. 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. Genus 5. BUCKWHEAT FAMILY. 661 3. Polygonum leptocarpum Robinson. Narrow- pointed Knotweed. Fig. 1617. Polygonum leptocarpum Robinson, Proc. Bost. Soc. Nat. Hist. 31: 263. 1904. Annual, glabrous, stem very slender, copiously branched, about i° tall, nearly terete, the branches angled. Leaves various, the lower ones early deciduous the upper ones linear-lanceola
. 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. Genus 5. BUCKWHEAT FAMILY. 661 3. Polygonum leptocarpum Robinson. Narrow- pointed Knotweed. Fig. 1617. Polygonum leptocarpum Robinson, Proc. Bost. Soc. Nat. Hist. 31: 263. 1904. Annual, glabrous, stem very slender, copiously branched, about i° tall, nearly terete, the branches angled. Leaves various, the lower ones early deciduous the upper ones linear-lanceolate to linear, 3"-4" long, acute, pale green; ocreae becoming very finely lacerate, brown or reddish- brown at the base; flowers sessile or nearly so; sepals 4 or 5, green and with whitish or reddish margins; stamens 4 or 5, included; style 3-parted; achene slender, 3-angled, lanceolate, less than ii" long, curved at the apex. Kansas. 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
