Rumex chalepensis Mill.

The occurrence of this Irano-Turanian element in E. Asia is in need of verification on the basis of complete specimens. The specimen Santapau 6625 from Urak has exceptional basal leaves: 4 times broader than long.

Herbs perennial. Roots black-brown, large, to 2.5 cm in diam. Stems erect, 30-60 cm, grooved, branched. Basal leaves: petiole 3-4 cm; leaf blade oblong, 5-20 × 3-8 cm, both surfaces glabrous, midvein prominent abaxially, base rounded or subcordate, margin slightly undulate, apex obtuse or acute; cauline leaves shortly petiolate, small; ocrea fugacious, membranous. Inflorescence paniculate, large, lax. Flowers bisexual. Pedicel articulate below middle. Outer tepals elliptic; inner tepals enlarged in fruit; valves triangular-cordate, 5-6 mm, all valves with tubercles, conspicuously net veined, base subcordate, margin denticulate, apex acute; denticles 1-1.5 mm; tubercles oblong, ca. 2 mm. Achenes brown, shiny, ellipsoid, sharply trigonous, 2.5-3 mm, base narrow, apex acute. Fl. Apr-May, fr. May-Jun.

Perennial. Stem erect, up to 120 cm high, branching in the upper half; branches arcuate-divaricate, forming a broad open panicle. Basal leaves 2-3 times longer than broad, up to 20 cm long, ovate-oblong or ovate with cordate base, acute or subacute apex, petiole shorter than lamina; lower stem leaves with slightly cordate base, ovate-lanceolate, acute; upper stem leaves gradually smaller and narrower acute with short petiole; all leaves flat or nearly so. Whorl many-flowered, all ± remote. Pedicels thin, articulate below the middle, slightly longer or up to twice as long as the valve. External perianth segments c. 1.5 mm long. Valves c. 5 x c.5 mm, (rotundate-) cordate, with ± acute tip, distinctly regularly reticulate, with 4-9 unequal teeth near the base, usually all with unequal grains. Nut c. 3 mm long, brown, broadest ± slightly below the middle.

Anhui, Gansu, Hebei, Henan, Hubei, Jiangsu, Shaanxi, Shandong, Shanxi, Xinjiang, Zhejiang [Afghanistan, Kazakhstan, Kyrgyzstan, Pakistan, Kashmir, Turkmenistan; SW Asia, Europe].

Distribution: Armenia, Transcaucasia, Iran, Afghanistan, Pakistan and C. Asia.

Fl. Per.: May-August.

Along ditches, moist valleys; 100-1500 m.

Rumex dictyocarpus Boissier & Buhse; R. drobovii Korovin.

R. denticulatus C. Koch in Linnaea 22: 208. 1840 non Campd.; R. syriacus Meisn. in DC. Prodr. 14: 53. 1856; Losinsk., l.c. 477; R. dictyocarpus Boiss. & Buhse in Nouv. Mém. Soc. Nat. Mosc. 12: 192. 1860. R. obtusifolius Boiss., Fl. Or. 4: 1011. 1879 p.p.; R. turkestanicus O. Paulsen in Bot. Tidsskr. 29: 154. 1909. R. drobovi E. Korov., Opred. Rast. Okr. Taschkent 154. 1924.

Rumex chalepensis là một loài thực vật có hoa trong họ Rau răm. Loài này được Mill. miêu tả khoa học đầu tiên năm 1768.

网果酸模（学名：Rumex chalepensis），为蓼科酸模属下的一个植物种。