Xerophyte

Central Spines

One, up to about 3 cm long.

Description

Arrojadoa bahiensisSN|4844]]SN|4844]] (synonym Pierrebraunia bahiensisSN|4846]]SN|4846]]) is a solitary, globose to cylindrical, cactus that produce dense clusters of tubular pink flowers at the crown.

Note

“bahiensis” for the occurrence in the State of Bahia, Brazil.

Cephalium

Unlike other congeneric species that form a cephalium with bristles and wool, Arrojadoa bahiensisSN|4844]]SN|4844]] lacks this structure and its flowers appear numerous from the areoles on, and around the crown.

Flowers

Numerous, tubular, bright rose to pink, 3.2-3.9 cm long, 0.8-1 cm in diameter. The white tip of inner tepals contrast nicely with the pink tube. The plants bloom at night.

Spines

Finely needle-like, slightly flexible, short, yellowish to reddish brown, becoming grey with age.

Ribs

9–14, vertical, rounded on the edges, about 10-17 mm tall and up to 18 mm wide.

Stem

Green to grey green, initially spherical, gradually becoming short cylindrical up to 30 cm high and 8 cm wide, old plants may reach the hight of 110 cm and occasionally may branch from the base.

Radial Spines

6–11, as many as 23 on older areoles, erect or spreading, usually less than 1.6 cm long (noticeably shorter in young specimens), but on occasion up to 4 cm long.

Fruits

Globose to ovoid, rose to pink.

Areoles

Round, with creamy white or brownish wool at first, later naked.