Skip to main content

Common sowthistle (Sonchus oleraceus)

Tempuyung or common sowthistle (Sonchus oleraceus) is a species of plant in Asteraceae, an annual shrub with erect stems, 10-125 cm high, hollow, five-angled, branched, dark green and sometimes with a reddish purple tinge, grows in full sun and tolerates mostly soil conditions.

S. oleraceus has leaves oblong, oblong-ovate or lyrate, base sagittate, basal auricles usually with a tooth obliquely pointing downwards, margins very acutely irregular dentate, teeth not pungent, apex acute or rarely rounded and glaucous on the lower surface.

Dlium Common sowthistle (Sonchus oleraceus)


Lowermost radical, more or less narrowed into a petiole, pinnatifidpinnati-partite with irregular, acutely aciculate-dentate lobes and often with a triangular or ovate acute terminal lobe. Peduncle 1-5 cm long.

The flowers are yellow or white, sitting on stalks at the ends of branches in irregular terminal panicles with main axes and lateral branches further forked and each axis ending in a flower or bud and having or not having hair.

Involucre 8-9 mm long. Phyllaries obtuse, glabrous or with very few gland-hairs. Corolla 1 cm long, light-yellow or white and sometimes tinged with purple. Fruitachene, 2.5-4 mm by 1 mm, brown, 3-ribbed on each face, wrinkled with narrow margins and compressed and obovoid in shape. Seedslight with white parachutes of silky hairs. Pappus 5-8 mm long.

Common sowthistle grows in most soil types, fields, meadows, roadsides, parks and yards, vacant lots, construction sites and trash cans in subtropical and tropical climates with altitudes of 500-1600 meters.





Tempuyung is used as a vegetable that is cooked or eaten raw as a salad, treating various kinds of infections, diseases and other medicinal uses. Sedatives, diuretics, salmonella infections, anemia, eye problems, liver infections and as a remedy for opium addiction.

Plants contain 30-40 mg of vitamin C per 100g, 1.2% protein, 0.3% fat, 2.4% carbohydrates. The leaf dry weight analysis per 100g contains 45g carbohydrates, 28g protein, 22g ash, 5.9g fiber, 4.5g fat and overall provides 265 calories.

Kingdom: Plantae
Phylum: Tracheophyta
Subphylum: Angiospermae
Class: Magnoliopsida
Order: Asterales
Family: Asteraceae
Subfamily: Cichorioideae
Tribe: Cichorieae
Subtribe: Hyoseridinae
Genus: Sonchus
Species: Sonchus oleraceus
Varieties: Sonchus oleraceus var. littoralis, Sonchus oleraceus var. oleraceus

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 ...

Javan mocca or Javan slender caesar (Amanita javanica)

OPINION - Javan mocca or Javan slender caesar ( Amanita javanica ) is a mysterious fungus species and has been enigmatic since it was first reported by Boedijn in 1951 and after that no explanation or reporting of specimens is believed to be the same as expected. Boedijn (1951) described A. javanica which grew on Java island as having the characteristics covered in the Amanita genus. Corner and Bas in 1962 tried to describe Javan mocca and all species in Amanita based on specimens in Singapore. Over time some reports say that they have found A. javanica specimens in other Southeast Asia including also China, Japan, India and Nepal. But there is no definitive knowledge and many doubt whether the specimen is the same as described by Boedijn (1951). I was fortunate to have seen this species one afternoon and soon I took out a camera for some shots. In fact, I've only met this mushroom species once. Javan mocca is an endangered species and I have never seen in my experience in...

Javanese grasshopper (Valanga nigricornis)

Wooden grasshopper or Javanese grasshopper ( Valanga nigricornis ) is an animal species of Acrididae, grasshoppers that have at least 18 subspecies, insects with very wide diversity in color and size, sexual dimorphism in which females are larger in size and paler in color. V. nigricornis in males has a length of 45-55 millimeters and females 15-75 mm. The head is square and green or yellow or brown or black in color. A pair of antennas has a black color. The eyes are large and gray or white or brownish. The hind legs are very large and have a green or yellow or brown or black color, plain or brindle. The limbs have two rows of large and long spines with black tips facing backward. The wings have a length exceeding the belly, a rough surface and are brown or green or yellow or black in color with pulse lines forming spaces filled with black color. The hind wings are rose red which will be visible when flying. Nymphs are pale green or yellow or brown or blackish in color. Javanese gr...