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|Family: Polygonaceae||View Description||Dichotomous Key|
|Genus: Polygonum||View Description||Dichotomous Key|
|Species:||View Description||Dichotomous Key|
Polygonum minimum S. Watson
Habit: Annual. Stem: prostrate to erect, 2--30 cm, wiry, often zigzagged, papillate-scabrous, red-brown, angled, branches from base or 0. Leaf: crowded distally or not; ocreae jointed to leaf, 1--5 mm, papillate-scabrous, proximally cylindric, distally entire to dentate-torn; petiole 0.1--3 mm; blade 6--27 mm, 3--8 mm wide, narrowly elliptic, elliptic, ovate, obovate, or +- round, margins flat, smooth, irregularly thickened or papillate-fine-dentate, tip mucronate. Inflorescence: pedicel included in bractlets, erect to spreading, 2--3 mm; flowers 1--3, near stem base, also crowded distally or not. Flower: 1/2-open or closed; perianth 1.8--2.5 mm, +- green, margin narrow, white or pink, tube 22--29% of length, lobes overlapped, oblong, hood-shaped, +- keeled, tip rounded, midvein thickened, unbranched; stamens 8. Fruit: included or exserted, 1.8--2.3 mm, elliptic to ovate, black, shiny, smooth.
Ecology: Meadows, open rocky or +- barren soil; Elevation: 700--3500 m. Bioregional Distribution: NW, CaR, SN; Distribution Outside California: western North America. Flowering Time: Jul--Sep
Synonyms: Polygonum torreyi S. Watson
eFlora Treatment Author: Mihai Costea
Jepson Online Interchange
Previous taxon: Polygonum marinense
Next taxon: Polygonum paronychia
Citation for this treatment: Mihai Costea 2016. Polygonum minimum, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=39238, accessed on August 25, 2016.
Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on August 25, 2016.