Weed
field scabiosa
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.
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.
are spatulateSpatulate:
Having a narrow base and rounded apex. Pear-shaped.
and enclosed in the flower base.
Brown
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.
are enclosed in united petal bases.
Achene apexApical:
The distal end of the fruit or seed away from the point of attachment or attachment scar.
has lateral spikesSpike:
Has a strong central axis (rachis) on which flowers or spikelets are directly attached (sessile), e.g. wheatgrasses.
.
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.
has a long neck. Units usually include the base of the composite flower.
Not listed
Not included
For more information, see ISMA fact sheet.
Dipsacaceae
Knautia arvensis (L.) J.M. Coult.
Scabiosa arvensis L.