marsh orchid

Dactylorhiza majalis has deeply 2- to 5-fid tubers, with the apex somewhat elongated. The stem can grow up to 75 cm in height and bears 4 to 8 distant leaves. The leaves are erecto-patent and may or may not have brown spots, with the upper ones reaching or exceeding the base of the inflorescence. The raceme is ovoid to cylindrical in shape. The outer perianth segments measure 6 to 12 mm and are ovate to oblong-lanceolate in shape, with an obtuse apex. The inner perianth segments are obliquely lanceolate to ovate. The labellum is 5 to 14 mm in length and 6 to 15 mm in width, suborbicular or wider than long, and may be entire or 3-lobed. The lateral lobes are ovate-triangular, rounded or truncate, and crenulate, while the middle lobe is triangular and can be shorter or longer than the lateral lobes. The spur is deflexed and conical-cylindrical, as long as or almost as long as the ovary. The species has a chromosome count of 2n = 80.

Dactylorhiza majalis is typically found in damp meadows and fens. These habitats are characterized by their high moisture content and often include areas with peat soils or shallow water. The plant thrives in such conditions, which provide the necessary humidity and nutrient levels for its growth.

Cultivating Dactylorhiza majalis requires a moist, well-drained soil with a high organic content. It prefers partial shade to full sun and benefits from a consistently damp environment. The plant is sensitive to changes in moisture levels and may not thrive in drier conditions. When growing in cultivation, it is important to mimic its natural habitat as closely as possible, including the use of peat-based substrates and regular watering. Propagation can be challenging and is often done through seed or division of the tubers.

Dactylorhiza majalis is primarily valued for its ornamental beauty and is often grown in botanical gardens and specialized collections. It is not commonly used for commercial purposes or traditional medicine. However, as with many orchids, it plays an important ecological role in its native habitats by supporting pollinators such as bees and butterflies. Conservation efforts are sometimes directed towards protecting its natural habitats, especially in areas where wetlands are under threat from human activity.