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  Echinocereus adustus
(Syn: Echinocereus pectinatus)
CACTUSPEDIA       

 


E. adustus
SB72 Cosihuiriachi, Chih. Mexico
Very nice, frilly, purple-pink flowers, somes plant with black centrals.


Description:
Usually solitary.
Stem: Green, short, cylindrical, up to 20 cm tall 4(12) cm in diameter.
Ribs: 11 to16, 5-12 mm long
Root: Fibrous.
Areoles: Ellipsoidal, length 3–4mm, width 2 mm, close set, distance 4-7 mm, at first woolly, then naked.
Radial spines: 5-18, pectinated 16-23 mm long. Cream with darker tips add-pressed.
Central spines: 0 - 1, up to 35 mm long, brown-black, stiff and straight.
Flowers: Magenta-pink, throat a lighter shade, 45-60 mm long, 40-55 mm wide. Tube length 20-40 mm, filament 15-25 mm long, stylus 25-40 mm, yellow, stigma lobes 5-6 yellowish-green.
Fruit: Ovoidal, brownish-green, length15, diameter 10.  They dry and break at maturity and ripe in 2 months.
Seed: 1-1,5 mm black.
Remarks:
Adult plants, either without central spines, or with 1 central spine can be found.  But with the exception of the absence or existence of centrals, all the other characteristics are absolutely identical, namely size and form of ribs, number, size and arrangement of radial spines, flowers, fruits and seeds.  Furthermore this species is one of those Echinocereus which pass a purely radial-spined long youth stage, in which they are already floriferous. Most of the  plants after several years develop central spines, giving the plant its sea urchin appearance.
 
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Cultivation:
In culture E. adustus is without problems, easy to grow, very attractive and regularly shows its beautiful flowers, if provided with an adequate winter rest period. It is sensitive to over-watering (rot prone), and needs good drainage Keep drier and cool in winter.  Needs full sun.  In the summer they need an airy location in bright sun; well watered when it's hot. To achieve the best spine density give these plants lots of sun. In the winter light, cool, and absolutely dry conditions. Very cold resistant  above  -12° C or less for short periods of time. In mild climate they grow well when planted freely outside in well-drained soil.

Propagation: Seeds (usually), it also can be grown from cuttings, as it can branch from the base.
 

Photo gallery: Alphabetical listing of Cactus and Succulent pictures published in this site.

Photo gallery Echinocereus

Family: Cactaceae (Cactus Family)

Scientific name:  Echinocereus adustus Engelm.
in Wisliz., Mem. Tour. No. Mex. 104. 1848.

Taxonomy: TL:
Chihuahua: Cusihuiriachic, 1900m NN, WISLIZENUS 1846
Holotype:
Co- sihuiriachi, Mexico, 1846, A. Wislizenus s.n. (2 sheets).
Neotype:
México: Chihuahua: Cusihuiriachic, J.N. ROSE 11664, 02 April - 03 April 1908 [US 454379]

Origin:  Mexico, Chihuahua: Cusihuiriachic, Sahuirachic and north of city of Chihuahua

Habitat:  Desert grassland, on loamy soils, on stony hills, altitude 1800-2400m

Conservation status: Listed in CITES appendix 2.

 



 A young specimen



A mature specimen

Synonyms:

  • Cereus adustus (ENGELMANN) ENGELMANN. In: A. GRAY. - Pl.Fendl.: 50 (1849)
  • Echinocereus radians ENGELMANN.
    In: WISLIZENUS. - Mem.Tour North.Mex.: 104 (1848)
  • Echinocereus. rufispinus ENGELMANN.
    In: WISLIZENUS. - Mem.Tour North.Mex.: 104 (1848)
  • Cereus rufispinus (ENGELMANN) ENGELMANN. In: A. GRAY. - Pl.Fendl.: 50 (1849)
  • Echinocereus pectinatus var. adustus SEITZ. In: Cat.cactearum cultarum: 11 (1870)
  • Echinocereus pectinatus var. rufispinus SEITZ. In Cat.cactearum cultarum: 11 (1870)
  • Echinocereus pectinatus var. adustus DAUL.  In: Handbuch Kakteenkunde: 78 (1890)
  • Echinocereus pectinatus f. adustus VOSS. In: Villmorin's Blumengärtnerei ed. 3: 378 (1894)
  • Echinocereus pectinatus f. rufispinus VOSS. In:Villmorin's Blumengärtnerei ed. 3: 378 (1894)
  • Cereus adustus var. radians (ENGELMANN) J. COULTER. In: Contr.U.S.Nat.Herb. 3: 387 (1896)
  • Echinocereus pectinatus var. adustus (ENGELMANN) SCHUMANN.
    In: Gesamtb.Kakteen: 271 (1898)
  • Echinocereus pectinatus var. rufispinus (ENGELMANN) SCHUMANN.
    In: Gesamtb.Kakteen: 271 (1898)
  • Echinocereus  caespitosus var. adustus (ENGELMANN) BORG.
    In: Cacti ed. 1: 174, (1937) nom.inval.
  • Echinocereus caespitosus var. rufispinus SCHUMANN ex. BORG.
    In: Cacti ed. 1: 174 (1937) nom.inval.
  • Echinocereus caespitosus var. adustus (ENGELMANN) BORG.
    In: Cacti ed. 3: 221 (1959) nom.inval.


 

Photo of conspecific taxa, varieties, forms and cultivars of Echinpsis pectinatus: (This taxon has lots of synonyms (like most Echinocereusi ), with several controversial varieties and subspecies):



 

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This old page has been moved! Click the link next on the right to enter the new Enciclopedia of Cacti. We hope you find this new site informative and useful.

The Encyclopedia of Cacti