It can bolt upward and form flowerheads very quickly during the summer. Leaves and stem: Upper leaves are up to 6 inches long with a rounded, widely lobed (auriculate) base semi-clasping the stem. The blooming period can occur from late spring to early fall, and usually lasts about a month for a colony of plants. Description: Leaves are lanceolate, with wavy margins, covered in spines on both the margins and beneath, and bluish-green in color. An annual that may reach as much as 6 feet in height with bluish-green leaves and stems that emit a milky sap when cut. Both the leaves and stems contain a milky solution. asper), the unevenly large-toothed and even lobe-leaved var. Moderate pest factor. The upper leaves are less lobed but have spiny edges. [7][8][9][10][11], It is found in cultivated soil, pastures, roadsides, edges of yards, vacant lots, construction sites, waste areas and in grasslands. Sonchus asper . The leaves and stems emit a milky sap when cut. Spiny Sow Thistle (Sonchus asper): An annual that has bluish-green leaves and stems that emit a milky sap when cut. Sonchus has the questionable distinction of being considered one of the world’s worst weeds, a pest in more than 55 countries. The leaves are bluish-green, simple, lanceolate, with wavy and sometimes lobed margins, covered in spines on both the margins and beneath. The seeds ripen from July to September. [5][6], Sonchus asper is native to Europe, North Africa, and western Asia. Annuals or biennials, 10–120(–200+) cm. Common sow thistle has hollow stems that exude latex if damaged. It has a short taproot, and deeply lobed leaves. prickly sowthistle. Large basal leaves and smaller, curved upper leaves have soft, very spiny teeth. 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. The base of the leaf surrounds the stem. Abstract. Suitable for: light (sandy), medium (loamy) and heavy (clay) soils. 1: 47. It is in flower from June to August, and the seeds ripen from July to September. 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. Image of flower, yellow, nature - 109036857 The leaves and stems emit a milky sap when cut. Each lower leaf has deep triangular 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. Les Composées de Madagascar. 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. The leaves are bluish-green, simple, lanceolate, with wavy and sometimes lobed margins, covered in spines on both the margins and beneath. PREPARATION OF MEDICINE: Infused or decocted. This plant spreads by reseeding itself. Sonchus oleraceus is an annual herb, upto 4 ft. in height. Cooperative Extension, which staffs local offices in all 100 counties and with the Eastern Band of Cherokee Indians. Sonchus asper leaf and stem The three common ones are Sonchus oleraceus, (SON-kus oh-ler-AY-see-us) Sonchus Asper (SON-kus ASS-pur) and Sonchus arvensis (SON-kus ar-VEN-sis.) The base of each flower is covered with dull green bracts and is it rather short. Gayana, Botany 42: 1–157. In Hawai’i, however, I have never seen it out of control. The plant is not frost tender and flowers from June to August. Sonchus oleraceus has short taproot and deeply lobed leaves. Grows yellow flowers resembling dandelions … Read our Commitment to Diversity | Read our Privacy Statement. Suitable pH: acid, neutral and basic (alkaline) soils. Spiny-leaf sow-thistle, laiteron rude Sonchus oleraceus Linnaeus var. 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. It is an herbaceous annual or winter annual plant that contains white sticky latex with short taproot which is bushy with many lateral roots. 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. perennial sowthistle. Resembles Sonchus asper but has generally softer, less deeply divided leaves, larger cypselas and larger pollen grains. The stems are dull green or reddish green, round, and smooth. Its relationships to the similar S. gigas Boulos from Africa are in … All leaves are coarsely toothed with soft spines and are shiny waxy green on the upper surface. Margins are spiny and wavy, white mid-vein, large round basal lobes clasping - curled downward, often dark green and glossy. Sonchus asper. 