. An illustrated flora of the northern United States, Canada and the British possessions, from Newfoundland to the parallel of the southern boundary of Virginia, and from the Atlantic Ocean westward to the 102d meridian. Botany; Botany. 4. Centaurea Scabiosa L. Greater Centaury. C. Scabiosa L. Sp. PI. 913. 1753. Scabious Knapweed. Fig. 4659. Slightly pubescent or villous, perennial; stem simple or branched, about 2° high. Leaves all pinnatifid, the lower and basal ones petioled, often 6' long, the upper sessile and much smaller; heads about 2' broad, on bracted peduncles I'-4' long; involucre
. An illustrated flora of the northern United States, Canada and the British possessions, from Newfoundland to the parallel of the southern boundary of Virginia, and from the Atlantic Ocean westward to the 102d meridian. Botany; Botany. 4. Centaurea Scabiosa L. Greater Centaury. C. Scabiosa L. Sp. PI. 913. 1753. Scabious Knapweed. Fig. 4659. Slightly pubescent or villous, perennial; stem simple or branched, about 2° high. Leaves all pinnatifid, the lower and basal ones petioled, often 6' long, the upper sessile and much smaller; heads about 2' broad, on bracted peduncles I'-4' long; involucre ovoid, its bracts all pectinate to or below the middle, and blackish-mar- gined, the outer ovate, the inner oblong; corolla purple, the outer ones enlarged and neutral; pappus of stiff bristles, about as long as the achene. Waste grounds and fields, Quebec and Ontario to Ohio. Naturalized from Europe. July-Sept. 5. Centaurea vochinensis Bernh. Tyrol Knap- weed. Fig. 4660. C. vochinensis Bernh.; Reichenb. Icon. Fl. Germ. 15: 15. 1853. Perennial, roughish, branched, 2° high or less. Leaves firm in texture, the basal and lower ones dentate or lyrate, 3'-s' long, the upper lanceolate to oblong-lanceo- late, few-toothed or entire; heads about l¥ broad; in- volucre ovoid-cylindric, about 8" high, its faintly nerved bracts pectinate at the brownish tip, the lower short, ovate, the upper elongated; flowers rose-purple, the margined ones radiant. Waste grounds, Ontario to Massachusetts and southern New York. Naturalized from Europe. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Britton, Nathaniel Lord, 1859-1934; Brown, Addison, 1830-1913. New York, Scribner
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
