Echinocereus russanthus (L1076 Santa
Clara Canyon, Chih. Mx)
The flowers are
rust-red with darker purplish maroon midstripes
and greenish-yellow anthers, Flowering March June.
SB420 Brewster County, Texas, USA
Description: Usually single stemmed cacti that
may branch and form clusters, some having as many as a dozen.
Erect, spheric to short cylindric, 8-30 tall and 4-8 cm in diameter;
ribs 10-20, crests prominent, slightly to conspicuously undulate;
areoles 3-12 mm apart.
Spines: Interlocking, bristle-like slender, typically
reddish to brown (but also white or yellowish) obscuring the stems,
radiating in all directions.
Flowers: 2-3.5 × 1.5-3 cm; rust-red, often with darker purplish
maroon midstripes, anthers greenish-yellow Flowering: March -
Fruits: yellowish green to dark green, dark purple, or reddish
tinged, 6-17 mm, pulp white; fruiting 2 months after flowering.
Cultivation: In culture E. russanthus
is without problems and regularly shows its small purplish flowers
if we provide an adequate winter rest period.
It is sensitive to overwatering (rot prone) needs good drainage, Keep
drier and cool in winter. Need full sun; Very cold resistant
hardy to -20° C or less for short periods of time.
Propagation: Seeds or cutting (if available)
Photo of conspecific taxa,
varieties, forms and cultivars of
plants belonging to the
is part of the
E. viridiflorus compless that comprises a large number of
taxa, differing in various combinations of flower color, spine color,
number and thickness of central spines, and other characters, including
floral scent. Wherever such taxa are
sympatric they intergrade; all are freely interfertile in the
greenhouse. Among them:
E. viridiflorus var. viridiflorus: (Typical form)
With small stems and relatively pure yellow flowers, extends
from central New Mexico and the Texas Panhandle to South Dakota. (E.
viridiflorus var. robustior) is a more robust form but not
sufficiently differentiated and considered merely a local
variant of E. viridiflorus v. viridiflorus.
E. viridiflorus var. chloranthus (E. chloranthus) with the
most numerous central spines (five or more per areole), giving the
plants a bristly appearance, are often considered a separate species.
viridiflorus var. russanthus (E. russanthus)
: Plants with a bristly appearance usually with reddish
or russet flowers. Yellow-spined plants may occur at high altitudes.
var. cylindricus (E. chloranthus var.
Cylindricus) : The common morphotype at middle altitudes in
Texas and southeastern New Mexico has 0-2(-3) central spines.
E. viridiflorus var. correllii (E.
chloranthus var. Cylindricus "corellii") A poorly
defined, yellow-spined population near Marathon, Texas.
E. viridiflorus var. neocapillus (E.
chloranthus var. neocapillus): Remarkable for its softly
hairy, not sharply spiny, seedlings.
- E. chloranthus subsp. rhyolithensis
Bristly red-spined plants from New Mexico.
Echinocereus viridiflorus in the broad
sense may prove
paraphyletic with respect to
davisii, but they are
phenologically isolated, with E. davisii flowering
earlier and thus appearing reproductively isolated in the wild.
Chihuahua, Mexico, North to Western Texas.
Conservation status: Listed in
CITES Appendix II
- Echinocereus viridiflorus var. russanthus
- Echinocereus chloranthus var. russanthus (Weniger)
Lamb. ex Rowley
- Echinocereus russanthus ssp. fiehnii
- Echinocereus russanthus var. fiehni
- Echinocereus russanthus ssp. weedinii,
E. russanthus L1076
This species is heavily covered with a mass
of interlocking bristlelike slender spines
radiating in all directions.
The flowers are tiny rusty-red
and have a very spiny calyx.