Alternanthera helleri
Encyclopedia
Alternanthera helleri is a species of plant
Plant
Plants are living organisms belonging to the kingdom Plantae. Precise definitions of the kingdom vary, but as the term is used here, plants include familiar organisms such as trees, flowers, herbs, bushes, grasses, vines, ferns, mosses, and green algae. The group is also called green plants or...

 in the Amaranthaceae
Amaranthaceae
The flowering plant family Amaranthaceae, the Amaranth family, contains about 176 genera and 2,400 species.- Description :Most of these species are herbs or subshrubs; very few are trees or climbers. Some species are succulent....

 family. It is endemic to Ecuador
Ecuador
Ecuador , officially the Republic of Ecuador is a representative democratic republic in South America, bordered by Colombia on the north, Peru on the east and south, and by the Pacific Ocean to the west. It is one of only two countries in South America, along with Chile, that do not have a border...

. It is believed to be green in color anywhere from 90 to 100% of the year depending on altitude. The leaves are considered to be highly toxic to humans and should not be consumed under any circumstances.

Alternanthera helleri is a fall-blooming species, it can be planted at any time of year, but the best time is early/middle fall, as this provides it with an optimum blooming window when it will be in season. It is very rare to find growing in the wild, and recent national park's and forest's efforts to remove hazardous plants such as this one have drastically reduced the numbers in the wild. It is still grown, however, in laboratory settings, where scientists try to analyze just exactly what makes it so toxic to humans. It is theorized that the plant produces a powerful hemotoxin
Hemotoxin
Hemotoxins, haemotoxins or hematotoxins are toxins that destroy red blood cells , disrupt blood clotting, and/or cause organ degeneration and generalized tissue damage. The term hemotoxin is to some degree a misnomer since toxins that damage the blood also damage other tissues...

, perhaps similar to oleander
Oleander
Nerium oleander is an evergreen shrub or small tree in the dogbane family Apocynaceae, toxic in all its parts. It is the only species currently classified in the genus Nerium. It is most commonly known as oleander, from its superficial resemblance to the unrelated olive Olea, but has many other...

in nature.
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