Click the number at the start of a key lead to highlight both that lead and its corresponding lead. Click again to show only the two highlighted leads. Click a third time to return to the full key with the selected leads still highlighted.

Key to Elatine

Elatinaceae

Elatine

Copy permalink to share

1 Capsules 2-locular; petals 2; leaf base rounded to truncate
1 Capsules 3-locular; petals 3 or 0; leaf base attenuate to cuneate (rarely rounded in E. brachysperma).
  2 Pedicels 0.5-2.5 mm long, recurved in fruit
  2 Pedicels 0-0.5 mm long, erect in fruit.
    3 Seeds with (9-) 14-17 pits per (longitudinal) row; seed pits 1-2× as long as wide, the ends rounded
    3 Seeds with (13-) 16-30 (-35) pits per (longitudinal) row; seed pits 2-3× as long as wide, the ends angular-hexagonal.
      4 Leaves broadest towards the tip (obovate to spatulate); leaf apex rounded to slightly emarginate
      4 Leaves broadest near the middle; leaf apex acute to obtuse