Cleistocactus smaragdiflorus F A C Weber Britton

Rose 1920 Cereus smaragdiflorus F. A. C. Weber 1894

Plants shrubby, branching basally with arching to creeping stems, to 1 m (3.3 ft) high. Stems 2-3 cm (0.8-1.2 in) in diameter. Ribs 12-14, low. Central spines 4-6, yellowish or brown, 15-35 mm (0.6-1.4 in) long. Radial spines 10-14, needle-like, to 10 mm (0.4 in) long. Flowers straight, slightly constricted above the pericarpels, yellow to emerald green, 4-5 cm (1.6-2 in) long; perianth parts not spreading; styles slightly exserted. Fruits globose, to 1.5 cm (0.6 in) in diameter. Distribution: northern Argentina.

Cleistocactus strausii (Heese) Backeberg 1934 Pilocereus strausii Heese 1907, Cereus strausii (Heese) Vaupel 1913, Borzicactus strausii (Heese) A. Berger 1926

Plants shrubby, branching basally with several erect stems, 1-3 m (3.3-9.8 ft) high. Stems light green, to 8 cm (3.1 in) in

Cleistocactus Tarijensis

Cleistocactus sextonianus

Cleistocactus Smaragdiflorus

Cleistocactus strausii diameter, completely covered by dense white spines. Ribs 2530. Areoles close set. Central spines about 4, pale yellow, to 20 mm (0.8 in) long. Radial spines 30-40, hairlike, white, 15-50 mm (0.6-2 in) long. Flowers slightly curved, dark red, 8-9 cm (3.1-3.5 in) long; floral tubes with silky hairs. Fruits pear shaped, red, to 2 cm (0.8 in) in diameter. Distribution: southern Bolivia and northern Argentina.

Cleistocactus tarijensis Cárdenas 1956 Cleistocactus compactus Backeberg 1957

Plants shrubby with several erect branches, 60-70 cm (24-28 in) high. Stems cylindrical, fresh green, tapering slightly, 4-5 cm (1.6-2 in) in diameter. Ribs about 20, low, obtuse. Areoles round, prominent, whitish, close set. Spines about 20, not differentiated as centrals and radials, thin, needle-like, whitish to straw yellow, to 2.5 cm (1 in) long. Flowers often numerous, borne near the stem tips, magenta, bent, to 4 cm (1.6 in) long. Fruits globose, light red with greenish scales, to 1.5 cm (0.6 in) in diameter. Distribution: Cercado province, Tarija, Bolivia.

Cleistocactus tenuiserpens Rauh & Backeberg 1957 Borzicactus tenuiserpens (Rauh & Backeberg) Kimnach 1960, Bolivi-cereus tenuiserpens (Rauh & Backeberg) Backeberg 1962, Borzi-cactella tenuiserpens (Rauh & Backeberg) F. Ritter 1981

Plants shrubby, branching basally, to 2 m (6.6 ft) high. Stems very slender, green, 8-10 mm (0.3-0.4 in) in diameter. Ribs 9-10, low, somewhat arched. Central spines 1-2, erect, to 25

mm (1 in) long. Radial spines very slender, spreading, whitish, 2-8 mm (to 0.3 in) long. Flowers red, to 5 cm (2 in) long. Fruits green to red, to 2 cm (0.8 in) in diameter. Distribution: northern Peru. Cleistocactus tenuiserpens is poorly known.

Cleistocactus tominensis (Weingart) Backeberg 1935 Cereus tominensis Weingart 1931, Borzicactus tominensis (Weingart) Borg 1937

Cleistocactus crassicaulis Cárdenas 1961 Cleistocactus mendozae Cárdenas 1963 Cleistocactus viridialabastri Cárdenas 1963 Cleistocactus clavicaulis Cárdenas 1964 Cleistocactus capadalensis F. Ritter 1980

Plants shrubby, unbranched at first, later branching basally with erect stems, to 2 m (6.6 ft) high. Stems to 5 cm (2 in) in diameter. Ribs 18-22, low, with transverse furrows. Spines 89, not easily differentiated as centrals and radials, thin, some erect, later stouter, yellowish to reddish brown, becoming gray, to 20 mm (0.8 in) long. Flowers narrow, green to yellow to red, or sometimes green below and red above, to 2.5 cm (1 in) long. Fruits globose, pale pink, to 1.8 cm (0.7 in) in diameter. Distribution: Azurduy province, Chuquisaca, Bolivia.

Cleistocactus tupizensis (Vaupel) Backeberg 1934 Cereus fi/p/ze/is/sVaupel 1916

Plants shrubby, branching basally with several erect stems, to 1.5 m (4.9 ft) high. Stems to 6 cm (2.4 in) in diameter. Ribs 14-24, low. Areoles large. Central spines 2, reddish brown to

Cleistocactus Vulpis Cauda
Cleistocactus tenuiserpens
Cleistocactus

Cleistocactus vulpis-cauda

Cleistocactus tupizensis

Cochemiea 165

whitish, to 4.5 cm (1.8 in) long. Radial spines 15-20, unequal, glassy white, brittle, crowded. Flowers slightly curving, wine red to whitish, to 8 cm (3.1 in) long; perianth parts oblique. Distribution: Tupiza, Potosí, Bolivia.

Cleistocactus varispinus f. Ritter 1964 Cephalocleistocactus schattatianus Backeberg 1963

Plants shrubby, branching well above ground level with many upright stems. Stems green, 50-100 cm (20-39 in) long, 3-5 cm (1.2-2 in) in diameter. Ribs 14-18, indistinctly notched. Areoles close set, white. Spines 30-40, not easily differentiated as centrals and radials, 1-2 much longer than the others, pale yellow to golden yellow or brownish yellow, straight, needle-like, 10-40 mm (0.4-1.6 in) long. Flowers straight, white with greenish tips, to 4.8 cm (1.9 in) long. Fruits violet-red, to 2 cm (0.8 in) long. Distribution: La Paz, Bolivia.

Continue reading here: Cleistocactus vulpiscauda F Ritter Cullmann 1962

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