Calyptridium umbellatum, commonly known as Mount Hood pussypaws, is a perennial herb native to subalpine and alpine zones in the mountain ranges of western North America, from British Columbia to California and eastward to Colorado. It typically forms basal rosettes of succulent, spoon-shaped leaves that are adapted to the harsh, rocky environments found at high elevations. The plant produces a distinctive inflorescence, which is a dense, spherical umbel composed of small, star-shaped flowers with pink to white petals and sepals, blooming from late spring to early summer. The flowers are modest in size but can be quite showy en masse due to their unique form and the contrast with the rocky soil.

Mount Hood pussypaws is valued for its ability to thrive in challenging conditions, such as rocky, well-drained soils with low nutrient availability. It is often used in rock gardens, alpine collections, and as a ground cover in areas that simulate its native mountainous habitat. This plant prefers full sun to partial shade and requires minimal water once established, making it a low-maintenance choice for suitable gardens. While not commonly afflicted by diseases, it can suffer from root rot if overwatered or planted in poorly draining soils. It is not known for being invasive or having aggressive roots, making it a safe choice for cultivation near other plants.CC BY-SA 4.0