Xerophyte

Habit

Solitary at first, later forming low clumps with few to several upright or sprawling, stems.

Flowers

Fire yellow, funnel-shaped, diurnal, originating in the apical zone and are about 6-9 cm long and broad. Pericarpel and floral tubes with dense scales bearing long brown hairs.

Blooming Season

Open in the day in the spring.

Spines

Stout, needle-like, spreading, straight or slightly curved, reddish brown, up to 6 (or more)cm long.

Ribs

14-17 vertical, symmetrical, obtuse, low and rounded.

Stem

Cylindrical, stout, light green, branching from the base.

Fruits

Globose to ovoid, yellowish green or reddish.

Areoles

Whitish or brownish more or less approximate, 5-10 mm apart.