Weed
hop sedge
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.
Top view–diamond
Cross-section–triangular
Brown
Smooth
PerigyniumPerigynium:
The saclike bract that subtends the pistillate flower of sedges (Carex), which in fruit becomes a flask-shaped envelope surrounding the fruit (achene).
is papery with long style.
PerigyniumPerigynium:
The saclike bract that subtends the pistillate flower of sedges (Carex), which in fruit becomes a flask-shaped envelope surrounding the fruit (achene). with several ribs and a long neck. 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 a strong, persistent style.
Not listed
Not included
Cyperaceae
Carex lupulina Muhl. ex Willd.
Carex lupulina Muhl. ex Willd. var. pedunculata A. Gray
Carex ×macounii Dewey
