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|Family: Polygonaceae||View Description||Dichotomous Key|
|Genus: Rumex||View Description||Dichotomous Key|
|Species:||View Description||Dichotomous Key|
Rumex dentatus L.
Habit: Annual (biennial), glabrous; taproot vertical, fusiform. Stem: erect, < 7(8) dm, slender, often bending in flower, generally branched above middle, occasionally from base. Leaf: blade 3--8(12) cm, 2--5 cm wide, lance-oblong to ovate-elliptic, base +- cordate to truncate or tapered, margin entire, flat to +- wavy, tip obtuse to +- acute. Inflorescence: terminal, open, interrupted, branches generally straight, ascending; whorls 10--20-flowered; pedicels 2--5 mm, thread-like, joints swollen. Flower: inner perianth lobes 3--5.5(6) mm, 2--3 mm wide except teeth, triangular-ovate or deltate, base truncate, margin generally dentate with teeth 2--4(5), 1--3(5) mm, generally <= width of lobe, generally on both sides, narrowly triangular, tip +- acute; tubercles (1)3, +- equal, lanceolate. Fruit: 2--2.8 mm, 1.4--1.8 mm wide, dark red-brown. Chromosomes: 2n=40.
Ecology: Uncommon. Wet, disturbed places, cultivated fields; Elevation: < 800 m. Bioregional Distribution: GV, PR; Distribution Outside California: Oregon, Alberta, Ontario, Missouri, Texas, Arizona; native to southeastern Europe, Asia, northern Africa. Flowering Time: May--Sep
Synonyms: Rumex dentatus subsp. klotzschianus (Meisn.) Rech. f.
eFlora Treatment Author: Scott Simono
Jepson Online Interchange
Previous taxon: Rumex crispus
Next taxon: Rumex fueginus
Citation for this treatment: Scott Simono 2016. Rumex dentatus, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=42391, accessed on August 30, 2016.
Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on August 30, 2016.