Myosotis albosericea plants are single rosettes, each with a central and often woody taproot, that grow together to form loose mats. The rosette leaves have
petioles 4–20 mm long. The rosette leaf blades are 4–12 mm long by 1–4 mm wide (length: width ratio 1.4–7.6: 1), narrowly oblanceolate, oblanceolate, narrowly obovate or obovate, widest at or above the middle, with an
acute apex. The upper and lower surfaces and margins of the leaf are densely covered in silky, long, straight, appressed, antrorse (forward-facing) hairs that are oriented parallel to the mid vein. Each rosette has 1–4 erect, unbranched, ebracteate
inflorescences that are up to 160 mm long. The cauline leaves are similar to the rosette leaves but smaller, and decrease in size toward the tip. Each inflorescence has up to 18 flowers, each borne on a short
pedicel, without a bract. The calyx is 3–5 mm long at flowering and 3–6 mm long at fruiting, lobed to half or three-quarters its length, and densely covered in antrorse, straight or flexuous, patent or sometimes appressed hairs. The corolla is yellow, up to 10 mm in diameter, with a cylindrical tube, petals that are obovate, broadly obovate or very broadly obovate, and small scales alternating with the petals. The anthers are partly exserted, with the tips only surpassing or equaling the scales (rarely fully included with the tips reaching the base of the faucal scales only). The four smooth, shiny, light to dark brown nutlets are 1.8–2.2 mm long by 0.8–1.2 mm wide and narrowly ovoid to ovoid in shape. The chromosome number of
M. albosericea is unknown. The pollen
of M. albosericea is unknown. It flowers and fruits from September–February, with the main flowering period December–February and the main fruiting period January–March. == Distribution and habitat ==