distantly serrated; lower ones on long stalks, cordate or
cordate-ovate, crenate-dentate. Peduncles opposite to the
leaves, rather long. Flowers small, yellow. Sepals spreading,
hooded, keeled, yellow with the exception of the keel,
falling almost immediately after the flower has expanded.
Petals ovate, with a short linear claw; the nectariferous
fovea covered by a small fleshy scale. Stamens about 12
in number. Heads of fruit spherical. Nuts obliquely
ovate, covered with small tubercles, margined and shortly
beaked.—C. C. B.
