Difference between revisions of "Polygonum ramosissimum subsp. prolificum"
Sida 20: 995. 2003.
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Revision as of 20:06, 24 September 2019
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.