Cypripedium arietinum, commonly known as Ram’s Head Lady’s Slipper, is a deciduous perennial herb that is native to a variety of habitats including mixed forests, coniferous woodlands, and forested wetlands in the Northeastern USA, the Great Lakes Region, and Eastern Canada. This orchid typically grows to a height of 10–40 cm (4–16 in) and features 3 to 5 ovate leaves arranged alternately along the flowering stem. The plant usually produces a single flower per stem, which is distinctive for its purplish-red color with light venation and a white lip. The flower’s unique shape includes three petals, with one modified into a densely hairy pouch adorned with white and purplish markings, resembling a ram’s head. The blooming period occurs in May and June, and the flowers are highly valued for their intricate beauty and rarity.

Ram’s Head Lady’s Slipper is appreciated for its unique and showy flowers, making it a sought-after species for woodland gardens and native plant enthusiasts. It is often used in shaded rock gardens or as a specimen plant in naturalized areas. Cultivation requires careful attention to mimic its natural habitat, including part shade conditions, consistent moisture, and well-drained, humus-rich soil. Due to its specific growing requirements and rarity, it is not commonly found in cultivation and is considered difficult to grow. Gardeners should be aware that this species is protected in many areas and should not be collected from the wild.CC BY-SA 4.0