Vegetable
garden lettuce
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.
White to black
Serrated ribs; the area between the ribs is moderately rough.
Several ribs that are longitudinal and finely serrated. ApexApical:
The distal end of the fruit or seed away from the point of attachment or attachment scar.
is pointed.
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.
obovate with a pointed apexApical:
The distal end of the fruit or seed away from the point of attachment or attachment scar.
, flat, and with numerous longitudinal ribs. Ribs rough-textured. Color black to white with various varieties of mottled brown. Scar is basalBasal:
The base of the fruit or seed opposite the apical end.
.
Not listed
Included
Asteraceae
Lactuca sativa L.
Lactuca scariola L. var. integrata Gren. & Godr.
Lactuca scariola L. var. integrifolia (Bogenh.) G. Beck