Xerophyte

Central Spines

0-4, 3-30 mm long, thicker, acicular.

Seeds

Helmet-shaped, dorsally slightly keeled, 1,6 mm long, 1,2 mm wide, 1,0 mm thick, testa opaque with thin tubercules.

Description

Echinopsis paraguayensisSN|8384]]SN|8384]] is is a local or morphological form of the widespread and variable Echinopsis oxygonaSN|8376]]SN|8376]]. It was briefly mentioned by Mundt (Monatsschr. Kakteenk. 13

Flowers

ca 22 cm long , fragrant. Nectar camber about 5 cm long. Tube funnel-shaped up to 13 cm long with small, narrow pointed scales filled by brown woolly hairs. Inner perianth segments 5 cm long, 2 cm wide, mucronate, white. Outer perianth segments narrower, white with green midrib. stigma-lobes 14, yellow, 1 cm long.

Spines

Brown or black, becoming grey, variable (depending on specimens).

Ribs

8-12, slightly tuberculated, 1,5-3 cm in height, triangular in cross section, sides sligly convex, separating grooves very close at their base .

Stem

Green, 5-9 cm thick, elongated (20-50 cm long), branching profusely from the base.

Marginal Ribs

3-11, 2-25 mm long, more or less acicular.

Fruits

Green, 4 cm long, 2 cm thick.

Areoles

Nearly orbicular, white woolly, 2-4 mm in diameter, slightly recessed in the rib, 1-2 cm apart.