Packera glabella - Wikipedia
Packera glabella (formerly Senecio glabellus) 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 but spreads so aggressively, overtaking other native plants, that it is considered [ by whom? ] invasive.
Identifying wildflowers: Packera glabella, Butterweed - Dave's Garden
2016年4月9日 · Packera glabella is a native plant for most of North America east of the Rockies and for the next few weeks these yellow flowers will be everywhere. Even though it is a north American native, this winter annual, or biennial member of the Asteraceae family is a troublesome weed for farmers.
Butterweed (Packera glabella) - Illinois Wildflowers
Comments: Butterweed (Packera glabella) is the weediest Packera spp. in Illinois. It is more tall and coarse in appearance than these other species, which are short-lived perennials. In particular, the hollow central stem of Butterweed stands out as being more stout.
Packera glabella - USDA Plants Database
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Butterweed - Missouri Department of Conservation
Butterweed, Packera glabella, is Missouri's only annual ragwort. It typically grows in colonies along river floodplains, especially along the Missouri and Mississippi rivers and their tributaries.
Butterweed (Packera glabella) | U.S. Fish & Wildlife Service
Packera glabella. Identification Numbers. TSN: 565358. Geography. Launch Interactive Map. Working with others to conserve, protect and enhance fish, wildlife, plants and their habitats for the continuing benefit of the American people. Footer Menu - Employment. Careers & …
Packera glabella page
It is a common weed in moist fallow agricultural land, and can form enormous populations of solid, bright yellow under favorable conditions. An older name is Senecio glabellus.
Yellow Spring 3: Butterweed, Packera glabella. | Loyola University ...
2015年5月6日 · As one of the earliest bloomers, Butterweed, Packera (syn. Senecio) glabella, often seems to be the only wildflower along the roadside. Butterweed seeds germinate in late fall and winter. By late winter, their wet habitat contains roseates of broad, dark green leaves with purple undersurfaces.
Butterweed (Packera glabella) - Garden.org
Base leaves are deeply divided w/ lobes and teeth; leaf size reduces further up thee stem. Flower clusters are terminal w/ numerous flower heads to 1" across. 12 to 20 petal-like ray flowers …
Packera glabella (Butterweed)
Packera glabella, or Butterweed, is native to the southeastern, southern and central-midwestern United States. It is an annual that forms a basal rosette the fall before, and then blooms early in spring, and then dies away after setting seed.