Weed
common spikerush, creeping spikeSpike:
Has a strong central axis (rachis) on which flowers or spikelets are directly attached (sessile), e.g. wheatgrasses.
-rush, marsh spikeSpike:
Has a strong central axis (rachis) on which flowers or spikelets are directly attached (sessile), e.g. wheatgrasses.-rush
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.
. Cross section is moderately triangular.
Brown to black
TuberculateTuberculate:
Having small pimple-like protuberances.
Tubercle (cap) is conic.
Barbed bristles from the base.
Not listed
Not included
Cyperaceae
Eleocharis palustris (L.) Roem. & Schult.
