. 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 102nd meridian. ast, southern New Yorkand New Jersey to Virginia. Also from British Co-lumbia to California. Adventive or naturalizedfrom Europe. Called also caltrops, maize- or mouse-thorn. Knop-wecd. June-Oct. 9. Centaurea melitensis L. Rayless WingedCentaury. Fig. 4664. Centaurea melitensis L. Sp. PL 917. 1753. Annual, i°-4° high, grayish-pubescent, much branched,the stem and branches nar
. 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 102nd meridian. ast, southern New Yorkand New Jersey to Virginia. Also from British Co-lumbia to California. Adventive or naturalizedfrom Europe. Called also caltrops, maize- or mouse-thorn. Knop-wecd. June-Oct. 9. Centaurea melitensis L. Rayless WingedCentaury. Fig. 4664. Centaurea melitensis L. Sp. PL 917. 1753. Annual, i°-4° high, grayish-pubescent, much branched,the stem and branches narrowly winged by the dccur-rent leaf-bases. Basal leaves lyrate, their lobes obtuse;stem leaves few-lobed or entire, the upper ones i longor less; heads sessile or nearly so; involucre about Ithick, its principal bracts tipped by a slender purplishdivergent spine 5 long or less, which is often branchedbelow and with smaller spines at its base; flowers yel-low, none of them radiant; pappus scales unequal. Waste and cultivated grounds, Georgia to Missouri, Ari-zona, California and Oregon, and in ballast about theAtlantic seaports. Naturalized or adventive from naturalized in South America.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
