Weed
scentless false mayweed
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.
Rectangular
Yellow ribs and brown interspaces
Strong ribs and wrinkled interspaces
Very strong longitudinal ribs; base and apexApical:
The distal end of the fruit or seed away from the point of attachment or attachment scar.
blunt; collar present.
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. rectangular longitudinally and square in cross section; shoulders of apicalApical:
The distal end of the fruit or seed away from the point of attachment or attachment scar. end very strong; basalBasal:
The base of the fruit or seed opposite the apical end.
end rounded to the attachment scar. Strong longitudinal ribs located at the corner of the square cross section; ribs are yellow with interspaces wrinkled and brownish black.
Not listed
Not included
Asteraceae
Tripleurospermum perforatum(Mérat) M. Lainz.
Chamomilla inodora (L.) Gilib.
Matricaria inodora L.
Matricaria maritima L. var. agrestis (Knaf) Wilmott
Matricaria maritima L. ssp. inodora (L.) Clapham
Matricaria perforata Mérat
Tripleurospermum inodorum (L.) Sch. Bip.
