Hesperocnide tenella, commonly known as western nettle, is a herbaceous annual plant native to western North America. This species belongs to the Urticaceae family, which also includes stinging nettles. Western nettle is a relatively small plant, typically reaching heights of 10 to 40 centimeters. Its growth habit is erect to spreading, and it often forms loose colonies in suitable habitats. The stems are generally slender and can be sparsely to moderately covered with stinging hairs, though these are typically less potent than those found on some of its relatives. The leaves of Hesperocnide tenella are arranged oppositely along the stem. They are simple, ovate to broadly ovate in shape, with serrated or toothed margins. The leaf surface can be somewhat rough to the touch, and like the stems, may bear stinging trichomes. The stinging sensation, when present, is usually mild and transient. The plant produces inconspicuous flowers that are unisexual, with male and female flowers borne on the same plant (monoecious) or on separate plants (dioecious). The inflorescences are typically axillary or terminal clusters. The flowers lack petals and are wind-pollinated, characterized by their small size and greenish coloration. Following pollination, the plant develops small, achene-type fruits, which are enclosed within a persistent calyx. The seeds are minute and are dispersed by wind or water. Hesperocnide tenella is found in a range of habitats across its native distribution, which extends from California north into Oregon and sometimes Washington. It prefers moist to mesic environments, often growing in disturbed areas, along stream banks, in open woodlands, and on grassy slopes. The plant thrives in well-drained soils and can tolerate a variety of soil types, from sandy to loamy. While it is adapted to its native climate, it generally prefers areas with moderate rainfall and can be found in both sun and partial shade. Cultivation requirements are not widely documented, but it is likely to perform best in conditions mimicking its natural habitat, with adequate moisture and protection from extreme heat and drought. Ecologically, Hesperocnide tenella plays a role in its native ecosystems, providing a food source for certain insects and contributing to ground cover in its preferred habitats. Its mild stinging hairs may offer some protection against herbivory. There is limited documented information regarding significant ornamental, agricultural, medicinal, culinary, or economic uses for this species. Its primary significance lies in its contribution to the biodiversity of western North American flora and its ecological role within its native plant communities. An interesting characteristic of Hesperocnide tenella is its adaptation to ephemeral moisture conditions, often appearing and completing its life cycle rapidly after seasonal rains. The presence of stinging hairs, even if mild, is a notable feature that links it to the broader nettle family, serving as a defense mechanism.