|University of California, Berkeley|
|Jepson eFlora: Taxon page
Key to families | Table of families and genera
Index to accepted names and synonyms:
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|Family: Polygonaceae||View Description||Dichotomous Key|
|Genus:||View Description||Dichotomous Key|
|Species:||View Description||Dichotomous Key|
Habit: Annual to perennial herb; glabrous or papillate and hairy; rhizomed, stoloned, or generally from taproot with a short caudex; occasionally dioecious. Stem: prostrate, decumbent, or generally erect to ascending, often +- ridged, red-brown in fruit, nodes +- swollen. Leaf: generally basal and cauline, alternate, petioled except uppermost cauline; ocreae deciduous to persistent. Inflorescence: axillary or generally terminal, generally panicle-like. Flower: generally bisexual, bell-shaped, glabrous, green, +- pink, or red; perianth lobes 6, persistent, in fruit outer 3 +- inconspicuous, inner 3 enlarged, hardened, +- veiny, covering fruit, midrib of 1--3 often expanded into tubercle; stamens 6; stigmas 3, fringed. Fruit: achene, glabrous, +- black or dark brown to +- red.
Species In Genus: 190--200 species: +- worldwide, 63 in North America. Etymology: (Latin: sorrel) Note: Mature inner perianth lobes generally needed for identification. Species often hybridize.
eFlora Treatment Author: Scott Simono
Jepson Online Interchange
Key to RumexPrevious taxon: Pterostegia drymarioides
Next taxon: Rumex acetosella
Citation for this treatment: Scott Simono 2017. Rumex, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=8801, accessed on April 25, 2017.
Citation for the whole project: Jepson Flora Project (eds.) 2017. Jepson eFlora, http://ucjeps.berkeley.edu/eflora/, accessed on April 25, 2017.