Skip to main content

Rougeplant (Rivina humilis)

Teter abang or pigeonberry or rougeplant (Rivina humilis) is a species of shrub plant in Petiveriaceae, living in colonies on black soil under the shade of large trees, 0.4-2 m high, green perennial leaves for up to 15 cm long and 9 cm wide, leaf stalks have a length of 1-11 cm.

R. humilis has flowers in clumps with a length of 4-15 cm on the main stalk with a length of 1-5 cm (0.39-1.97 in) and strands with a length of 2-8 mm. Sepal is 1.5-3.5 mm long, white or green and will turn pink or purplish.

Dlium Rougeplant (Rivina humilis)

The berries are green and end up becoming shiny red when ripe, round in size from 2.5 to 5 mm and emit a red liquid if broken. More than 20 pieces appear in each panicle and are very noticeably filling the ground.

Rougeplant grows in forests, stretched land, curbs or becomes ornamental plants at a maximum height of 1,700 m above sea level. This species does not need much sunlight and stands under the shade of large trees including in golden bamboo (Bambusa vulgaris vittata) clump and is tolerant of salt soil.

Some reports say leaves, stems and roots have antibacterial, antioxidant, anticancer and antipesticide properties. The fruits used as pigment-containing coloring agents are rivianin or rivinianin, 5-O-β-D-Glucopyranoside, 3-sulfate, CAS number 58115-21-2, C24H26N2O16S and betaxanthin humilixanthin.





Kingdom: Plantae
Phylum: Tracheophyta
Subphylum: Angiospermae
Class: Magnoliopsida
Order: Caryophyllales
Family: Petiveriaceae
Genus: Rivina
Species: Rivina humilis

Popular Posts

Humpback whales (Megaptera novaeangliae) manufacture bubble-nets as tools to increase prey intake

NEWS - Humpback whales ( Megaptera novaeangliae ) create bubble net tools while foraging, consisting of internal tangential rings, and actively control the number of rings, their size, depth and horizontal spacing between the surrounding bubbles. These structural elements of the net increase prey intake sevenfold. Researchers have known that humpback whales create “bubble nets” for hunting, but the new report shows that the animals also manipulate them in a variety of ways to maximize catches. The behavior places humpbacks among the rare animals that make and use their own tools. “Many animals use tools to help them find food, but very few actually make or modify these tools themselves,” said Lars Bejder, director of the Marine Mammal Research Program (MMRP), University of Hawaii at Manoa. “Humpback whales in southeast Alaska create elaborate bubble nets to catch krill. They skillfully blow bubbles in patterns that form a web with internal rings. They actively control details such ...

Takenoshin Nakai swallow-wort (Vincetoxicum nakaianum) replaces V. magnificum and C. magnificum

NEWS - Researchers reported an erect herbaceous species distributed in the eastern part of Honshu Island, Vincetoxicum magnificum (Nakai) Kitag. based on Cynanchum magnificum Nakai, nomen nudum. Therefore, they named this species Takenoshin Nakai swallow-wort ( Vincetoxicum nakaianum K.Mochizuki & Ohi-Toma). Vincetoxicum Wolf (Asclepiadeae) is the third largest genus in the Asclepiadoideae consisting of about 260 species geographically extending from tropical Africa, Asia and Oceania to temperate regions of Eurasia. A total of 23 species are known from Japan, including 16 endemic species. Molecular phylogeny divides Japanese Vincetoxicum into four groups: the “Far Eastern” clade consisting of 11 endemic species and 4 more widespread species, 1 sister species to the “Far Eastern” clade, the “subtropical” clade consisting of 2 species and the “Vincetoxicum s. str.” clade consisting of 5 species. V. magnificum (Nakai) Kitag. (Japanese: tachi-gashiwa) is closely related to V. macro...

Purhepecha oak (Quercus purhepecha), new species of shrub oak endemic to the state of Michoacán, Mexico

NEWS - In Mexico, several Quercus shrubby species are taxonomically very problematic including 8 taxa with similar characteristics. Now researchers report the purhepecha oak ( Quercus purhepecha De Luna-Bonilla, S. Valencia & Coombes sp. nov.) as a new tomentose shrubby white oak species with a distribution only in the Cuitzeo basin in the Trans-Mexican Volcanic Belt (TMVB). Quercus Linnaeus (1753) subdivided into 2 subgenera and 8 sections of which section Quercus (white oaks) has the widest distribution in the Americas, Asia and Europe. This section is very diverse in Mexico and Central America with phylogenomic evidence indicating recent and accelerated speciation in these regions. The number of shrubby oak species in Mexico is still uncertain. De Luna-Bonilla of the Universidad Nacional Autónoma de México and colleagues found at least 3 taxa in the TMVB, specifically Quercus frutex Trelease (1924), Quercus microphylla Née (1801) and Quercus repanda Bonpland (1809). In 2016,...