asper), the unevenly large-toothed and even lobe-leaved var. Large basal leaves and smaller, curved upper leaves have soft, very spiny teeth. [5][6], Sonchus asper is native to Europe, North Africa, and western Asia. "Sonchus" is the Greek name for sow thistle and … It blooms from late spring through early fall and reproduces by means of seeds. The genus Sonchus includes approximately 60 species, and three of them have become common weeds throughout the world. It has a short taproot, and deeply lobed leaves. Leaves are lanceolate to oblanceolate in shape, hairless and dark green in color with pale white to purple veins. The stems have rather conspicuous longitudinal veins and are usually hairless, although occasionally the upper stems and flowering stalks have a few hairs. The base of the leaf surrounds the stem. It is in flower from June to August, and the seeds ripen from July to September. Read our Commitment to Diversity | Read our Privacy Statement. They are distributed by the wind. Sonchus asper is an annual or biennial herb sometimes reaching a height of 200 cm. Sonchus arvensis: Suitable pH: acid, neutral and basic (alkaline) soils. The root system consists of a stout taproot. with spiny leaves and yellow flowers resembling those of the dandelion. The upper stems terminate in clusters of 1 to 5 composite flowers on rather short stalks. Both the leaves and stems contain a milky solution. It is in flower from June to August, and the seeds ripen from July to September. prickly sowthistle. Apart from the species’ prevailing entire-leaved name variety (var. In a garden setting, be careful not to let this plant go to seed. One plant will produce several flat-topped arrays of flower heads, each head containing numerous yellow ray flowers but no disc flowers. Sonchus asperbelongs to the family Asteraceae commonly known as Peeli dudhi in Hindi and Prickly sow thistle in English. These are S. arvensis, perennial sow thistle, and the two annual species S. oleraceus, common sow thistle, and S. asper, prickly sow thistle. Abstract. Gayana, Botany 42: 1–157. asper Linnaeus, Sp. Photo about Sonchus asper flower plant leaves. The seeds ripen from July to September. The upper leaves are more likely to be entire or have shallow lobes. This plant can be weedy or invasive according to the authoritative sources noted below.This plant may be known by one or more common names in different places, and some are listed above. Spiny Sowthistle (Sonchus asper) is very similar in appearance, however this species has rounded lobes that clasp the stem whereas annual sowthistle has distinctly pointed lobes. They tend to be crowded on the stem. It has a short taproot, and deeply lobed leaves. Leaves are up to 10 inches long and 3½ inches across, but more commonly they are about half this size or less. One plant will produce several flat-topped arrays of flower heads, each head containing numerous yellow ray flowers but no disc flowers. The blooming period can occur from late spring to early fall, and usually lasts about a month for a colony of plants. 2. The species is hermaphrodite (has both male and female organs) and is pollinated by Bees, hoverflies. Sonchus asper is an annual herb considered native to Europe, Africa and Asia that has … The foliage contains a milky latex. Prickly Sowthistle (Sonchus asper) Description: This plant is a spring or summer annual (usually the former) that becomes 1-3' tall, branching sparingly in the upper half. Sonchus oleraceus is an annual herb, upto 4 ft. in height. They are also a good animal feed. Lower leaves are up to 2 inches wide and to 12 inches long and are somewhat variable in shape, having shallow or deep rounded lobes, occasionally unlobed. NC State University and N.C. A&T State University work in tandem, along with federal, state and local governments, to It is often found in lawns, waste places, and roadsides.The size of this plant varies depending on the moisture and fertility of the soil. Cooperative Extension prohibits discrimination and harassment on the basis of race, color, national origin, age, sex (including pregnancy), disability, religion, sexual orientation, gender identity, and veteran status. It is found throughout the United States. S. asper and S. oleraceus are applied worldwide in folk medicine as stomachic, aperitive and diuretic. Catálogo de la Flora Vascular de Chile. Sonchus has the questionable distinction of being considered one of the world’s worst weeds, a pest in more than 55 countries. In April 2016, about 90% of the S. asper plants infesting a pear orchard had symptomatic with black spots densely distributed on the leaves and stems in D … The leaves are bluish-green, simple, lanceolate, with wavy and sometimes lobed margins, covered in spines on both the margins and beneath. The species is hermaphrodite (has both male and female organs) and is pollinated by Bees, flies. Sonchus oleraceus has hollow stems that exude latex (whitish milk) if damaged. Image of flower, yellow, nature - 109036857 suppressing S. asper and S. arvensis in Canada. 1769. The leaves form basal and are deeply lobed. Analyses of the nutritional composition of tender leaves of three species of Sonchus ( S . It can be distinguished from Sonchus asper and Sonchus hydrophilus in that they both have stiff and leathery leaves, mostly smooth achenes (fruit) with ribs that are rough to the touch or with hairs. Sonchus oleraceus: basal auricles of leaves +/- triangular and stalks to flower heads without stipitate glands or these few and sparse (vs. S. asper, with basal auricles of leaves rounded and stalks to flower heads with abundant stipitate glands). Prickly Sowthistle typically grows in full sun, moist to slightly dry conditions, and different kinds of soil, including loam, clay-loam, and shallow gravelly soil. The base of the leaf surrounds the stem. The leaves and stems emit a milky sap when cut. The stems are hollow and contain hair on only the lower portion. asper L, S oleraceus L and S tenerrimus L) from different locations in the south east of Spain were carried out. It is an herbaceous annual or winter annual plant that contains white sticky latex with short taproot which is bushy with many lateral roots. It can bolt upward and form flowerheads very quickly during the summer. 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