Persicaria meisneriana var. beyrichiana

(Chamisso & Schlechtendal) C. C. Freeman

Sida 21: 291. 2004.

Basionym: Polygonum beyrichianum Chamisso & Schlechtendal Linnaea 3: 42. 1828
Synonyms: Polygonum meisnerianum var. beyrichianum (Chamisso & Schlechtendal) Meisner
Treatment appears in FNA Volume 5. Treatment on page 578.

Plants annual, 3–10 dm; roots not also arising from proximal nodes. Stems erect or scandent, ribbed, glabrous or pubescent with tufted hairs and glandular-hairs; prickles 1–1.5 mm. Leaves: ocrea brownish, cylindric, 8–20 mm, chartaceous, base inflated or not, sometimes with prickles, margins oblique, eciliate or ciliate with bristles 0.2–0.5 mm, surface glabrous or, rarely, glandular-pubesent; petiole 0.1–0.5 cm, leaves sometimes sessile; blade usually linear-lanceolate to lanceolate, rarely hastate, 5.5–14 × 0.8–1.5 cm, base cordate to truncate or cuneate, margins entire or, rarely, hastate, ciliate, apex acuminate, faces abaxially and adaxially usually glabrous, rarely appressed-pubescent with eglandular hairs, sometimes also with glandular-hairs, major veins retrorsely prickly. Inflorescences capitate or racemelike, uninterrupted, 4–15 × 3–8 mm; peduncle 10–80 mm, stipitate-glandular at least distally, often with retrorse prickles proximally; ocreolae overlapping, margins eciliate or ciliate with bristles to 0.5 mm. Pedicels mostly ascending, 2–3.5 mm. Flowers 2–3 per ocreate fascicle; perianth white to pink, glabrous, accrescent, not becoming blue and fleshy in fruit; tepals 5, connate ca. 1/2 their length, broadly elliptic to ovate, 2.3–3 mm, apex obtuse; stamens 5, filaments distinct, free; anthers yellow or pink, ovate; styles 3, connate to middle. Achenes included, dark-brown to black, 3-gonous, 3–4 × 2–3 mm, shiny, smooth.


Phenology: Flowering Jun–Oct.
Habitat: Swamps, wet ditches, thickets
Elevation: 0-80 m

Distribution

V5 1183-distribution-map.gif

Fla., Ga., La., S.C., Tex., Mexico, West Indies, Central America, South America, se Africa

Discussion

Selected References

None.

Lower Taxa

None.

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

dark-brown;black +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
3-gonous +
pink +  and yellow +
obtuse;acuminate +
not +  and swollen +
Harold R. Hinds† +  and Craig C. Freeman +
(Chamisso & Schlechtendal) C. C. Freeman +
cordate +  and truncate or cuneate +
Polygonum beyrichianum +
5.5 cm55 mm <br />0.055 m <br /> (14 cm140 mm <br />0.14 m <br />) +
hastate;usually linear-lanceolate;lanceolate +
0.8 cm8 mm <br />0.008 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
lunate +, triangular +  and dark +
foliaceous +  and perfoliate +
scale-like +
0 cm0 mm <br />0 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
just below the soil surface or and above the soil surface +  and spreading +
Fla. +, Ga. +, La. +, S.C. +, Tex. +, Mexico +, West Indies +, Central America +, South America +  and se Africa +
0-80 m +
appressed-pubescent +  and glabrous +
free +  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 +
Swamps, wet ditches, thickets +
0.4 cm4 mm <br />0.004 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
racemelike +  and capitate +
0.3 cm3 mm <br />0.003 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
nonmembranous +
deciduous +
not auriculate +
ciliate +  and eciliate +
swollen +
disintegrating +
deciduous +  and persistent +
scabrous +  and variously pubescent +
cylindric +
0.8 cm8 mm <br />0.008 m <br /> (2 cm20 mm <br />0.02 m <br />) +
coriaceous +
anatropous +, , +  and orthotropous +
accrescent +
0.2 cm2 mm <br />0.002 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
spreading;erect +
stipitate-glandular +
1 cm10 mm <br />0.01 m <br /> (8 cm80 mm <br />0.08 m <br />) +
blue;white;pink +
campanulate +
accrescent +
0.1 cm1 mm <br />0.001 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Flowering Jun–Oct. +
(2-)3(-4)-carpellate +
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
slender;stout +
branched +  and simple +
pubescent +  and glabrous +
penicillate +, fimbriate +  and capitate +
deciduous +  and persistent +
2-lobed +  and cylindric +
coriaceous +  and membranous +
deciduous +
spreading;erect +
spreading;erect +
, +  and glabrous +
Polygonum meisnerianum var. beyrichianum +
Persicaria meisneriana var. beyrichiana +
Persicaria meisneriana +
variety +
broadly elliptic +  and ovate +
0.23 cm2.3 mm <br />0.0023 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
coriaceous +
persistent +
membranous +
pubescent +  and glabrous +
stoloniferous +, rhizomatous +, fibrous-rooted +  and taprooted +
12 +, 11 +  and 10 +