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rosinweed    
松香草

松香草

rosinweed
n 1: North American perennial having a resinous odor and yellow
flowers [synonym: {rosinweed}, {Silphium laciniatum}]
2: any of various western American plants of the genus Grindelia
having resinous leaves and stems formerly used medicinally;
often poisonous to livestock [synonym: {gumweed}, {gum plant},
{tarweed}, {rosinweed}]


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  • Rosinweed Plant Information - Gardening Know How
    A sunflower-like wildflower, rosinweed (Silphium integrifolium) is named for the sticky sap that oozes from cut or broken stems This cheery plant is a member of the Asteraceae family, along with daisies, mums, sunflowers, marigolds, and dandelions Growing rosinweed plants couldn’t be easier Read on to learn about growing rosinweed in gardens
  • How to Grow and Care for Rosinweed - Gardeners Path
    Rosinweed is a North American native In its natural habitat, given the right conditions, it can create large stands of sunny yellow flowers Tribes native to areas within the plants’ range used the sticky resin as a mouth cleanser, just as we might a stick of Wrigley’s
  • Rosinweed (Silphium integrifolium) - Illinois Wildflowers
    Rosinweed tends to produce flowers earlier than the Sunflowers, but sometimes their blooming periods overlap While this plant can form sizable clumps, it doesn't spread as aggressively by means of underground rhizomes as many Sunflower species, nor is it known to be allelopathic
  • Silphium integrifolium - Wikipedia
    Silphium integrifolium is a species of flowering plant in the family Asteraceae Its common names include rosinweed, whole-leaf rosinweed, entire-leaf rosinweed, prairie rosinweed, [1] and silflower [2] It is native to eastern North America, including Ontario in Canada and the eastern and central United States as far west as New Mexico [3][4]
  • Silphium asteriscus - North Carolina Extension Gardener Plant Toolbox
    Rosinweed is a 3 foot tall, herbaceous perennial The leaves are alternate, sometimes opposite, and are covered by fine hairs Lemon-yellow flower heads about the size of silver dollars appear in late summer The name rosinweed comes from the resinous sap which, when dried, was used by Native Americans as a breath-freshening chewing gum
  • Silphium integrifolium - Plant Finder - Missouri Botanical Garden
    Silphium integrifolium, commonly called rosinweed or wholeleaf rosinweed, is a herbaceous perennial native to prairies, glades, railroad right-of-ways, and roadsides in the Midwest and portions of the southern United States It grows shorter (often to 2-3’ tall) than most of the other native silphiums, though it may grow as tall as 6’
  • Silphium integrifolium Rosin Weed | Prairie Moon Nursery
    Rosin Weed attracts a variety of pollinators but it is especially relished by some of our smaller solitary bees The plant gets its common name from the sticky rosin it produces, which was used as a chewing gum by the Native Americans Rosin weed is quick to mature once germinated, reaching flowering size surprisingly fast
  • Entire-Leaf Rosinweed (Silphium integrifolium) Care Guide
    Rosinweed is a native herbaceous perennial in the aster family found in central USA and parts of Canada It grows along roadsides and railroad tracks, in fields, prairies, and pastures The sunflower-like blooms occur in late summer to fall on up to 6-foot tall stems and attracts bees and butterflies
  • Silphium integrifolium (Rosinweed) - Minnesota Wildflowers
    Rosinweed is a tall-grass prairie species whose natural range extends to Wisconsin and Iowa and does not quite reach Minnesota, but it is available in the nursery trade and may be included in prairie seed mixes and in restored plantings
  • Rosinweed - Grow Native!
    Rosinweed - Grow Native! Plant in the perennial border, native garden, wildflower meadow or prairie Grows easily in full sun in average soil Tolerates drought and poor soil, including clay Clusters of rounded yellow flower heads bloom at the top of stout stems July-August





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