|University of California, Berkeley|
|Jepson eFlora: Taxon page
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|Family: Polygonaceae||View Description||Dichotomous Key|
|Genus: Rumex||View Description||Dichotomous Key|
|Species:||View Description||Dichotomous Key|
Rumex venosus Pursh
Habit: Perennial herb, generally glabrous; rhizomes creeping. Stem: ascending (erect), (1)1.5--3(4) dm, generally with axillary shoots near base. Leaf: blade (2)4--12(15) cm, 1--5(6) cm wide, lance-ovate to ovate-elliptic, +- leathery, base generally tapered, margin entire, flat to +- wavy, tip acute to acuminate. Inflorescence: axillary, terminal, dense, interrupted below or not; whorls 5--15-flowered; pedicels (8)10--16 mm, thread-like to +- thickened, joints +- swollen. Flower: inner perianth lobe 13--18(20) mm, (20)23--30 mm wide, round to widely round-cordate, base generally deep-notched, margin entire, tip rounded, obtuse, or widely triangular; tubercles generally 0. Fruit: 5--7 mm, 4--6 mm wide, brown to dark brown. Chromosomes: 2n=40.
Ecology: Dry, sandy places; Elevation: 1200--1800 m. Bioregional Distribution: MP; Distribution Outside California: western North America. Flowering Time: Mar--Jun
eFlora Treatment Author: Scott Simono
Jepson Online Interchange
Listed on CNPS Rare Plant Inventory
Previous taxon: Rumex utahensis
Next taxon: Rumex violascens
Citation for this treatment: Scott Simono 2017. Rumex venosus, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=42437, accessed on March 28, 2017.
Citation for the whole project: Jepson Flora Project (eds.) 2017. Jepson eFlora, http://ucjeps.berkeley.edu/eflora/, accessed on March 28, 2017.