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|Family: Polygonaceae||View Description||Dichotomous Key|
|Genus: Rumex||View Description||Dichotomous Key|
|Species:||View Description||Dichotomous Key|
Rumex hymenosepalus Torr.
Habit: Perennial herb, glabrous to puberulent; rhizomes short, roots tuber-like, clustered. Stem: erect (ascending), 2.5--9(10) dm, stout, +- fleshy. Leaf: blade (5)8--30 cm, 2--8(12) cm wide, fleshy, lanceolate to oblong, base tapered, margin entire, flat to +- wavy, tip acute to acuminate (obtuse). Inflorescence: terminal, dense, generally branched; whorls 5--20-flowered; pedicels 5--15(20) mm, thread-like, +- jointed. Flower: inner perianth lobes 11--16 mm, 9.5--14 mm wide, oblong- to round-cordate, base wavy, margin entire or at base notched, tip obtuse or +- acute; tubercles 0. Fruit: 4--5(7) mm, 2.5--4.5(5) mm wide, brown to red-brown. Chromosomes: 2n=40.
Ecology: Sandy, rocky places, plains, slopes, streambeds, alkaline soils; Elevation: < 2000 m. Bioregional Distribution: SnJV, SW, DMoj; Distribution Outside California: to Montana, Texas; Mexico (Baja California, Chihuahua). Flowering Time: Jan--May Note: Reported from CCo, SCoR.
eFlora Treatment Author: Scott Simono
Jepson Online Interchange
Previous taxon: Rumex fueginus
Next taxon: Rumex kerneri
Citation for this treatment: Scott Simono 2016. Rumex hymenosepalus, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=42399, accessed on October 20, 2016.
Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on October 20, 2016.