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Cereus roemeri Engelm.
Mem. Amer. Acad. Arts ser. 2, 4(1): 50. 1849 [10 Feb 1849] ; Pl. Fendler. [not Mühlenpfordt].
Family: CACTACEAE

= Echinocereus roemeri Engelm. ex F.Haage
Preis-Verz. Cact. 23. 1849 . [not Mühlenpfordt].

Accepted Scientific Name: Echinocereus coccineus Engelm. in Wisliz.
Mem. Tour N. Mexico [Wislizenus] 93, adnot. 1848 [Apr 1848] Wisliz., Wisliz., Wisliz.

Cereus roemeri (Echinocereus roemeri) Photo by: Valentino Vallicelli
DJF1306 (Collector: David J. Ferguson) Mela Creek, Llano Co. TX USA (MG 191,29) Some are difficult to see until the bright orange-red blooms in Spring make them impossible to miss!

Synonyms:

See all synonyms of Echinocereus coccineus
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Accepted name in llifle Database:
Echinocereus coccineus Engelm. in Wisliz.
Mem. Tour N. Mexico [Wislizenus] 93, adnot. 1848 [Apr 1848]
Synonymy: 46 Accepted name in llifle Database:
Echinocereus coccineus subs. paucispinus (Engelm.) W.Blum, Mich.Lange & Rutow in W.Blum et al.
Echinocereus Monogr. (preprint) [4] (1998)
Synonymy: 5
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Common Names include:
ENGLISH: White-spined Claret-cup Cactus, Golden Rainbow Hedgehog

Subspecies, varieties, forms and cultivars of plants belonging to the Echinocereus coccineus group

  • Echinocereus arizonicus subs. matudae (Bravo) Rutow: has larger stem, up to 50 cm tall, and 12 cm in diameter, a reduced number of ribs with fewer short, thick spines. Distribution: Mexico, Chihuahua.
  • Echinocereus coccineus Engelm. in Wisliz.: It has stems that are 2,5 to 5 cm thick, with 8 to 11 ribs. The spines are not differentiable between centrals & radials. There are 0 to 4 central spines and 5 to 20 radial spines per areole. The red-orange flower is 7-8 cm across, and the stigma has 7 or 8 lobes.
  • Echinocereus coccineus var. arizonicus (Rose ex Orcutt) D.J.Ferguson
  • Echinocereus coccineus var. gurneyi (L.D.Benson) S.Brack & K.D.Heil: Stems darker green in color compared to the other varieties, and 10 cm thick. The flowers are Orangish-red. This variety is often included into the 'coccineus' subspecies. It looks like coccineus, but is very clustering!
  • Echinocereus coccineus subs. paucispinus (Engelm.) W.Blum, Mich.Lange & Rutow in W.Blum et al.: It has stems that are about 6 cm thick, with 5 to 8 acute narrowly furrowed ribs that have areoles that are spa ced 0,5 to 1 cm apart. It has 0 or 1 central spine, 1.4 inches long, and 3 to 6 radial spines that are curved and straight. The flower is red with a hint of orange & shaped like a funnel about 5 cm long, having 7 lobes of the stigma.
  • Echinocereus coccineus var. rosei (Wooton & Standl.) A.D.Zimmerman: This plant has relatively long, white wool in the areoles of the ovary and fruit. Flowers scarlet (pink and orange flowered plants are also reported)
  • Echinocereus roemeri Engelm. ex F.Haage


26931 RapCactus Raimondo Paladini
Echinocereus roemeri Bw112 - Mao221 (Echinocereus roemeri) Photo by: Raimondo Paladini
14143 valentino Valentino Vallicelli
An hermaphroditic flower. (Echinocereus roemeri) Photo by: Valentino Vallicelli

14142 valentino Valentino Vallicelli
Cereus roemeri (Echinocereus roemeri) Photo by: Valentino Vallicelli
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