Difference between revisions of "Persicaria wallichii var. wallichii"
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|subfamily=Polygonaceae subfam. Polygonoideae | |subfamily=Polygonaceae subfam. Polygonoideae | ||
|genus=Persicaria | |genus=Persicaria | ||
Revision as of 17:36, 18 September 2019
Herbs, perennial, sometimes suffrutescent, 7–12(–25) dm; roots not also arising from proximal nodes; rhizomes present. Stems ribbed, glabrous or densely pubescent. Leaves: ocrea reddish brown, cylindric, 10–40 mm, base inflated, surface glabrous or densely pubescent; petiole 0.3–2(–3) cm, glabrous or densely pubescent; blade (7.5–)9–22(–27) × 2.8–7.8 cm, base cordate to truncate, margins ciliate, apex acuminate to caudate-acuminate, faces pubescent abaxially, glabrous or pubescent adaxially. Inflorescences 40–110 × 10–55 mm; peduncle 10–80 mm, glabrous or pubescent; ocreolae not overlapping, margins eciliate. Pedicels ascending to spreading, 1–4 mm, glabrous. Flowers 3–9 per ocreate fascicle; perianth white or pinkish, often with scattered reddish glands, glabrous, nonaccrescent; tepals oblong to obovate, dimorphic, outer 3 larger than inner 2, 2.2–3.8 mm, margins entire, apex obtuse to rounded; filaments inserted at bases of tepals, distinct, glabrous; anthers red to purple, ovate; styles distinct. Achenes included, brown, 3-gonous, 2.1–2.5 × 1.3–1.8 mm, dull, minutely roughened. 2n = 22.
Phenology: Flowering Aug–Oct.
Habitat: Moist disturbed places, marshes
Elevation: 0-500 m
Distribution
St. Pierre and Miquelon, B.C., Calif., Mass., Oreg., Asia (Bhutan, China, India, Nepal, Tibet).
Discussion
Selected References
None.