Groundsel

Last updated April 05, 2019

Groundsel is a common name for several plants and may refer to:

Members of the genus Senecio
- Common groundsel, Senecio vulgaris
- Welsh groundsel, Senecio cambrensis
- York radiate groundsel, Senecio eboracensis
- Eastern groundsel, Senecio vernalis
- Heath groundsel, Senecio sylvaticus
- Sticky groundsel, Senecio viscosus
Senecio eboracensis, the York groundsel or York radiate groundsel, is a self-pollinating hybrid species of ragwort and one of only six new plants to be discovered in either the United Kingdom or North America in the last 100 years. It was discovered in 1979 in York, England growing next to a parking lot and formally described in 2003. Like many of the Senecio genus it can be found growing in urban habitats, such as disturbed earth and pavement cracks and this particular species only in York and between a railway and a parking lot.
Senecio vernalis is one of the European species of Senecio, an annual that is also known as eastern groundsel. While it has been long classified as Senecio vernalis, this species has more recently been described as a subspecies of Senecio leucanthemifolius and is now included by some in that species.
Senecio sylvaticus is a species of flowering plant in the aster family. It is variously known as the woodland ragwort, heath groundsel, or mountain common groundsel. It is native to Eurasia, and it can be found in other places, including western and eastern sections of North America, as an introduced species and an occasional roadside weed. It grows best in cool, wet areas. It is an annual herb producing a single erect stem up to 80 centimeters tall from a taproot. It is coated in short, curly hairs. The toothed, deeply lobed leaves are up to 12 centimeters long and borne on petioles. They are evenly distributed along the stem. The inflorescence is a wide, spreading array of many flower heads, each lined with green- or black-tipped phyllaries. The heads contain yellow disc florets and most have very tiny yellow ray florets as well.
Groundsel bush, Baccharis halimifolia
Members of Dendrosenecio , the giant groundsels
Members of Packera , a segregate of Senecio
- Golden groundsel, Packera aurea (Senecio aureus)
- Golden groundsel, Packera obovata (Senecio obovatus)
Packera aurea, commonly known as golden ragwort or simply ragwort, is a perennial flower in the family Asteraceae. It is also known as golden groundsel, squaw weed, life root, golden Senecio, uncum, uncum root, waw weed, false valerian, cough weed, female regulator, cocash weed, ragweed, staggerwort, and St. James wort.
Packera obovata, the roundleaf ragwort or spoon-leaved ragwort, is an erect perennial herb native to Eastern North America. It was previously called Senecio obovatus. Basal and lower leaves are obovate with toothed margins, while upper leaves are pinnately divided. The ray flowers are yellow and the disk flowers orange-yellow, the inflorescences being held well above the foliage.
Members of Roldana , a segregate of Senecio
Members of Tephroseris ^[1]

Senecio is a genus of the daisy family (Asteraceae) that includes ragworts and groundsels. The scientific Latin genus name, Senecio, means "old man."

Senecio vulgaris, often known by the common names groundsel and old-man-in-the-Spring, is a flowering plant in the daisy family Asteraceae. It is an annual herb, native to Europe and widely naturalised as a ruderal species in suitable disturbed habitats worldwide.

Senecio cambrensis is a flowering plant of the family Asteraceae. It is endemic to the United Kingdom and currently known only from North Wales. It is a recently evolved plant that arose suddenly as a result of hybridization between two related species.

Related Research Articles

Senecioneae is the largest tribe of the Asteraceae, or the sunflower family, comprising about 150 genera and 3,000 species. Almost one-third of the species in this tribe are placed in the genus Senecio. Its members exhibit probably the widest possible range of form to be found in the entire plant kingdom, and include annuals, minute creeping alpines, perennial herbs, shrubs, climbers, succulents, trees, and semiaquatic plants.

Packera glabella is one of several plants with the common name butterweed, this one has also been called cressleaf groundsel and yellowtop. It is native to central and southeastern North America.

Senecio viscosus is a herbaceous annual plant of the genus Senecio. It is known as the sticky ragwort, sticky groundsel or stinking groundsel.

Ragwort may refer to a number of plant species:

Senecio congestus, also known by its common names swamp ragwort, northern swamp groundsel, marsh fleabane, marsh fleawort, clustered marsh ragwort and mastodon flower, a herbaceous member of the family Asteraceae and the genus Senecio, can be seen most easily when its bright yellow umbel flowers appear from May to early July standing 3 to 4 feet along marshes, stream banks and slough areas where it likes to grow.

Packera plattensis, commonly known as prairie ragwort or prairie groundsel, is a species of the genus Packera and family Asteraceae. It used to be placed in the genus Senecio.

Senecio triangularis, known as arrowleaf ragwort, arrowleaf groundsel and arrowleaf butterweed, is a species of the genus Senecio and family Asteraceae.

Senecio pinnatifolius is a species of herb native to Australia. Common names include coast groundsel, dune groundsel and variable groundsel.

Packera subnuda is a species of flowering plant in the aster family known by the common names Buek's groundsel and cleftleaf groundsel. It is native to western North America from the Northwest Territories to northern California to Wyoming, where it grows in high mountain meadows in subalpine and alpine climates.

<i>Packera eurycephala</i> species of plant

Packera eurycephala is a species of flowering plant in the aster family known by the common name widehead groundsel. It is native to a section of the western United States encompassing southern Oregon, northern California, and northern Nevada. It can be found in dry habitat types, often in disturbed areas, and it favors serpentine soils.

Packera ganderi is a rare species of flowering plant in the aster family known by the common name Gander's ragwort. It is endemic to southern California, where it is known from a few occurrences in San Diego and Riverside Counties.

Packera multilobata is a species of flowering plant in the aster family known by the common name lobeleaf groundsel. It is native to the western United States from California to Wyoming to New Mexico, where it is common and can be found in many habitat types.

Packera franciscana is a rare species of flowering plant in the aster family known by the common name San Francisco Peaks groundsel, or San Francisco Peaks ragwort. It is endemic to Arizona in the United States, where it is known only from the San Francisco Peaks in Coconino County. It is threatened by recreational activities in its habitat. It is a federally listed threatened species of the United States.

Packera musiniensis is a rare species of flowering plant in the aster family known by the common names Musinea ragwort and Musinea groundsel. It is endemic to Utah in the United States, where it is known only from Sanpete County in the Manti-La Sal National Forest.

Alpine groundsel may refer to:

References

↑ Tephroseris. USDA PLANTS.

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[teph-1] Tephroseris. USDA PLANTS.