Echinocereus dasyacanthus
Echinocereus dasyacanthus
Echinocereus dasyacanthus is a flowering plant in the genus Echinocereus from the cactus family ( Cactaceae ). The specific epithet dasyacanthus derives from the Greek words " δασύς " ( dasys ) for tightly ',' rough ',' unkempt ' and' άκανθα " ( akantha ) for, thorn ' from. English common names are Golden Rainbow " Hedgehog Cactus ", " Texas Rainbow Cactus ", " Texas Rainbow Hedgehog" and "Yellow- Flowered Pitaya ".
Description
Echinocereus dasyacanthus grows mostly single with a majority of cylindrical stems that are tapered towards its tip. The shoots are up to 35 centimeters long and have a diameter of 13 centimeters. There are twelve to 21 ribs available, which are divided into low hump. The often yellow to slightly pink to dark brown spines are indistinguishable in central and radial spines. Two to five or more straddling central spines are protruding or and have a length of 0.2 to 2.5 centimeter. The twelve to 25 spreading radial spines interlock with those of adjacent areoles and are 0.5 to 1.5 inches long.
The flowers are usually yellow, sometimes whitish, orange, pink or purple. They often appear on the sides of the shoots and reach diameter of 5 to 15 centimeters. The green to purple, usually spherical fruits are fleshy and filled with sloping thorns.
Distribution, systematics and hazard
Echinocereus dasyacanthus is distributed in the United States in the states of Arizona, New Mexico and Texas, as well as in the neighboring Mexican states of Sonora, Chihuahua and Coahuila.
The first description by George Engelmann was published in 1848. Nomenclatural synonyms are Cereus dasyacanthus ( Engelm. ) Engelm. (1849 ) and Echinocereus pectinatus var dasyacanthus ( Engelm. ) NPTaylor (1984).
In the Red List of Threatened Species IUCN, the type is known as " Least Concern ( LC) ," ie, than not led at risk.