| Echinocereus adustus | |
|---|---|
 | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Order: | Caryophyllales |
| Family: | Cactaceae |
| Subfamily: | Cactoideae |
| Genus: | Echinocereus |
| Species: | E. adustus |
| Binomial name | |
| Echinocereus adustus Engelm. 1848 | |
| Synonyms | |
| |
Echinocereus adustus is a species of cactus native to Mexico.
Echinocereus adustus typically grows as a solitary cactus. [2] Its shoots are depressed spherical to short cylindrical, reaching up to 19 cm (7.5 in) long and 5 to 12 cm (2.0 to 4.7 in) in diameter, with fibrous roots. [2] It has 11 to 20 wavy, slightly tuberous ribs. [2] The cactus may have up to nine dark brown to blackish central spines, up to 3.2 cm long, with the top spine being very short and the bottom spines spreading horizontally. [2] It also has 8 to 31 white marginal spines with darker tips, up to 1.8 cm (0.71 in) long, with the radial spines being the longest. [2]
The short, funnel-shaped flowers are pink, appearing well below the shoot tips. [2] They are 3 to 10 cm (1.2 to 3.9 in) long and 4 to 7 cm (1.6 to 2.8 in) in diameter, with white or very light green scars. [2] The egg-shaped fruits are up to 2 cm (0.79 in) long with falling thorns, and when ripe, they are almost dry and split vertically. [2]
There are two recognized subspecies: [3]
| Image | Scientific name | Distribution |
|---|---|---|
 | Echinocereus adustus subsp. adustus | Mexico (Chihuahua) |
| Echinocereus adustus subsp. keizeraeW.Blum & Dosedal | Mexico (Chihuahua) | |
 | Echinocereus adustus subsp. schwarzii(A.B.Lau) N.P.Taylor | Mexico (Durango) |
Echinocereus adustus is found growing in sandy loam in grasslands in the Mexican states of Chihuahua and Durango at altitudes between 1,800 to 2,400 m (5,900 to 7,900 ft). [4]
The species was first described by George Engelmann in 1848. [5] The specific epithet "adustus" is Latin for "blackened" or "burnt," referring to the blackish spines of the cactus. [6]
Echinocereus dasyacanthus is a member of the cactus family, Cactaceae. It is one of about 2000 total species belonging to this family. The cactus is commonly known as Texas rainbow cactus because of the subtle rings or bands of contrasting colors along the stem of the plant. Not all Texas rainbow cacti have the "rainbow" coloration on their stems. Another common name is spiny hedgehog cactus.
Echinocereus poselgeri, also known as the dahlia cactus, is a species of Echinocereus. It is native to Coahuila and southern Texas.
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Echinocereus enneacanthus is a species of flowering plant first described by George Engelmann.
Echinocereus longisetus is a species of Echinocereus found in Mexico.
Echinocereus parkeri is a species of cactus native to Mexico.
Echinocereus mapimiensis is a species of cactus native to Mexico.
Echinocereus ferreirianus is a species of cactus native to Mexico.
Echinocereus maritimus is a species of cactus native to Mexico.
Echinocereus rayonesensis is a species of cactus native to Mexico.
Echinocereus primolanatus is a species of cactus native to Mexico.
Echinocereus scopulorum is a species of cactus native to Mexico.
Echinocereus polyacanthus is a species of cactus native to Mexico.
Echinocereus schmollii is a species of cactus native to Mexico.
Echinocereus pamanesii is a species of cactus native to Mexico.
Echinocereus schereri is a species of cactus native to Mexico.
Media related to Echinocereus adustus at Wikimedia Commons
Data related to Echinocereus adustus at Wikispecies