Pilosocereus purpusii

Stems slender, 2 to 3 meters high, simple or more or less branched; branches green, erect, 3 to 4 cm in diameter, usually simple; ribs 12, low, 5 to 6 mm high, separated by narrow intervals; areoles closely set, 10 mm apart or less on the lower part of the stem, but much closer together toward the top, on the young growth with long silky white hairs, but on the old parts without hairs; spines acicular, swollen at base, 1 to 3 cm long, bright yellow at first, in age gray.

P. purpusii

P. purpusii

P. purpusii