|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: Rumex||View Description||Dichotomous Key|
|Species:||View Description||Dichotomous Key|
Rumex acetosella L.
Habit: Perennial herb; rhizome creeping and/or taproot vertical, dioecious. Stem: ascending or erect, several from base, generally < 4 dm, slender. Leaf: generally +- basal; blade 2--6 cm, generally lanceolate to obovate-oblong, base widely tapered or generally hastate or sagittate, margin flat, tip acute or obtuse. Inflorescence: terminal, +- open, interrupted; whorls (3)5--8(10)-flowered; pedicel 1--3 mm. Flower: inner perianth lobes generally 1.2--1.7(2) mm, 0.5--1.3 mm wide, not or +- enlarged in fruit, free wing 0 or barely visible, base tapered, margin entire, tip obtuse or +- acute; tubercles 0. Fruit: 0.9--1.5 mm, 0.6--0.9 mm wide, brown. Chromosomes: 2n=14,28,42.
Ecology: +- disturbed, often acidic places; Elevation: < 3000 m. Bioregional Distribution: CA-FP, GB; Distribution Outside California: worldwide; native to Europe, Asia. Flowering Time: Apr--Jul Note: Large, variable, taxonomically complex, polyploid complex.
Synonyms: Rumex angiocarpus Murb.
eFlora Treatment Author: Scott Simono
Jepson Online Interchange
Weed listed by Cal-IPC
Previous taxon: Rumex
Next taxon: Rumex britannica
Citation for this treatment: Scott Simono 2016. Rumex acetosella, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=42362, accessed on December 03, 2016.
Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on December 03, 2016.