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.

Click images to enlarge and show more photo credit.

Key to Aeschynomene

Fabaceae

Aeschynomene

Copy permalink to share

1 Floating aquatic with swollen, inflated stems
1 Terrestrial, prostrate or upright, stems not inflated.
  2 Prostrate perennial; leaves with 3-19 leaflets; stipules basifixed; loment articles separated by a joint and also an isthmus; calyx campanulate; [of dry, sandy or of disturbed areas].
  2 Erect or ascending annual; leaves with 21-51 or more leaflets; stipules peltate or medifixed; loment articles separated by only a joint; calyx bilabiate; [of moist to wet habitats].
    3 Leaflets with 1 longitudinal nerve; mature fruit stipe 4-25 mm long; [section Aeschynomene].
      4 Loment sinuses notched relatively symmetrically on either side, to about 2/3-3/4 the width of the segment; [FL peninsula]
      4 Loment sinuses either notched asymmetrically, or not notched as deeply; [collectively widespread]
        5 Mature fruit stipe 12-25 mm long; corolla (10-) 12-15 mm long; fruit segments 5-7 mm long, 4.5-6.5 mm wide; paired bracts subtending each flower toothed (rarely entire); standard greenish-yellow with distinct dark-red veins; leaflets 6-25 mm long, 2-5 mm wide
        5 Mature fruit stipe 4-8 (-10) mm long; corolla 7-13 (-15) mm long; fruit segments 4-6 mm long, 3.5-6 mm wide; paired bracts subtending each flower toothed or entire; standard pale orange or reddish-orange, the veins usually indistinct; leaflets 2.5-25 mm long, 1-4 mm wide.
          6 Paired bracts subtending each flower entire (rarely toothed); leaflets 2.5-13 mm long, 1-2.5 mm wide; fruit segments 4-5 mm long, 3.5-5 mm wide
          6 Paired bracts subtending each flower toothed (rarely entire); leaflets 6-25 mm long, 1.5-4 mm wide; fruit segments 5-6 mm long, 5-6 mm wide