. 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. 2. Fagopyrum tataricum (L.) Gaertn. Tartary Buckwheat. Fig. 1647. Polygonum tataricum L. Sp. PI. 364. 1753. Fagopyrum tataricum Gaertn. Fr. & Sem. 2: 182. pi, 180. f. 6. 1791. Annual, similar to the preceding species, but the leaves deltoid-hastate or oblong-hastate, often broader than long, i'-4' wide, acute or short- acuminate at the apex; racemes termina
. 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. 2. Fagopyrum tataricum (L.) Gaertn. Tartary Buckwheat. Fig. 1647. Polygonum tataricum L. Sp. PI. 364. 1753. Fagopyrum tataricum Gaertn. Fr. & Sem. 2: 182. pi, 180. f. 6. 1791. Annual, similar to the preceding species, but the leaves deltoid-hastate or oblong-hastate, often broader than long, i'-4' wide, acute or short- acuminate at the apex; racemes terminal and axillary, mostly solitary, simple and few-flowered, long-peduncled; flowers whitish, short-pedicelled; achene subacute, 2I" long, its angles crested with 3 prominent lobes above the middle, its faces pinnately sulcate from a conspicuous groove. In waste places, eastern Canada and New England. Rough buckwheat. Adventive from Asia. 10. TRACAULON Raf. Fl. Tell. 3: 13. 1836. Annual or sometimes perennial prickle-armed herbs, with reclining-climbing 4-angled stems. Leaves alternate, truncate, hastate or cordate, membranous, the petiole, midrib and principal nerves armed with small recurved prickles. Ocreae oblique, finely nerved, vari- ously roughened about the base. Flowers in terminal and axillary spike-like racemes, these usually somewhat interrupted, or in capitate clusters. Sepals somewhat colored, 4-5, neither keeled nor winged, enveloping the achene. Stamens varying from 5 to 8, included; fila- ments not dilated. Styles 2 or 3, partially united, included. Achenes lenticular or 3-angled, variously colored, strongly biconvex or three-angled, smooth and shining. Endosperm horny. Cotyledons accumbent. [Greek, rough-stem.] About 18 species, natives mostly of North America and Asia. Type species: Tracaulon ari- folium Raf. Leaves sagittate; achene 3-angled. Leaves halberd-shaped ; achene lenticular. 1. T. sagittatum. 2. T. Please note that these imag
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913
