The plant stems reach 20 to 60 cm in height, glabrous (smooth) in the upper part and scaly in the lower.

From the upper third of the stem arise leaves that are a vivid green in colour and arranged spirally and twisted so that their tips are on the side.

The flowers are large and showy, the tepals being 4.5–5.5 cm in length, being an intense pink color with a purple centre.

[2][3] The genus Alstroemeria was originally described by Johan Peter Falk and his thesis supervisor Carl Linnaeus in his 1762 dissertation Planta Alströmeria,[4] with three species, including A. pelegrina.

[5] Alstroemeria pelegrina is endemic to the Norte Chico and central regions of Chile, but it is also found in Peru.