Treatment Author(s) Mihai Costea. Bibliography. In their wild forms, the lost crops of eastern North America have small seeds with thick, indigestible fruit or seed coats. Sp. Charles Scribner's Sons, New York. Brown. 166-179 ISSN: 1055-3177 Subject: Polygonum, etc ; biological nomenclature; crops; dimorphism; domestication; pericarp; plant … Symbol POER2 Common Name erect knotweed Botanical Family Polygonaceae Plants light green or yellowish, heterophyllous. The lost crops of eastern North America have small seeds with thick, indigestible fruit or seed coats in their wild forms. Treatment appears in FNA Volume 5. Seeds are shorter than the perianth, dull yellow-green to yellow-brown, minutely bumpy on the surface, 3-sided, egg-shaped to nearly triangular, tapering to a blunt tip. An Extinct Domesticated Subspecies of Erect Knotweed in Eastern North America: Polygonum erectum subsp. It flowers and fruits throughout the summer and into the fall until a killing frost. Silver-sheathed knotweed is most common in southern California. Polygonum erectum L. POLYGONACEAE Initial Editorial Analysis 12 Aug 2005 Source of Report for California: Munz, P.A. Polygonum crassicaule Raf. A synchronized flowering period late in the growing season results in simultaneous ripening of a quantity of small-sized starchy seeds during October. Stems erect to ascending, sparingly branched in distal 1/2, not wiry, 15–75 cm. Aufrechter Knöterich (Polygonum erectum L.): Er kommt in Kanada und in den Vereinigten Staaten vor. 1991. An illustrated guide to the flowering plants of the middle Atlantic and New England states (excepting the grasses and sedges) the descriptive text written in familiar language (1910) (14782884275).jpg 1,468 … of 2898 seeds/plant … Polygonum hickmanii H.R.Hinds & Rand.Morgan: Sie kommt in Kalifornien vor. New flora of Vermont Memoirs of the New York Botanical Garden 110: 1-614. Mihai Costea, François J. Tardif, Harold R. Hinds † Common names: Erect knotweed renouée dressée. Silver-sheathed knotweed, Polygonum argyrocoleon, is similar to common knotweed, but has a more erect growth habit reaching 12 to 20 inches in height. Archaeobotanical analyses can reveal the processes that led to the evolution of crop biodiversity throughout the Holocene, an issue of critical importance in an era of climate change and agrobiodiversity loss. watsoniae (Polygonaceae) Author: Mueller, Natalie G. Source: Novon 2017 v.25 no.2 pp. Stems erect to ascending, sparingly branched in distal 1/2, not wiry, 15–75 cm. Pl. Accessed February 2018. (Smartweed) (P. pensylvanicum, P. persicaria, P. erectum, P. coccineum and P. scabrum)**OUTLINE** 1) SEED. Polygonum erectum, Erect Knotweed. 1913. Polygonum erectum L. Family: Polygonaceae . Common knotweed can be confused with spotted spurge in gardens … NameThatPlant.net currently features 3812 plants and 23,740 images. Erect knotweed (Polygonum erectum L.) Erect knotweed was cultivated in ancient Iowa and may have been domesticated. Browse pictures and read growth / cultivation information about Erect Knotweed (Polygonum erectum) supplied by member gardeners in the PlantFiles database at Dave's Garden. The lost crops of eastern North America have small seeds with thick, indigestible fruit or seed coats in their wild forms. Notes: Leathery Knotweed is a common native with a weedy disposition, typically found in disturbed soils such as roadsides, pavement cracks, weedy shorelines and the margins of agricultural fields. (2015). Polygonum plebeium R. François J. Tardif. By c. 900 BP, culti-vation had produced a domesticated subspecies with greatly reduced germination heteromorphism. Pl., 1: 363. 3 vols. 1 "Polygonum erectum Linnaeus in Flora of North America @ efloras.org" eFlora. 1.1) Seed production. In addition, users can learn about the location of vouchered specimens and see images to get a better visual for each plant. Emmet J. Judziewicz . Polygonum erectum Linnaeus [family POLYGONACEAE], Sp. Vol. Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA., 2005. Manual of vascular plants of northeastern United States and adjacent Canada. 1: 363. 