Polygonum ramosissimum subsp. prolificum
Sida 20: 995. 2003.
Plants bluish green when fresh, dark-brown or black after drying, homophyllous. Stems 10–80 cm. Leaf-blades bluish green, oblanceolate, 8–30 (–35) × 4–6 mm, apex rounded or obtuse; stem-leaves 1–2.5 (–3.5) times as long as branch leaves; distal leaves overtopping flowers. Inflorescences axillary; cymes uniformly distributed or crowded toward tips of branches, 2–4-flowered. Pedicels enclosed in ocreae, 1–2 mm. Flowers: perianth 2–2.8 (–3) mm; tepal margins white or pink; stamens 3. Achenes enclosed in or exserted from perianth, 1.6–2 (–2.4) mm, shiny or dull, smooth, roughened, or obscurely tubercled; late-season achenes 4–10 mm. 2n = 60.
Phenology: Flowering Jul–Nov.
Habitat: Wet, saline places
Elevation: 0-2000 m
Distribution
Alta., B.C., Man., Ont., P.E.I., Que., Sask., Ark., Calif., Conn., Del., Idaho, Ill., Iowa, Kans., Ky., La., Maine, Md., Mass., Minn., Miss., N.H., N.J., N.Mex., N.Y., N.C., N.Dak., Okla., Oreg., Pa., R.I., S.Dak., Tenn., Tex., Utah, Vt., Va., Wash., W.Va., Wyo.
Discussion
Selected References
None.
Lower Taxa
"/2" is not declared as a valid unit of measurement for this property.