues, this plant is known to be free from any significant problems.