Echinocereus Engelmann (1848)

(Latin "echinus" = hedgehog; Latin "cereus" = waxy, candle)
a genus of columnar cacti, because of its spination and short columnar stems

short columnar to oblong to flat globular, soft fleshy, forming clumps
ribs very different, often less than10; spines partly spreaded, partly pectinate, colored
flowers large, last for a long time, calyx and tube acicular spined
stigma mostly green; fruits strong spined, juicy; seeds small to medium size, black

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Distribution

Mexico - northern of Mexico City to
USA - California, Utah, Wyoming and South Dakota
very warm steppes

Growth period

sunny and hot, but some differences are recommend
1. with green, less spined stems, are easy to cultivate,
    should be protected against blazing sun in spring, after the flower time placing on a sunny location
2. with stronger spined stems, are somewhat sensitive to too much water, carefully watering
    placing on a location with full sun exposure
permanent moisture is to avoid, first watering should be in March
then constant watering, but always after the soil is dried, constant slightly moisture is needed to form buds during the spring
in early summer enough watering, in high summer and early fall sparsely watering
from late fall on to early spring keep them absolutly dry

Winter period

very bright and absolutly dry with a minimum of 42–50 F (6–10°C)
shrink of the stems is usual
some species are cold hardy and it is possible to cultivate them outdoor the whole year around

Soil-mixture

minerally, nutritious and peremable to water
addition of quartz gravel, pumice, expanded slate and some humus
   
Echinocereus chloranthus (G. Engelmann) Hort. F. A. Haage (1859)
 
SB506 - Doña Ana County,
New Mexico, USA
       
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Habitat - Bishop's Cap, Doña Ana County,
New Mexico, USA
       
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Field number

SB506 - collected by Steven Brack

Habitat

USA
Texas - El Paso, Hudspeth und Culberson Counties
New Mexico - Doña Ana, Eddy und Otero Counties
in 900–1850 m Höhe

Description

stems 1.5–2.7 in (4–7 cm) Ø
10–18 ribs
spine color and length very variabel
spines white, often with purple tip
central spine mostly purple, upper ones shorter
flowers 1 in (2.5 cm) long, sparingly opens, funnel shaped, brownish green

Flowering time

April–June in cultivation
March–May in habitat
Comment Echinocereus chloranthus SB506 is with rain protection to about -4 F (- 20°C) cold hardy.
Synonyms Cereus chloranthus G. Engelmann (1856)
Echinocereus viridiflorus
var. chloranthus (G. Engelmann) C. Backeberg (1960)
Echinocereus viridiflorus
fa. chloranthus (G. Engelmann) H. Krainz (1967)
Echinocereus viridiflorus
ssp. chloranthus (G. Engelmann) N. P. Taylor (1997)
CITES Appendix II
 
Description of "Kakteen von A bis Z" by Walter Haage with courtesy by Kakteen-Haage made available.
Picture 4 with courtesy by © Rob Romero, Tucson, Arizona made available.

 

 

 

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