| Echinocereus pacificus | |
|---|---|
 | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Order: | Caryophyllales |
| Family: | Cactaceae |
| Subfamily: | Cactoideae |
| Genus: | Echinocereus |
| Species: | E. pacificus |
| Binomial name | |
| Echinocereus pacificus | |
| Synonyms | |
| |
Echinocereus pacificus is a species of cactus native to Mexico.
Echinocereus pacificus grows solitary, in clumps of 30–60 cm (12–24 in) in diameter containing around 100 stems. Stems are cylindrical to elongated shoots 5 to 6 cm (2.0 to 2.4 in) long, with 10 to 12 ribs and a 4 to 5, strong, upright central spine that is white or light gray with a darker tip, measuring 25 mm (0.98 in) in length. Additionally, there are 10 to 12 spreading, straight, whitish or grayish radial spines that are 5 to 10 mm (0.20 to 0.39 in) long. The flowers of are cup-shaped and deep red orange and 2.5 to 4 cm (0.98 to 1.57 in) in diameter. They appear in the upper half of the shoots. The spherical, fleshy fruits are spiny, 1.2 to 1.6 mm (0.047 to 0.063 in) long. [2] Chromosome count is 4n=44 [3]
There are two recognized subspecies: [4]
| Image | Scientific name | Distribution |
|---|---|---|
 | Echinocereus pacificus subsp. mombergerianus(G.Frank) W.Blum, W.Rischer & Rutow | Mexico (N. Baja California) |
| Echinocereus pacificus subsp. pacificus | Mexico (NW. Baja California) | |
Plants are found growing on granite slopes and xeric scrub in Baja California, Mexico at elevations around 110 to 2600 meters. Plants are found growing along with Adenostoma fasciculatum , Stipa speciosa , Arctostaphylos peninsularis , Dudleya pulverulenta , Lotus rigidus , Nolina microcarpa , Pinus monophylla , Rhamnus crocea , Opuntia phaeacantha , Cylindropuntia acanthocarpa , Pinus quadrifolia , Ferocactus viridescens and Malosma laurina . [5]
The plant was first described by George Engelmann in 1886 as Cereus phoeniceus var. pacificus. It was elevated to a species in 1922 by Nathaniel Lord Britton and Joseph Nelson Rose.
Oroya is a genus of cacti, native to Peru. The genus is widespread in the Peruvian Andes.
Echinocereus triglochidiatus is a species of hedgehog cactus known by several common names, including kingcup cactus, claret cup cactus, red-flowered hedgehog cactus and Mojave mound cactus. This cactus is native to the southwestern United States and northern Mexico, where it is a resident of varied habitats from low desert to rocky slopes, scrub, and mountain woodland. E. triglochidiatus is the official state cactus of Colorado.
Ferocactus peninsulae is a barrel cactus in the genus Ferocactus of the family Cactaceae.
Lobivia cinnabarina is a species of cactus first described in 1885.
Echinocereus arizonicus is a species of cactus native to the Chihuahuan Desert region of Chihuahua, southwestern New Mexico and southeastern Arizona, as well as in the Superstition and Mescal Mountains of Central Arizona at elevations between 1400 to 1900 meters.
Echinocereus pectinatus is a species of hedgehog cactus.
Thelocactus rinconensis, synonyms including Thelocactus nidulans, is a species of cactus. It is endemic to north-east Mexico.
Thelocactus leucacanthus is a species of cactus. It is endemic to Mexico.
Ferocactus flavovirens is a species of Ferocactus from Mexico.
Denmoza is a monotypic genus of cacti. Its only species, Denmoza rhodacantha, is native to northwest Argentina.
Armatocereus cartwrightianus is a species of Armatocereus from Ecuador and Peru.
Armatocereus godingianus is a species of Armatocereus from Ecuador and Peru.
Ferocactus mathssonii is a species of Ferocactus found in Mexico.
Cochemiea poselgeri is a species of Cochemiea found in Mexico
Cochemiea halei is a species of Cochemiea found in Mexico.
Cochemiea pondii is a species of Cochemiea found in Mexico.
Echinocereus barthelowianus is a species of cactus native to Mexico.
Echinocereus scopulorum is a species of cactus native to Mexico.
Echinocereus grandis is a species of cactus native to Mexico.
Echinocereus santaritensis is a species of cactus native to Mexico and the United States.
Media related to Echinocereus pacificus at Wikimedia Commons
Data related to Echinocereus pacificus at Wikispecies