It has a dark brown tap root and branched spreading lateral roots that support a stout, woody, persistent stem base (caudex, see Figure 2). Sulfur Cinquefoil Fact Sheet. Sulfur Sinquefoil (Potentilla recta L.) Identification. Curly dock. In contrast, other Cinquefoil … Image courtesy of Larry Kuhns. There are numerous leaves on the stems, 5-7 leaflets with distinctly toothed edges. Flowers have 5 petals, each 0.2-0.4 in. Click on the pictures or buttons for information on each weed species. ... Stolon of rough cinquefoil. In King County, sulfur cinquefoil is most often found invading rocky or low-nutrient soils. Food. DiTomaso, J.M., G.B. Sulfur cinquefoil is a perennial that spreads by seed and also reproduces vegetatively via new shoots emerging from the edges of its woody root crown. Dyer's woad. Family: Rosaceae (Rose) Introduced from Europe; Perennial forb; Habitat. sulfur cinquefoil and P. hirtaare reported to occur naturally and have been produced Image courtesy of Larry Kuhns. It has a high tannin content and is unpalatable to most wildlife and livestock. Weed Description A perennial with many ascending stems from a crown that may reach 1-2 1/2 ft in height. Most King County offices will be closed on January 1, for New Year's Day. Identification . (0.5-1 cm) long, and 25-30 stamens. See the PNW Weed Management Handbook for specific recommendations. However, because of its invasive nature, it is very undesirable economically and ecologically. Plants can live up to 20 years in this way. Identification and Life Cycle. Program offices are located at 201 S. Jackson St., Suite 600, Seattle, WA 98104. Sulfur cinquefoil is a member of the Rose family. Sulfur cinquefoil is one of the first plants to green up in the spring and can remain green into the fall if adequate moisture is available. It is either a state or local noxious weed in Colorado, Wyoming and other western states. For more information about noxious weed regulations and definitions, see Noxious weed lists and laws. Sulfur Cinquefoil. sulphur cinquefoil Potentilla reptans creeping cinquefoil Potentilla rimicola cliff cinquefoil Potentilla rivalis brook cinquefoil ... NV-Invasive Weed Identification for Nevada (POTEN) Wildlife. References. Discussion on the identification of the invasive sulphur cinquefoil (Potentilla recta) from the native Potentilla gracilis from the CPOP Listserv.Includes photos for reference. Potentilla reptans (sulfur cinquefoil) Index. More Content from Plant Identification Plant Identification. Sulphur cinquefoil (Potentilla recta) is a perennial herb in the rose family (Rosaceae). 1-2 ft. tall, stout, covered with hairs and usually unbranched below flowers; sometimes many arise from crown. Fruit Fruits are small, dark brown achenes with pale veins. long with toothed edges (margins) Flower (0.5-1 cm) long, and 25-30 stamens. To contact staff, see the Noxious Weed Control Program Directory, send an email, or call 206-477-WEED (206-477-9333). It is found in pastures, roadsides, railroads, waste areas, and parks throughout King County. Our program staff can provide the property owner or appropriate public agency with site-specific advice on how best to remove it. There can be one to several stems per plant. Sulfur cinquefoil begins growth in early spring, bolts and buds by May, and flowers from early May to July. Originally from the eastern Mediterranean region, the sulphur cinquefoil was introduced to Canada and the US. Canada thistle. Photo courtesy of Matthew Naedel. Repeated cultivation is also effective over time. Sulphur Cinquefoil is easily identified by its pale yellow flowers and palmate leaves. Basal and stem leaves are palmately compound with five to seven Stems are upright with some branching near the top, and up to 3 feet tall. Plumeless thistle. Please notify us if you see sulfur cinquefoil growing in King County. Sulfur cinquefoil is a simple perennial that spreads by three mechanisms: seeds, above-ground stolons, and underground shoots. Stems are erect and can reach up to 80 cm tall. www.mynatureapps.com. Even without grazing, sulfur cinquefoil out-competes forage grasses over time if unmanaged. Plants are long-lived and highly persistent. Identification: Sulphur cinquefoil is a perennial herb that grows from a woody taproot. Stems are upright with some branching near the top, and up to 3 feet tall. Seeds often have a webbed or net-like pattern on them. It has since spread to most counties in the state including King County. Distinguished by long, stiff hairs on stems and leaves that stick straight out from the surface. Source Most wildlife and livestock will avoid grazing this unpalatable plant due to its high tannin content and it will quickly become dominant in grazed areas. Seed set is usually between mid-July and August and leaves often senesce in August but then green up again in the fall and continue to grow until an extended frost. Sulfur cinquefoil with five leaflets. Alternate; palmate-compound with 5-7 leaflets; rough, hairy, 1-4 in. Sulfur Cinquefoil. The upper portion of the stem is branched and covered in hairs. Pontentilla recta. Weed Control in Natural Areas in the Western United States [PDF file].Weed Research and … Flowers have 5 petals, each 0.2-0.4 in. Source Large Mammals Small Mammals Water Birds Terrestrial Birds; Martin: Minor: Minor: Minor: Quinlan: Low: Low: Cover. Sulfur cinquefoil also invades Central Puget Sound prairies and out-competes native plant species. Sulfur Cinquefoil can be identified by its erect habit, palmate leaves with 3-9 leaflets, spreading hairs along its stems, light green undersides of its leaflets, petals that are longer than the sepals, and terminal clusters of flowers that are more or less flat-headed. 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