Xerophyte

Central Spines

Principal central spines one, sometimes up to 3, downward pointing, very stout 2-4(-6) cm long (usually less than 2 cm long in var. acranthus) yellow, yellowish-brown to brown and and darkening with age.

Description

Haageocereus acranthusSN|5512]]SN|5512]] (Formerly known as Binghamia acranthaSN|5514]]SN|5514]]) has thick very spiny stems, with a stiff erect habit of growth which normally do not branch, but over time new stems arise from the base to form a clump.

Flowers

Greenish white 6-8 cm long, 5-6 cm wide. Tube flared in upper half, greenish and covered by abundant white trichomes. Perianth-segments white or pale pink.

Blooming Season

Early summer.

Spines

Very coarse, continuing to grow on the trunk throughout the life of the cactus.

Ribs

12-14 somewhat tuberculate near the stem tips.Areoles Closely set, yellow to dark brown with yellowish woolly hairs. Flowering areoles well differentiated, woolly, white, generally disposed in ring-like pseudo- cephalia

Stem

Green erect or curving or upright, to 1-2(-3) m tall, 7-10 cm in diameter.

Radial Spines

Yellow, 20-30(-40), in 2-3 series, the outermost about 1 cm long.

Fruits

Round, green.