Persicaria robustior

(Small) E. P. Bicknell

Bull. Torrey Bot. Club 36: 455. 1909.

Common names: Stout smartweed r enouée robuste
Weedy
Basionym: Polygonum punctatum var. robustius Small Bull. Torrey Bot. Club 21: 477. 1894
Synonyms: Persicaria punctata var. robustior (Small) Small Polygonum punctatum var. majus (Meisner) Fassett Polygonum robustius
Treatment appears in FNA Volume 5. Treatment on page 584. Mentioned on page 582, 585, 586, 587.

Plants perennial, 3–20 dm; roots also sometimes arising from proximal nodes; rhizomes present, stolons sometimes present. Stems ascending, usually branched proximally, scarcely ribbed, glabrous, glandular-punctate; branches sometimes creeping and rooting at nodes. Leaves: ocrea light-brown, cylindric, 10–15 mm, chartaceous, base inflated, margins truncate, ciliate with bristles 3–12 mm, surface strigose, glandular-punctate; petiole 0.2–2 cm, glandular-punctate; blade without dark triangular or lunate blotch adaxially, lanceolate to elliptic-lanceolate, 4–20 × 2–4.5 cm, base tapered, margins antrorsely strigose, apex acute to acuminate, faces glabrous or main veins scabrous, glandular-punctate. Inflorescences terminal and axillary, erect, uninterrupted, 20–80 × 5–10 mm; peduncle 5–40 mm, glandular-punctate; ocreolae usually overlapping, margins eciliate or proximal ones sometimes ciliate with bristles to 1 mm. Pedicels ascending to spreading, 2–5 mm. Flowers 2–4 per ocreate fascicle, homostylous; perianth greenish proximally, white distally, glandular-punctate with punctae ± uniformly distributed, slightly accrescent; tepals 5, connate ca. 1/3 their length, obovate, 3.2–4.2 mm, veins prominent or not, not anchor-shaped, margins entire, apex obtuse to rounded; stamens 6–8, included; anthers pink or red, elliptic; styles 3, connate proximally. Achenes included or apex exserted, dark-brown to brownish black, 3-gonous, 2.7–3.6 × 2–2.5 mm, shiny, smooth.


Phenology: Flowering Jul–Oct.
Habitat: Peaty shores, often in water on coastal plain or near coast
Elevation: 0-1500 m

Distribution

V5 1194-distribution-map.gif

N.S., Ont., Que., Conn., Del., Fla., Ind., Ky., Maine, Md., Mass., Mich., Mo., N.H., N.J., N.Y., Ohio, Pa., R.I., Tex., Va., West Indies, Central America, South America

Discussion

Persicaria robustior often is synonymized with P. punctata.

Selected References

None.

Lower Taxa

None.

"/2" is not declared as a valid unit of measurement for this property.

... more about "Persicaria robustior"
dark-brown;black +
exserted +  and included +
spheroidal +, 2-3-gonous +, biconvex +  and discoid +
red +  and pink +
elliptic +  and ovate +
obtuse;rounded +
not +  and swollen +
Harold R. Hinds† +  and Craig C. Freeman +
(Small) E. P. Bicknell +
tapered +  and inflated +
Polygonum punctatum var. robustius +
4 cm40 mm <br />0.04 m <br /> (20 cm200 mm <br />0.2 m <br />) +
lanceolate;elliptic-lanceolate +
2 cm20 mm <br />0.02 m <br /> (4.5 cm45 mm <br />0.045 m <br />) +
lunate +, triangular +  and dark +
foliaceous +  and perfoliate +
scale-like +
0 cm0 mm <br />0 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
just below the soil surface or and above the soil surface +  and spreading +
Stout smartweed +  and r enouée robuste +
N.S. +, Ont. +, Que. +, Conn. +, Del. +, Fla. +, Ind. +, Ky. +, Maine +, Md. +, Mass. +, Mich. +, Mo. +, N.H. +, N.J. +, N.Y. +, Ohio +, Pa. +, R.I. +, Tex. +, Va. +, West Indies +, Central America +  and South America +
0-1500 m +
glandular-punctate +
adnate +, connate +  and distinct +
disarticulating +  and solid +
decumbent to erect +  and prostrate +
unwinged +  and winged +
black +, red +, brown +  and yellowish +
exserted +  and included +
pubescent +  and glabrous +
spheroidal +, 4-gonous +, lenticular +, biconvex +, discoid +, 3-gonous +  and 2-gonous +
Peaty shores, often in water on coastal plain or near coast +
dark-brown +  and brownish black +
0.27 cm2.7 mm <br />0.0027 m <br /> (0.36 cm3.6 mm <br />0.0036 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
2 cm20 mm <br />0.02 m <br /> (8 cm80 mm <br />0.08 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (1 cm10 mm <br />0.01 m <br />) +
nonmembranous +
sessile +  and petiolate +
deciduous +
entire +  and truncate +
eciliate +  and strigose +
swollen +
light-brown +
disintegrating +
deciduous +  and persistent +
scabrous +  and variously pubescent +
cylindric +
1 cm10 mm <br />0.01 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
coriaceous +
anatropous +, , +  and orthotropous +
ascending;spreading +
accrescent +
0.2 cm2 mm <br />0.002 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
spreading;erect +
0.5 cm5 mm <br />0.005 m <br /> (4 cm40 mm <br />0.04 m <br />) +
white;greenish +
campanulate +
accrescent +
not auriculate +
0.2 cm2 mm <br />0.002 m <br /> (2 cm20 mm <br />0.02 m <br />) +
Flowering Jul–Oct. +
(2-)3(-4)-carpellate +
Bull. Torrey Bot. Club +
slender;stout +
6 +  and 8 +
glandular-punctate +
scandent +  and prostrate +
penicillate +, fimbriate +  and capitate +
deciduous +  and persistent +
2-lobed +  and cylindric +
coriaceous +  and membranous +
deciduous +
exserted +  and included +
spreading;erect +
Persicaria punctata var. robustior +, Polygonum punctatum var. majus +  and Polygonum robustius +
Persicaria robustior +
Persicaria sect. Persicaria +
species +
obovate +
0.32 cm3.2 mm <br />0.0032 m <br /> (0.42 cm4.2 mm <br />0.0042 m <br />) +
coriaceous +
persistent +
membranous +
pubescent +  and glabrous +
not +  and prominent +
not anchor--shaped +
stoloniferous +, rhizomatous +, fibrous-rooted +  and taprooted +
12 +, 11 +  and 10 +