Sclerocactus spinosior subs. nyensis
Cactaceae Syst. Init. 22: 23. 2007 [Mar 2007] nom. inval. without exact basionym page (Art. 33.4 note 1, ICBN)
Family
Cactaceae
Genus
Species
Sclerocactus spinosior subs. nyensis
Author
(Hochstätter) Lüthy
Chinese genus
白红山属
Chinese name
-
Primary
Accepted
DescriptionEdit description
Habit
Sclerocactus nyensisSN|19518]]SN|19518]] grows solitary stems and sometimes forms a cluster of two or three stems. In habitat it is normally invisible, except when in flower or after good rains. Older plants eventually lose the ability to retract.
Central Spines
(1-)4-7(-8) per areole, lower and lateral ones red or reddish brown and usually hooked 20-60 mm long, upper ones flat white, straight and rarely hooked 25-45 mm long.
Seeds
3-3.5 mm long, 2 mm wide, black, irregularly furrowed; testa with rounded papillae.
Description
Sclerocactus nyensisSN|13716]]SN|19518]] commonly known as the Nye County fishhook cactus, is a rare cactus species with reddish spines that may or may not be hooked. The rose-colored flowers appears in spring.
Flowers
Funnelform to campanulate, rose-coloured to magenta 3-4 cm long, 2-2.5 cm across. Outer tepals with greenish purple midstripes and rose-purple or magenta margins, cuneate-spatulate, usually 10-17 mm long and 5-8 mm wide; inner tepals rose-purple to magenta, largest tepals ovate-lanceolate, 18-22 mm long 6-8 mm wide; filaments green to yellow; anthers cream to yellow.
Blooming Season
Spring (in habitat the flowering period begins in May).
Spines
Dense, obscuring stems.
Ribs
Distinct, 12-15, with well-formed tubercles.
Stem
Spheric, cylindric, or elongate-cylindric, 5-12(- 16) cm long, 4-8(-10) cm in diameter.
Radial Spines
12-17, whitish, flat, straight, (8-)10-17(-20) mm long.
Fruits
Barrel shaped, 15-20 long, 7-15 mm across, green to tan, dry at maturity, indehiscent or irregularly dehiscent.