Weed
marshpepper knotweed
AcheneAchene:
A dry, hard, one-chambered, one-seeded indehiscent fruit, as in buckwheat (Fagopyrum) or sunflower (Helianthus). The fruit wall is not united with the seed coat.
Triangularly ovateOvate:
Egg-shaped with basal end the broadest.
Black
Rough
Remnants of speckled floral parts present.
AcheneAchene:
A dry, hard, one-chambered, one-seeded indehiscent fruit, as in buckwheat (Fagopyrum) or sunflower (Helianthus). The fruit wall is not united with the seed coat. with one side larger than the other two. Some achenesAchene:
A dry, hard, one-chambered, one-seeded indehiscent fruit, as in buckwheat (Fagopyrum) or sunflower (Helianthus). The fruit wall is not united with the seed coat. approach a plano-convex configuration. Floral parts have distinct and wide-spaced dots on their surfaces. ApexApical:
The distal end of the fruit or seed away from the point of attachment or attachment scar.
is acutely pointed.
Not listed
Not included
Polygonaceae
Polygonum hydropiper L.
Persicaria hydropiper (L.) Opiz
Polygonum hydropiper L. var. projectum Stanford
