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FOC | Family List | FOC Vol. 5 | Polygonaceae | Rumex

6. Rumex angulatus K. H. Rechinger, Candollea. 12: 51. 1949.

紫茎酸模 zi jing suan mo

Herbs perennial. Stems erect, purple-red, 40-60 cm tall, glabrous, grooved. Basal leaves: petiole 3-5 cm; leaf blade oblong-lanceolate, 15-20 × 3-5 cm, both surfaces glabrous, base cuneate, apex acute; cauline leaves shortly petiolate, lanceolate; ocrea fugacious, membranous. Inflorescence terminal, paniculate, dense; rachis slightly zigzagged. Flowers bisexual. Pedicel filiform, slender, articulate below middle. Inner tepals enlarged in fruit; valves orbicular-cordate, ca. 5 × 4 mm, all without tubercles, net veined, base cordate, margin nearly entire or irregularly minutely crenate, apex obtuse. Achenes yellow-brown, shiny, ovoid, trigonous, ca. 3 mm. Fl. Jun-Jul, fr. Jul-Aug.

Watersides, moist valleys; 3000-4200 m. Xizang [Afghanistan, Kashmir, Pakistan].


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