Weberbauerocereus winterianus grows tree-shaped and reaches a height of 4 to 6 meters. The trunk branches grow approximately 2 meter long into parallel shoots with a diameter of 5 to 8 cm (2.0 to 3.1 in). The branches have 20 to 30 blunt ribs are up to 5 mm (0.20 in) high with dark areoles on it that are up to 4 mm (0.16 in) long. Areoles have dark, golden-yellow spines emerge from them. The 12 to 15 needle-shaped central spines are strong, growing up to 1.5 cm (0.59 in) long and the 20 to 30 fine marginal spines lie close to the shoots growing 5 to 15 mm (0.20 to 0.59 in) long. In the flowering area, the shoots are covered with fine, light yellow to golden yellow, bristle-like spines that are up to 7 cm (2.8 in) long.
The flowers open at night and are up to 7.5 cm (3.0 in) long. Its brown-red to green flower tube is covered with blackish-brown wool. The flower bracts are white or slightly pink. The barrel-shaped fruits are green to reddish and reach a diameter of up to 4 cm (1.6 in). They are covered with dense dark wool.[3]
Distribution
Weberbauerocereus winterianus is distributed in the Peruvian regions of Cajamarca and Ancash.
Taxonomy
The first description was made in 1962 by Friedrich Ritter.[4] The specific epithet winterianus honors the nursery owner Hildegard Winter (1893–1975), Friedrich Ritter's sister. Nomenclature synonym are Haageocereus winterianus (F.Ritter) P.V.Heath (1995) and Echinopsis winteriana (F.Ritter) Molinari & Mayta (2015).
