Xerophyte

Seeds

Boat-shaped, 2 mm long and 1.6 mm wide, maroon, shiny. Testa, smooth withnetted drawing.

Note

This member of the Cactaceae family was given this name for the occurrence near Capilla Tuya, Paraguay.

Spines

4 on each side, pectinated, light brow, thickened and bulbous at the base, horn-colured to almost transparent above, up to 1 mm long.Flowers Funnel-shaped, 24 mm long and 20 mm wide, bright-lemon yellow. Pericarpel 6 mm long, 5 mm wide, base bare, above with light brown bristles and white hairs. Receptacle 4 mm long, covered with yellow-brown bristles and white hairs. Outer perianth segments spatulate with fine bristly tips, white to dirty-yellow, with greenish-yellow strip at the bottom. Inner perianth segments spatulate, pointed, bright lemon yellow. Style 1 mm long, light yellow. Primary stamens 10 mm long erect, close to the style, light yellow. Secondary stamens 5 mm long, dull yellow. Anthers 0.8 mm long, yellowish-white. Nectar chamber 0.5 mm wide open. Seed cavity 3 mm long, 3.5 mm wide.

Ribs

Up to 20, very flat, ash-green separated by dull-green dividing lines, and black green to purple moon-shaped markings under the areoles to 5 mm wide.

Stem

Single, 30-35 mm tall, to 40 mm in diameter.

Fruits

Round, 8 mm in diameter, areoles with short light-brown bristles and white wool.

Areoles

Oval, hairless or with little brown felt.