Asplenium altajense, commonly known as the Altaian spleenwort, is a species of fern belonging to the Aspleniaceae family. This fern is recognized for its specific adaptations to its native environment and its distinctive frond morphology. Asplenium altajense is a perennial, herbaceous plant that typically forms small tufts. The fronds, which are the primary visible structures of the fern, are generally erect and can reach lengths of up to 30 centimeters. Each frond is pinnately compound, meaning it is divided into leaflets, or pinnae, arranged along a central stem, the rachis. The pinnae themselves are often narrowly ovate to lanceolate, with serrated or toothed margins. The sori, which are clusters of sporangia containing spores, are typically found on the underside of the fronds, arranged in linear or oblong patterns characteristic of the *Asplenium* genus. The stipe, or stalk of the frond, is usually dark in color, often purplish-brown to black, and may be scaly. The native distribution of Asplenium altajense is primarily in the mountainous regions of Central Asia, particularly in the Altai Mountains, from which it derives its specific epithet. It thrives in rocky habitats, often found growing in crevices of cliffs, on stony slopes, and in scree, typically in shaded or partially shaded locations. This fern prefers well-drained soils and can tolerate a range of soil types, provided they are not waterlogged. Its natural habitat often involves cool, moist microclimates within these alpine and subalpine zones. Cultivation requirements for Asplenium altajense, if attempted, would mirror these conditions, necessitating a cool environment, consistent moisture, and good drainage, ideally in a shaded rock garden setting or a terrarium. While Asplenium altajense is not widely cultivated for ornamental purposes, its ecological role within its native alpine ecosystems is significant. As a component of the flora in its specialized habitats, it contributes to ground cover and soil stabilization on rocky slopes. Ferns, in general, play a role in nutrient cycling and providing microhabitats for small invertebrates. There is no established record of Asplenium altajense having significant medicinal, culinary, or economic importance. Its primary significance lies in its botanical identity and its presence as a representative of the fern flora in the Altai mountain range. Interesting adaptations of this species include its ability to survive in harsh, rocky environments, often with limited soil availability, and its tolerance to the temperature fluctuations characteristic of high-altitude regions. The dark stipe may offer some protection against intense solar radiation at higher elevations.