Xerophyte

种子

Frosted black, about 1.2 mm long, 0.8 mm wide, 0.5 mm thick, dorsally strong-bulges; Testa very fine grained and roughly ribbed. Hilum oval, white.

根

Short, with a thick tap-root beet with sometimes a thinner neck.

花

Apical, odorless, approx 33 mm long, 30mm wide open, funnel-form to campanulate. Pericarpel ca. 7 mm long, grass green, with tiny narrow yellowish scales and dull white wool. Nectary pale green, tubular, 3 mm high, 4 mm wide, half closed by the stamens bases.Tube funnel-form, about 1 cm high, inside pale green, outside grass green, richly scaled to the top with whitish, straight, almost piercing bristles. Stamens pale greenish-yellowish, the lowest ones 6 mm long, the uppermost ca 10 mm. Anther lemon yellow. Style 2 cm long, bottom white, topsalmon coloured, stigma lobes about 11, nearly smooth, yellow, 3-4 mm long. Tepals lanceolate, ca. 15 mm long, 5 mm broad, base slightly narrower, rounded, apex toothed, strongly silk-shining, light brownish-yellow to salmon-coloured with purple middle stripe, which is wide down and does not go up to the tip.

刺

Strongly curved, rigid, never flexuose and noticeably thickened at the base. Radial spines 10-15, 15-40 mm long, curved inward and upward light at first greyish-brown to greyish-yellowish, tips darker, grey with age. Central spines about 4-7, bent upwards, 2-5 cm long.

棱

13-17, about 10-12 mm high,often curved, blunt, at the areole, laterally compressed, with clear chins under the areloes. Often tuching each other in the longitudinally.

茎

Solitary, globose, later elongated, ca 9-12 cm thick, bluish-grey-green.

果实

About 20 mm long, 15 mm thick, reddish-green to almost red, with a lot of white woolly flakes. The seeds fall from the fruit through a round basal pore (hole) opening after the detachment of the fruit from the areola.

刺座

7-10 mm long, 3-5 mm wide, white felt, 5-10 mm free distance.