PENNSYLVANIA SMARTWEED
|
 |
| File Size: 48 KB |
|
|
|
Persicaria pensylvanica (L. ) M. Gómez
|
| [=Polygonum pensylvanicum L.] |
| Cloud County, Kansas |
| Annual |
| Height: 4-80 inches |
| Family: Polygonaceae - Buckwheat Family |
| Flowering Period: July, August, September,October |
|
| Stems: | | Ascending to erect, simple or branched, glabrous or appressed-pubescent distally, eglandular or stipitate-glandular distally. | | Leaves: | | Mostly cauline, alternate, ocrea brown, cylindric, .2 to .8 inch, chartaceous, base inflated, margins truncate, eciliate or ciliate with bristles to .02 inch, surface glabrous or appressed-pubescent, eglandular; petiole .04 to 1.2 inch; blade sometimes with dark triangular blotch adaxially, narrowly to broadly lanceolate, 1.6 to 9 inches long, .4 to 1.9 inches wide, base tapered to cuneate, margins antrorsely scabrous, apex acuminate, surfaces glabrous or appressed-pubescent, eglandular or glandular-punctate abaxially and occasionally adaxially so. | | Inflorescences: | | Terminal and axillary, usually erect, rarely nodding, uninterrupted, .2 to 2 inches tall, .2 to .6 inch wide; peduncle .4 to 2.5 inch, glabrous or pubescent, usually stipitate-glandular; ocreolae subtending clusters of flowers, overlapping, margins eciliate or with bristles to .02 inch. Pedicels ascending, .06 to .18 inch. | | Flowers: | | 2-14 per fascicle; perianth greenish white to rose, glabrous, not glandular-punctate; tepals 5, obovate to elliptic, .1 to .2 inch, veins prominent, not anchor-shaped; stamens 6-8, included; styles 2(-3), deciduous, included. | | Fruits: | | Achenes brown to black, usually discoid, rarely 3-angled, .08 to .13 inch, shiny, smooth. Seeds 1. | | Habitat: | | Mud flats in marshes and along shores of ponds and lakes, wet prairies, playas, spring runs, ditches, moist disturbed sites, waste places | | Distribution: | | Throughout Kansas | | Comments: | | Persicaria, peach and pertaining to, alluding to the resemblance of the leaves of some species to those of the peach and pensylvanica, Pennsylvanian. |
|
| Pennsylvania smartweed ocrea |  | | 76 KB | | Cloud County, Kansas |
| | Pennsylvania smartweed |  | | 59 KB | | Cloud County, Kansas |
| | Pennsylvania smartweed leaf |  | | 72 KB | | Cloud County, Kansas |
| | Pennsylvania smartweed |  | | 61 KB | | Cloud County, Kansas |
| | Pennsylvania smartweed habit |  | | 163 KB | | Cloud County, Kansas |
|
|
|
|
|
|
|
