Acanthocereus baxaniensis (Karw. ex Pfeiffer) Borg 1937
- Cereus baxaniensis Karwinsky ex Pfeiffer 1837
Plants shrubby, 40-60 cm (16-24 in) high. Stems short, arising basally, gray-green, erect, producing new buds from the tips of the older stems.
Ribs 5-7, thin, to 1.5 cm (0.6 in) high.
Areoles gray, to 3.5 cm (1.4 in) apart.
Central spine one, awl shaped, erect, whitish, to 3 cm (1.2 in) long.
Radial spines 6-8, whitish with yellow tips, 0.5-1.5 cm (0.2-0.6 in) long.
Flowers to 11 cm (4.3 in) long. Fruits ovoid to elliptical, reddish purple, to 5 cm (2 in) long and 4 cm (1.6 in) in diameter, with large areoles bearing white wool and spines.