Polygonum meisnerianum var. beyrichianum (Cham. & Schltdl.) Meisn.

  • Authority

    Park, Chong-Wook. 1988. Taxonomy of Polygonum Section Echinocaulon (Polygonaceae). Mem. New York Bot. Gard. 47: 1-88.

  • Family

    Polygonaceae

  • Scientific Name

    Polygonum meisnerianum var. beyrichianum (Cham. & Schltdl.) Meisn.

  • Description

    Species Description - Stem sparsely to moderately armed with relatively short recurved prickles along the angles; prickles 1-1.5 mm long. Leaves subsessile, rarely short-petioled; leaf blades linear lanceolate to oblanceolate, 5.5-14 cm long, 0.8-1.5 cm wide, usually cordate, more or less clasping, rarely somewhat hastate, almost glabrous on both surfaces but rarely bearing some appressed simple multiseriate hairs on upper surface and major veins beneath, rarely densely glandular-pubescent. Ocreae oblique at the tip, short-ciliate, usually almost glabrous but sometimes bearing some bristlelike hairs along the veins, rarely densely glandular-pubescent; pedicels usually glandular-pubescent.

  • Discussion

    Polygonum beyrichianum Cham. & Schldl., Linnaea 3: 42. 1828. Tracaulon beyrichianum (Cham. & Schldl.) Small, FI. S.E. U.S. 380. 1903. Type. Brazil. “In paludibus prope Nov. Friburgum provinciae Rio de Janeiro Brasiliae tropicae,” Dec 1822, Beyrich s.n. (not seen; see Park, Brittonia 38: 399. 1986). Polygonum multangulare Hook. & Am., Companion Bot. Mag. 2: 62. 1836. Type. U.S.A. Louisiana: New Orleans, in 1832, Drummond 277 (lectotype, K!, designated by Park, Brittonia 38: 399. 1986; isolec-totype, K!). Polygonum geniculatum Riddell ex Meisner in Martius, FI. bras. 5(1): 20. 1855, pro syn. Polygonum chamissonianum Steudel ex Meisner in Martius, ibid., pro syn. Polygonum turkheimii Vatke ex Small, Bull. Torrey Bot. Club 19: 370. 1892, pro syn. Polygonum meisnerianum var. jalapense Robinson, Proc. Amer. Acad. Arts 35: 324. 1900. Type. Mexico. Veracruz: In wet places nr. Jalapa, 1225 m, 5 Apr 1899, Pringle 8111 (lectotype, CU!, designated by Park, Brittonia 38: 399. 1986; isolectotypes, K!, MIN!, MO!, MSC!, NY!, P!, TEX!, US!); see Mitchell, Rhodora 72: 182-188. 1970.

  • Distribution

    Distribution. In southeastern South America, central America, Cuba, and the southeastern United States (Florida, Louisiana, and South Carolina); also occurs in southeastern Africa (Figs. 11, 32, and 33). SOUTH AFRICA. Transvaal: Belfast, 6 Feb 1904, Davy 1319 (K); without specific locality, 1875-1880, Rehmann s.n. (K); Dist. Lydenburg, Jan 1896, Wilms. 1283 (K).

    South America| Central America| Cuba South America| United States of America North America| South Africa Africa| Tanzania Africa|