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Polygonum

Polygonum
Family: Polygonaceae
Polygonum image
ASU Fruit & Seed Collection
  • FNA
  • Gleason & Cronquist
  • Resources
Mihai Costea, François J. Tardif, Harold R. Hinds+ in Flora of North America (vol. 5)
Herbs, shrubs, or subshrubs, annual (perennial in P. striatulum), homophyllous or heterophyllous, sometimes heterocarpic; roots fibrous or woody. Stems prostrate to erect, glabrous, smooth or sometimes papillous-scabridulous. Leaves cauline, alternate (opposite in P. humifusum), petiolate or sessile; ocrea with distal part persistent, often hyaline, white or silvery, 2-lobed, chartaceous, glabrous, disintegrating into fibers, or disintegrating completely; petiole base articulated with ocrea or not; blade linear, lanceolate, elliptic, ovate, or subround, margins entire. Inflorescences axillary or axillary and terminal, spikelike, or flowers solitary; peduncle absent. Pedicels present or absent. Flowers bisexual, 1-7(-10) per ocreate fascicle, base not stipelike; perianth nonaccrescent, white or greenish white to pink, campanulate to urceolate, glabrous; tepals 5, connate 3-70% of their length, petaloid or sepaloid, monomorphic or, rarely, dimorphic, the inner usually flat, the outer flat or sometimes keeled and cucullate distally, sometimes of different length than the inner; stamens 3-8 (some may be reduced to staminodes); filaments distinct, free or adnate to perianth tube, glabrous; anthers whitish yellow, pink to purple or orange-pink, elliptic to oblong; styles (2-)3, mostly spreading, distinct or connate proximally; stigmas 2-3, capitate. Achenes included or exserted, yellow-green, brown, or black, unwinged, (2-)3-gonous, glabrous. Seeds: embryo curved. x = 10.
Vascular plants of NE US and adjacent Canada
Fls perfect or unisexual; pedicels jointed at or near the summit; tep (4)5(6), connate below; stamens 3-8; ovary flattened or trigonous, with 2-3 minute, usually capitate stigmas, the styles usually short or obsolete, separate or united; fr a lenticular or trigonous achene, wholly or in large part enclosed by the persistent perianth; embryo at one angle of the achene; annual or perennial herbs (seldom shrubs), commonly with well developed ocreae; fls borne in axillary clusters or terminal (often also axillary) spike-like racemes, or in terminal heads or panicles. Most of the several sections have been taken by some authors as distinct genera. Our spp. mostly flower from early or midsummer into fall. 200, widespread, mainly temp.

Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.

©The New York Botanical Garden. All rights reserved. Used by permission.
Species within checklist: Sage-Grouse Preferred Forbs, NV || << 1 - 50 taxa >>
Polygonum achoreum
Media resource of Polygonum achoreum
Map not
Available
Polygonum acre
Media resource of Polygonum acre
Map not
Available
Polygonum acuminatum
Media resource of Polygonum acuminatum
Map not
Available
Polygonum afromontanum
Media
not available
Map not
Available
Polygonum alaskanum
Media resource of Polygonum alaskanum
Map not
Available
Polygonum alatum
Media resource of Polygonum alatum
Map not
Available
Polygonum alpinum
Media resource of Polygonum alpinum
Map not
Available
Polygonum americanum
Media resource of Polygonum americanum
Map not
Available
Polygonum angustifolium
Media resource of Polygonum angustifolium
Map not
Available
Polygonum arenarium
Media resource of Polygonum arenarium
Map not
Available
Polygonum arenastrum
Media resource of Polygonum arenastrum
Map not
Available
Polygonum arenicola
Media resource of Polygonum arenicola
Map not
Available
Polygonum argyrocoleon
Media resource of Polygonum argyrocoleon
Map not
Available
Polygonum argyrocoleum
Media
not available
Map not
Available
Polygonum articulatum
Media resource of Polygonum articulatum
Map not
Available
Polygonum arussense
Media
not available
Map not
Available
Polygonum auriculatum
Media
not available
Map not
Available
Polygonum austiniae
Media resource of Polygonum austiniae
Map not
Available
Polygonum aviculare
Media resource of Polygonum aviculare
Map not
Available
Polygonum balansae
Media
not available
Map not
Available
Polygonum barbatum
Media resource of Polygonum barbatum
Map not
Available
Polygonum basiramium
Media resource of Polygonum basiramium
Map not
Available
Polygonum bellardii
Media resource of Polygonum bellardii
Map not
Available
Polygonum beyrichianum
Media
not available
Map not
Available
Polygonum bidwelliae
Media resource of Polygonum bidwelliae
Map not
Available
Polygonum bistorta
Media resource of Polygonum bistorta
Map not
Available
Polygonum bolanderi
Media resource of Polygonum bolanderi
Map not
Available
Polygonum brasiliense
Media resource of Polygonum brasiliense
Map not
Available
Polygonum braziliense
Media
not available
Map not
Available
Polygonum brittingeri
Media
not available
Map not
Available
Polygonum bungeanum
Media resource of Polygonum bungeanum
Map not
Available
Polygonum buxifolium
Media resource of Polygonum buxifolium
Map not
Available
Polygonum californicum
Media resource of Polygonum californicum
Map not
Available
Polygonum camporum
Media resource of Polygonum camporum
Map not
Available
Polygonum capitatum
Media resource of Polygonum capitatum
Map not
Available
Polygonum carneum
Media resource of Polygonum carneum
Map not
Available
Polygonum cascadense
Media resource of Polygonum cascadense
Map not
Available
Polygonum caurianum
Media resource of Polygonum caurianum
Map not
Available
Polygonum chinense
Media resource of Polygonum chinense
Map not
Available
Polygonum ciliatum
Media
not available
Map not
Available
Polygonum coarctatum
Media resource of Polygonum coarctatum
Map not
Available
Polygonum cognatum
Media resource of Polygonum cognatum
Map not
Available
Polygonum commixtum
Media
not available
Map not
Available
Polygonum convolvulaceum
Media resource of Polygonum convolvulaceum
Map not
Available
Polygonum coriarium
Media resource of Polygonum coriarium
Map not
Available
Polygonum corrigioloides
Media resource of Polygonum corrigioloides
Map not
Available
Polygonum criopolitanum
Media
not available
Map not
Available
Polygonum cristatum
Media resource of Polygonum cristatum
Map not
Available
Polygonum cymosum
Media resource of Polygonum cymosum
Map not
Available
Polygonum davisiae
Media resource of Polygonum davisiae
Map not
Available
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