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|Family: Polygonaceae||View Description||Dichotomous Key|
|Genus: Rumex||View Description||Dichotomous Key|
|Species:||View Description||Dichotomous Key|
Rumex triangulivalvis (Danser) Rech. f.
Habit: Perennial herb, glabrous; rhizomes 0 or short-creeping, taproot vertical. Stem: ascending to erect, (3)4--10 dm, with axillary shoots below 1° inflorescence. Leaf: blade 6--17 cm, 1--4(5) cm wide, linear to lanceolate, base tapered, margin entire, flat to wavy, tip acute. Inflorescence: axillary, terminal, dense, interrupted or not, branches branched; whorls 10--25-flowered; pedicels 4--8 mm, thread-like, +- thicker distally, joints +- not swollen. Flower: inner perianth lobes, (2)2.5--3.5(4) mm, (2)2.5--3(3.5) mm wide, widely triangular, base truncate or rounded, margin entire or +- notched near base, tip generally acute; tubercles generally 3, +- equal, width < 1/3 lobe (if 1 then width >= 1/2 lobe), glabrous or minute-warty. Fruit: 1.7--2.2 mm, 1--1.5 mm wide, brown to dark red-brown. Chromosomes: 2n=20.
Ecology: Many habitats, often marginal or disturbed; Elevation: < 3000 m. Bioregional Distribution: CaRH, SN, ScV (Sutter Buttes), SnGb, GB; Distribution Outside California: North America, Mexico; naturalized in Europe. Flowering Time: Apr--Jul
Synonyms: Rumex salicifolius var. triangulivalvis (Danser) J.C. Hickman
eFlora Treatment Author: Scott Simono
Jepson Online Interchange
Previous taxon: Rumex transitorius
Next taxon: Rumex utahensis
Citation for this treatment: Scott Simono 2016. Rumex triangulivalvis, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=42428, accessed on February 13, 2016.
Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on February 13, 2016.