Weed
bitter dock, bluntleaf dock
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.
ObovateObovate:
Inverted egg shaped with apical end the broadest.
; triangular in cross section.
Light brown
Smooth
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. margins have little or no recurving at the apexApical:
The distal end of the fruit or seed away from the point of attachment or attachment scar.
and base.
Calyx with callosities. Margins of calyx lobes have long teeth on the basalBasal:
The base of the fruit or seed opposite the apical end.
half.
State Noxious Weed: Alabama, Arkansas, Connecticut, Florida, Georgia, Kansas, Louisiana, Mississippi, Missouri, Nebraska, North Carolina, Oklahoma, South Carolina, Tennessee, Texas, Washington
Not included
For more information, see ISMA fact sheet, Rumex spp.
Polygonaceae
Rumex obtusifolius L.
Acetosa oblongifolia (L.) Á. Löve & D. Löve
Rumex obtusifolius L. ssp. agrestis (Fr.) Danser
Rumex obtusifolius L. ssp. sylvestris (Wallr.) Rech. f.
Rumex obtusifolius L. var. sylvestris (Wallr.) Koch
