Echinopsis cv. haku-jo
Echinopsis is a genus of Cacti in the Cactaceae family. It is native to parts of South America (typically Argentina, Chile, Bolivia, Peru, Brazil, Ecuador, Paraguay and Uruguay). Species vary in form and size – from small globose types to large columnar types. They all produce very large flower blooms, of varying colours, with long floral tubes. Flowers are very short lasting, some are nocturnal. They are fairly easy to grow and are extremely well adapted to drought and able to store water within their structure to ensure survival through dry periods. They are often grown in greenhouses, particularly in regions unsuited to their cultivation outdoors. They can be grown in the ground or in suitable containers which means that they are suitable as houseplants, being tolerant of the often dry atmosphere. ‘Haku-Jo Maru’ is a cultivated hybrid which produces long white scented flowers.
This Japanese cultivar has a very peculiar rib shape. The woolly areoles on the ribs have a felty line between them so it seems like the areoles are connected with each other. It is thought that this interesting cultivar is a chimaeric plant composed of two genetically different strata of cells. This meristematic mutation originated probably from a normal Echinopsis. The flowers like most other Echinopsis hybrid are long trumpet shaped white and scented. This plant can grow quite fast.