2: 794. Identifying Characteristics. They tend to be crowded on the stem. The base of the leaf surrounds the stem. Suitable for: light (sandy), medium (loamy) and heavy (clay) soils. The genus Sonchus includes approximately 60 species, and three of them have become common weeds throughout the world. S. asper and S. oleraceus are applied worldwide in folk medicine as stomachic, aperitive and diuretic. Sonchus asper: basal auricles of leaves rounded and stalks to flower heads with abundant stipitate glands (vs. S. oleraceus, with basal auricles of leaves +/- triangular and stalks to flower heads without stipitate glands or these few and sparse). PLANT PART USED: Leaves, stems, juice, root. Mémoires de la Société Linnéenne de Normandie 25: 1–335. It is not frost tender. Basal and lower stem leaves extremely variable, obovate, spatulate, or elliptic, 7-13 × 2-5 cm, undivided or ± irregularly pinnatisect, glabrous, adaxially dark green and ± glossy, base attenuate and ± auriculate, margin usually densely spinulosely dentate, apex acute, acuminate, or obtuse; lateral lobes ± triangular, semiorbicular, or elliptic. The leaves are consumed raw as a salad or cooked as a spinach. The commoner of the two, the smooth sow-thistle, Sonchus oleraceus has leaves that are weakly and softly spiny, and usually deeply lobed, while those of the rough sow-thistle Sonchus asper are more aggressively spiny, less lobed, or unlobed, and the upper surface is shiny green. The proximate composition, as well as the content of mineral elements (Na, K, Ca, Mg, P, Fe, Cu, Zn and Mn), fatty acids, vitamin C, carotenoids and oxalic acid were determined. Leaves. Also, the leaf margins of spiny sowthistle are much more spiny or prickly than those of annual sowthistle. Full sun (6 or more hours of direct sunlight a day). Annual sowthistle is a summer annual plant which can grow up to 5 feet in height. The upper leaves are more likely to be entire or have shallow lobes. Sonchus asper is an annual herb considered native to Europe, Africa and Asia that has … The root system consists of a stout taproot. It has a short taproot, and deeply lobed leaves. It has also become naturalized on other continents and is regarded as a noxious, invasive weed in many places. The stems are dark green in color (sometimes tinted with a reddish-purple tinge). The leaves are alternate, glabrous, oblong to lanceolate in outline, with lobed and prickly toothed margins. Each flower is about 2/3 inch across when fully open, consisting of numerous yellow ray florets. STATUS IN HAWAI’I: Alien. The foliage contains a milky latex. The leaves are cauline and basal. Sonchus oleraceus L was named by Carolus Linnaeus in 1753 in his "Species Plantarum." Leaves have soft, spiny toothed edges that may be wavy, are hairless, mostly with small rounded lobes at the base that clasp the stem. Tesis, Universidad Mayor San Simón, Cochabamba, Marticorena, C. & M. Quezada. Each floret is replaced by an achene with a tuft of silky white hairs. Reconstrucción y Evolución del Paisaje Vegetal Autóctono de la Zona Urbana y Peri-urbana de la Ciudad de Cochabamba i–v, 1–174. Sonchus asper ← → Synonyms (former Scientific Names): Sonchus nymanii . Leaves are up to 8 inches long and 2¼ inches across, becoming smaller and more sparse up the central stem. Upright, smooth, stems branched sparsely above. 1753. One plant will produce several flat-topped arrays of flower heads, each head containing numerous yellow ray flowers but no disc flowers. The achenes are flat, spindle-shaped, hairless, and have several longitudinal ribs. Sonchus asper. It is in flower from June to August, and the seeds ripen from July to September. Sonchus oleraceus has hollow stems that exude latex (whitish milk) if damaged. In both species the leaves clasp the stem by their ‘auricles’. Apart from the species’ prevailing entire-leaved name variety (var. They are also a good animal feed. It blooms from late spring through early fall and reproduces by means of seeds. Distinguishing Features. Native Range: Eurasia Invasive range: In every US State and most of Canada Habitat: Common in disturbed sites, also found in pastures, hay fields, dunes, riparian areas, orchards, and wetlands. Its edible leaves make a palatable and nutritious leaf vegetable. NC State University and N.C. A&T State University work in tandem, along with federal, state and local governments, to Sonchus asper, or Prickly Sowthistle, is a spring or summer annual herbaceous wildflower, with spiney leaves and yellow flowers and is often considered a weed because of its aggressive spread. 2. The basal leaves form a rosette that may not be present at flowering. Spiny sowthistle is primarily a weed of landscapes, winter small grains, pastures, hay fields, orchards, and roadsides. 