Thelocactus lauserri is very distinguishable due to its small white flowers that can be observed to have a pink central stripe. Flowers are funnel shaped and between 25 and 45 mm long (1). The grayish green stems are divided into ribs, spherical, and short, ranging from 7-10 cm tall to 5-8 cm wide (1). The Tubercles are rounded and range from 5-9 mm wide and 8-12mm in height (1). The areoles are round and typically 5-6 mm in diameter (1). Central spines range from 6-10 cm long and 2 to 5 mm at the base. These spines are typically brown, white , red or yellowish in color (1). A secondary defense are the radial spines which range from 18-28 mm in length. These radial spines are a silvery white or yellow shade of color (1). This cactus will start forming buds during the months of early fall. Flowers will start to bloom between the months of January and February (1).