First appeared in:

 Britton & Rose's The Cactaceae

6. Trichocereus bridgesii (Salm-Dyck).

Synonyms

Description:
   Tall, 2 to 5 meters high, more or less branching, pale green, a little glaucous; branches 1 to 1.5 dm. in diameter, 4 to 8-ribbed; ribs obtuse, separated by broad but shallow intervals; areoles large, about 2 cm. apart; spines 2 to 6, yellowish, acicular to subulate, very unequal, sometimes 10 cm. long, not swollen at base; flowers large, 18 cm. long; flower-tube 5 to 6 cm. long; throat broad; inner perianth-segments oblong, perhaps white, 5 to 6 cm. long; scales on ovary and flower-tube small, sometimes only 3 to 4 mm. long, scattered, bearing numerous hairs in their axils; fruit scaly, long-hairy, 5 to 6 cm. long.

   Type locality: Not cited.

   Distribution: About La Paz, Bolivia, where it is frequently grown as a hedge plant or placed on the tops of walls for the protection of gardens.