Skip to main content

Yellow oleander (Cascabela thevetia)

Ginje or yellow oleander or be-still tree or thevetia peruviana (Cascabela thevetia) is plant species in Apocynaceae, small tropical shrubs or small trees, poisonous but some bird species are known to eat fruit without adverse effects and are widely cultivated as ornamental plants.

C. thevetia has shiny green leaves, linear-lanceolate and covered with a waxy coating to reduce water loss. The green stems turn silver or gray with age, but the inside remains green and has a thin brown skin.

Dlium Yellow oleander (Cascabela thevetia)

The flowers are long funnel shaped and yellow or white or red. Dark red fruit that encloses a large seed. Yellow oleander is drought resistant, tolerant of high temperatures, dry or barren soil and drought.

All parts of the plant are poisonous to most vertebrates because they contain glycosides. The main poisons are cardenolides called thevetin A and thevetin B, peruvoside, neriifolin, thevetoxin, and ruvoside. Toxins are used in biological pest control. Seed oil is used for antifungal, antibacterial, and anti-termite properties.

Several species of birds are known to eat them without ill effects, including the sunbirds, Asian coels, red-whiskered bulbuls, white-browed bulbuls, red-vented bulbuls, brahminy myna, common myna and common gray hornbills. Extracts from C. thevetia have antispermatogenic activity in mice.

Bright yellow flowers are used for religious purposes, especially in the worship of Hindu Shiva. Ginje is cultivated as an ornamental plant and is planted as a large flowering bush or small ornamental tree in gardens and parks.





Kingdom: Plantae
Phylum: Tracheophyta
Subphylum: Angiospermae
Class: Magnoliopsida
Order: Gentianales
Family: Apocynaceae
Subfamily: Rauvolfioideae
Genus: Cascabela
Species: Cascabela thevetia
Varieties: Cascabela thevetia var. peruviana

Popular Posts

Cogon grass (Imperata cylindrica)

Cogon grass ( Imperata cylindrica ) is a species of plant in the Poaceae, an annual grass, sharp leaves, long and scaly shoots, creeping underground, white or purplish flowers, very adaptive and grows in all climates. I. cylindrica has sharply pointed shoot tips that emerge from the ground, up to 3 meters high, short stems, rising above the ground surface. Leaves are long ribbon-shaped, pointed tip, narrow base, up to 100 cm long, very rough and sharply serrated edges, long hairs at the base and wide veins. Inflorescences in panicles, up to 28 cm long, spikes long-haired and white to 1 cm. The seeds spread quickly with the wind or via rhizomes that quickly penetrate the soil. This species grows in tropical to subtropical areas, elevation up to 2000 meters, temperature 20-40C, rainfall 500-3500 mm/year, pH 4-7.5, lots of sunlight to a bit of shade. This plant dominates open land, former forests, dry rice fields, roadsides and so on. This plant contains mannitol, glucose, sacharose...

Liberian coffee (Coffea liberica)

Liberian coffee ( Coffea liberica ) is a species of plant in the Rubiaceae family, a tree up to 20 meters tall, with numerous, radial and irregular branches, brown bark, and linear fissures. The leaves are oval, thick, up to 35 cm long, up to 20 cm long, shiny green, and have petioles up to 1 cm long. The fruit is round to oval, irregular, and up to 2 cm wide. TAXON Kingdom: Plantae Phylum: Tracheophyta Subphylum: Angiospermae Class: Magnoliopsida Order: Gentianales Family: Rubiaceae Subfamily: Ixoroideae Tribe: Coffeeae Genus: Coffea L. in Sp. Pl.: 172 (1753) Species: Coffea liberica W.Bull in Nursery Cat. (William Bull) 97: 4 (1874) HETEROTYPIC SYNONYMS Coffea abeokutae Cramer in Meded. Dept. Landb. Ned.-Indië 11: 286, 396 (1913) Coffea abeokutae var. camerunensis A.Chev. in Encycl. Biol. 22: t. 44 (1942) Coffea abeokutae var. indeniensis (Siebert) A.Chev. (1942) Coffea abeokutae var. longicarpa Portères in Ann. Agric. Afrique Occ. 1(2): 224 (1937) Coffea abeokutae var. macrocarpa...

A deep-sea isopod Bathyopsurus nybelini adapted to feed submerged Sargassum algae

NEWS - Incredible footage shows a marine species, Bathyopsurus nybelini , feeding on something that sinks from the ocean’s surface. Researchers using the submersible Alvin found the isopod swimming 3.7 miles down using its paddle-like legs to catch an unexpected food source: Sargassum. Researchers from Woods Hole Oceanographic Institution (WHOI), the University of Montana, SUNY Geneseo, Willamette University and the University of Rhode Island found the algae sinking, while the isopod waited and adapted specifically to find and feed on the sinking nutrient source. The Sargassum lives on the surface for photosynthesis. The discovery of a deep-sea animal that relies on food that sinks from the waters miles above underscores the close relationship between the surface and the deep. “It’s fascinating to see this beautiful animal actively interacting with sargassum, so deep in the ocean. This isopod is extremely rare; only a handful of specimens were collected during the groundbreaking Swedis...