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 (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. One plant will produce several flat-topped arrays of flower heads, each head containing numerous yellow ray flowers but no disc flowers. They are respectfully the common sow thistle, the spiny sow thistle and the field sow thistle. Sonchus oleraceus is a BIENNIAL growing to 1 m (3ft 3in). They are distributed by the wind. Females lay eggs on the undersides of leaves, forming up to 270 galls/plant [16]. with spiny leaves and yellow flowers resembling those of the dandelion. Brit. The upper stems terminate in clusters of 1 to 5 composite flowers on rather short stalks. pungens can be found especially in urban areas. The species is hermaphrodite (has both male and female organs) and is pollinated by Bees, hoverflies. The stems have rather conspicuous longitudinal veins and are usually hairless, although occasionally the upper stems and flowering stalks have a few hairs. The species is hermaphrodite (has both male and female organs) and is pollinated by Bees, flies. Sonchus asper is an annual or biennial herb sometimes reaching a height of 200 cm. Sonchus asper (Linnaeus) Hill, Herb. Lower leaves are up to 10 inches long and 3½ inches wide, more spatula shaped with deeper lobes. Leaves are up to 10 inches long and 3½ inches across, but more commonly they are about half this size or less. Suitable pH: acid, neutral and basic (alkaline) soils. It has a short taproot, and deeply lobed leaves. asper L, S oleraceus L and S tenerrimus L) from different locations in the south east of Spain were carried out. Sonchus species have a long record of being used as leafy vegetables in many parts of the world. Spiny sowthistle is primarily a weed of pastures, hay fields, landscapes and roadsides. The seeds spread by wind and water and the plant can tend to take over a site. with spiny leaves and yellow flowers resembling those of the dandelion. Sonchus oleraceushas hollow stems that exude latex, if damaged. It is found throughout the United States. Humbert, H. 1923. spiny sowthistle. Spiny sowthistle is a winter annual that is actually in the sunflower family and not a true thistle. Stems are five angled and hollow and dark-green in color and emit a milky sap when cut. Leaves are lanceolate to oblanceolate in shape, hairless and dark green in color with pale white to purple veins. form a strategic partnership called N.C. It is not frost tender. They then alternate on stems. suppressing S. asper and S. arvensis in Canada. Sonchus asper is a major problem in winter crops and in tillage systems throughout southern Australia, South-East Queensland and Northern New South Wales. Sonchus asper, or Prickly Sowthistle, is a spring or summer annual herbaceous wildflower, with spiney leaves and yellow flowers and is often considered a weed because of its aggressive spread. The stem is 1-3 feet in height, hollow, glabrous, with prominent longitudinal ribs. Catálogo de la Flora Vascular de Chile. 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 … Th… Sonchus asper, the prickly sow-thistle,[2] rough milk thistle,[3] spiny sowthistle,[4] sharp-fringed sow thistle, or spiny-leaved sow thistle, is a widespread plant in the dandelion tribe within the daisy family. The stems are hollow and contain hair on only the lower portion. 1985. It is found throughout the United States. On shorter plants, they are rather crowded together on the stems, even where the composite flowers occur. asper Linnaeus, Sp. Sonchus asper (Spiny sowthistle), belonging to the Asteraceae, is a problematic weed in grain crops, orchards as well as turf (Cho et al., 2019). Sonchus arvensis: "Sonchus" is the Greek name for sow thistle and … These are S. arvensis, perennial sow thistle, and the two annual species S. oleraceus, common sow thistle, and S. asper, prickly sow thistle. 1769. The leaves form basal and are deeply lobed. Sonchus asper is a ANNUAL growing to 0.5 m (1ft 8in). 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. Pl. Sonchus asperbelongs to the family Asteraceae commonly known as Peeli dudhi in Hindi and Prickly sow thistle in English. Analyses of the nutritional composition of tender leaves of three species of Sonchus ( S . 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. Photo about Sonchus asper flower plant leaves. N.C. Stem: Stem Color: Green Purple/Lavender Stem Is Aromatic: No Stem Form: Straight Stem Surface: Its edible leaves make a palatable and nutritious leaf vegetable. Spiny Sowthistle in Virginia Tech Weed Identification Guide, WeedAlert.com's article on the Spiny Sowthistle, photo of herbarium specimen at Missouri Botanical Garden, collected in Madagascar in 1932, https://en.wikipedia.org/w/index.php?title=Sonchus_asper&oldid=992247265, Short description is different from Wikidata, Taxonbars with automatically added basionyms, Creative Commons Attribution-ShareAlike License, This page was last edited on 4 December 2020, at 07:30. In a garden setting, be careful not to let this plant go to seed. Depending on the local form of the plant, these leaves may be pinnatifid, or they may lack significant lobes along the margins, in which case they are broadly lanceolate or oblanceolate. Sonchus asper is an annual or biennial herb sometimes reaching a height of 200 cm. [12], Species of flowering plant in the daisy family Asteraceae, De la Barra, N. 1997.