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Echinocereus pectinatus var. rigidissimus (Engelm.) Rümpler in C.F.Först.
Handb. Cacteenk. (ed. 2 - Rümpler) ed. 2. 818. 1885
Family: CACTACEAE

Accepted Scientific Name: Echinocereus rigidissimus (Engelm.) Rose
Contr. U.S. Natl. Herb. 12: 293. 1909

Echinocereus pectinatus var. rigidissimus (Echinocereus rigidissimus) Photo by: Valentino Vallicelli
GL501 Peloncillo Mts., NM. A jewel of the Sonoran Desert, this species has a tight lattice of tiny spines that hide the body of the plant.

Synonyms:

See all synonyms of Echinocereus rigidissimus
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Accepted name in llifle Database:
Echinocereus rigidissimus (Engelm.) Rose
Contr. U.S. Natl. Herb. 12: 293. 1909
Synonymy: 6 Accepted name in llifle Database:
Echinocereus rigidissimus subs. rubispinus (G.Frank & A.B.Lau) N.P.Taylor
Cactaceae Consensus Init. 3: 9. 1997
Synonymy: 5
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Common Names include:
ENGLISH: Arizona Rainbow Hedgehog Cactus, Sonorian Rainbow Cactus, Arizona Rainbow Cactus, Rainbow Hedgehog Cactus
SPANISH (Español): Cabeza de Viejo

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

  • Echinocereus rigidissimus (Engelm.) Rose: Stems up to 10 cm thick with 15-23 radial pectinated spines per areole that hide the body of the plant.  Each year’s growth is differentiated by differently coloured band of spines, hence the common name Arizona Rainbow.
  • Echinocereus rigidissimus f. cristata hort.: Crested form.
  • Echinocereus rigidissimus subs. rubispinus (G.Frank & A.B.Lau) N.P.Taylor: (a.k.a. Ruby Rainbow) has stems that only get about 7 cm thick with 30-35 shorter radial spines per areole. The spines are also more Ruby/pinkish coluoured compared to the 'rigidissimus' subspecies and are some of the showiest in the cactus kingdom.
  • Echinocereus rigidissimus subs. rubispinus f. albiflorus hort.: has white flowers and paler creamy white spines, all the other characteristics namely size and shape of spines, stems, flowers, fruits, roots etc.it is comparable to the standard from.


16385 valentino Valentino Vallicelli
Echinocereus pectinatus var. rigidissimus (Echinocereus rigidissimus) Photo by: Valentino Vallicelli
16384 valentino Valentino Vallicelli
Echinocereus pectinatus var. rigidissimus (Echinocereus rigidissimus) Photo by: Valentino Vallicelli

14151 valentino Valentino Vallicelli
Echinocereus pectinatus var. rigidissimus (Echinocereus rigidissimus) Photo by: Valentino Vallicelli
17949 valentino Valentino Vallicelli
Echinocereus pectinatus var. rigidissimus (Echinocereus rigidissimus) Photo by: Valentino Vallicelli

18044 valentino Valentino Vallicelli
AG60 (Alan Gilmore) Nogales, Santa Cruz County, Arizona, USA (Echinocereus rigidissimus) Photo by: Valentino Vallicelli
26745 agocs Agócs György
Growing habit. Mexico. (Echinocereus rigidissimus) Photo by: Agócs György

26744 agocs Agócs György
Nestled on the rock. Mexico. (Echinocereus rigidissimus) Photo by: Agócs György
14158 cactus-art Cactus Art
Echinocereus pectinatus var. rigidissimus (Echinocereus rigidissimus) Photo by: Cactus Art

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