The plant is an annual of diffuse habit, with hairy stem, and two-paired, abruptly pinnate leaflets.
Fig. 158 is evenly or abruptly pinnate, as in the Honey-Locust.
Leaves opposite, abruptly pinnate with a stylet in place of the odd leaflet.
abruptly pinnate, pinnate without an odd leaflet at the end, 58.
The leaves are alternate, and abruptly pinnate; the oblong leaflets are not quite opposite.
Leaves 1½–2° long, opposite, abruptly pinnate, a thick stylet taking the place of the odd leaflet.