1753. Polygonum aviculare, Common Knotgrass, Europe, annual, 5 to 50cm, flower VI to X, plant community: ruderal, medicinal & culinary herb, weight of 1 000 seeds = 1 on erect knotweed (Polygonum erectum L.), an annual seed crop that was cultivated by ancient farmers in Eastern North America (ENA) from c. 3000–600 BP. Mentioned on page 549, 551. Polygonum erectum : Source: Polygonaceae of North America Update, database (version 2011) Acquired: 2011 : Notes: Updated for ITIS by the Flora of North America Expertise Network, in connection with an update for USDA PLANTS (2007-2010) Reference for: Polygonum erectum : Source: The PLANTS Database, database (version 4.0.4) Acquired: 1996 : Notes: Bailey, C. & al. tab separated .txt "printable" version of Polygonaceae, flower seed price-list. ). seeds 3; more Subject » Search 6 Search Results ... Search Results. 1. The New York Flora Atlas is a source of information for the distribution of plants within the state, as well as information on plant habitats, associated ecological communities, and taxonomy. Unbeständiger Vogelknöterich (Polygonum aviculare ssp rurivagum (Boreau) Berher). Polygonum idaeum Hayek; Strand-Knöterich (Polygonum oxyspermum C.A.Mey. lxxv + 910 pp." Polygonum erectum. Polygonum erectum L. ssp. Polygonum spp. Linnaeus. Terms of Trade Contact - eMail Other Seed Lists. & Cronquist, Arthur J. Polygonum erectum L. - erect knotweed POER2. Polygonum erectum L. appears in other Kew resources: IPNI - The International Plant Names Index. Elsewhere, I have argued on the basis of population morphometrics that some assemblages of erect knotweed exhibit a unique domestication syndrome as a result of hundreds of generations of selection in agroecosystems (Mueller, 2017a, … This study uses morphometrics and digital image analysis to document domestication syndrome in an annual seed crop, Polygonum erectum L. (erect knotweed), which was cultivated by Native Americans for c. 2,500 years in eastern North America. Erect knotweed (Polygonum erectum) Little barley ( Hordeum pusillum ) By the Middle Woodland Period, or about 2,000 years ago, Indians from the Upper Midwest down to Tennessee were farmers who grew the starchy seed complex (chenopod, maygrass, little barley, and sometimes erect knotweed), pepo squash, bottle gourd, and the oily seeds of sumpweed and sunflower. Seed production by P. persicaria ranged from 880 to 4010 seeds/plant, representing an av. Polygonum aviculare var. For many plants, the website displays maps showing physiographic provinces within the Carolinas and Georgia where the plant has been documented. 1753. Pl. Media in category "Polygonum erectum" The following 10 files are in this category, out of 10 total. B & T World Seeds log in or create an account. WeedyEndemic. KB; Other Data. 1968, as cited in Kartesz & Meacham Initial Editorial Comments: in no way mentioned in Munz (despite Kartesz & Meacham citation), Munz Southern California Flora, The Jepson Manual [Ed. Relatively few farmers today actively maintain crop biodiversity, but for most of the history of agriculture this was the norm. Britton, N.L., and A. Br. Treatment on page 550. Provided by Kentucky Native Plant Society. Polygonum erectum : Source: Polygonaceae of North America Update, database (version 2011) Acquired: 2011 : Notes: Updated for ITIS by the Flora of North America Expertise Network, in connection with an update for USDA PLANTS (2007-2010) Reference for: Polygonum erectum : Source: The PLANTS Database, database (version 4.0.4) Acquired: 1996 : Notes: The report of this species in CT by Magee and Ahles (1999) is based on a specimen of Polygonum buxiforme— Ahles 85330 ( MASS! Harold R. Hinds† Information. Scientific classification Kingdom: Plantae (unranked): Angiosperms (unranked): Eudic An illustrated flora of the northern United States, Canada and the British Possessions. On NameThatPlant.net, plants are shown in different seasons (not just in flower), and you can hear Latin names spoken, look up botanical terms, … (2015). Has 2 Synonyms. achoreum (Blake) A. Polygonum erectum Roth Common names Erect knotweed in language. Erect knotweed (Polygonum erectum L.), an annual seed crop, was cultivated in Eastern North America between c. 3000–600 BP. erect knotweed. Web. in collaboration with D. D. Keck. 1: 663. It may be distinguished from common knotweed by its long leafless, rose-colored flower spikes and its shiny seed. Plants light green or yellowish, heterophyllous. VI - XI, Hackfruchtäcker, Getreidefelder Nea Potidea, Chalkidiki (18.08.2017) & Bunge ex Ledeb.) Polygonaceae Including plants for which we do not have seed sources (some unavailable plants do not produce viable seed … Join our friendly community that shares tips and ideas for gardens, along with seeds and plants. First published in Sp. 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