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Potentilla recta, the sulphur cinquefoil [1] or rough-fruited cinquefoil, is a species of cinquefoil. It is native to Eurasia but it is present in North America as an introduced species, ranging through almost the entire continent except the northernmost part of Canada and Alaska. The plant probably originated in the Mediterranean Basin.
Potentilla / ˌ p oʊ t ən ˈ t ɪ l ə / [1] is a genus containing over 500 species of annual, biennial and perennial herbaceous flowering plants in the rose family, Rosaceae.. Potentillas may also be called cinquefoils in English, but they have also been called five fingers and silverweeds.
A thiosulfoxide or thiothionyl compound is a chemical compound containing a sulfur to sulfur double bond, with the formula (R−)(R'−)S=S, where R and R' represent any group (typically fluorine, chlorine, alkoxy, alkyl, aryl or other organyl residues. The thiosulfoxide has a molecular shape known as trigonal pyramidal. Its coordination is ...
Multifoil arch in the Aljafería, Zaragoza, Spain. A multifoil arch (or polyfoil arch), also known as a cusped arch, [1] [2] polylobed arch, [3] [4] or scalloped arch, [5] is an arch characterized by multiple circular arcs or leaf shapes (called foils, lobes, or cusps) that are cut into its interior profile or intrados.
Lime sulfur reacts with strong acids (including stomach acid) to produce highly toxic hydrogen sulfide (rotten egg gas) and indeed usually has a distinct "rotten egg" odor to it. Lime sulfur is not flammable but can release highly irritating sulfur dioxide gas when in a fire. Safety goggles and impervious gloves must be worn while handling lime ...
Potentilla robbinsiana, the dwarf mountain cinquefoil [1] or Robbins' cinquefoil, is a small yellow-flowered perennial growing exclusively above the tree line in the White Mountains of New Hampshire. It is nearly stemless and measures two to four centimeters in diameter.
Potentilla simplex, also known as common cinquefoil or old-field five-fingers or oldfield cinquefoil, is a perennial herb in the Rosaceae (rose) family native to eastern North America from Ontario, Quebec, and Labrador south to Texas, Alabama, and panhandle Florida.
Potentilla reptans, known as the creeping cinquefoil, [1] European cinquefoil or creeping tormentil, is a flowering plant in the family Rosaceae. [2] Description