P. diver gens, foliis cordatis acutis 5-7-lobis acutis argute
insequaliter- dentatis undulatis glabriusculis: lobis
subrecurvis, stipulis lanceolatis acuminatis, umbellis
plurifloris, petalis patentibus : inferioribus spatulato-
obovatis, tubo nectarifero calyce acuminato multo
breviore.
Stem frutescent, branching, thickly clothed with
spreading unequal hairs. Leaves cordate, acute, 5 to
7-lobed, undulate, unequally and deeply toothed with-
sharp rigid teeth, hairy on both sides, but glossy; the
lobes more or less recurved: upper ones not so much
cordate at the base, deeper lobed, and the teeth longer. Petioles flattened, and furrowed on the upper side, and
convex on the lower, hairy. Stipules lanceolate, taper-
pointed, hairy, and fringed. Umbels several-flowered. Peduncles nearly cylindrical, hairy. Involucre of 6 ovate,
or broadly lanceolate, acute, hairy bractes. Pedicles
much longer than the bractes, thickly clothed with unequal
hairs. Calyx 5-cleft; the segments very long, lanceolate,
taper-pointed, much longer than the nectariferous
tube. Petals 5, much spreading; the 2 upper ones
broadest, obovate, of a purple lilac, with a large dark
velvetty patch in the centre, and numerous dark lines
from thence to the base, that are more or less branched
over the petals; lower petals narrower, very much
spreading, spatulately obovate, narrowing to the base,
of a lighter colour. Stamens 10, connected at the base,
7 only bearing anthers: pollen orange-coloured. Style
dark purple, hairy at the base, and smooth upwards.