Isopyrum Gracilis - Hardy Perennial
Author: John Wood
Isopyrum Gracilis Described.
Isopyrum Gracilis - Isopyrum Gracilis.
Slender Isopyrum; Nat. Ord. Ranunculaceæ.
This is a hardy herbaceous plant, of great beauty. The flowers are not showy,
but their great numbers and arrangement render them of importance in what may
be termed a fine-foliaged subject. The Isopyrums are very nearly related to the
thalictrums or rues, and this one greatly resembles the maidenhair-like section,
one of which it is often taken for. There is, however, an important botanical
difference between the two genera: the thalictrums have no calyx, and the Isopyrums
have. Still, as the flowers of both are very small, that feature is not very
observable. As a decorative plant it may be classed with the maidenhair-like
rues, and the illustration may be said to give a fair idea of three or four species.
Isopyrum under notice grows 12in. or 15in. high, and produces its dark brown
flowers on slender, well-branched stems, forming feathery panicles, which have
a graceful appearance. The flowers are very small, and composed of a five-cleft
calyx, five equal petals, and numerous long, pendent seed-organs; the stems are
elegantly furnished with the fine-cut foliage. The leaves are large, but the
leaflets small, as may be seen by the one given, full size, in the drawing,
being somewhat cordate, lobed, and dentate; they have hair-like stalks, which
add to their elegance of arrangement, and their glaucous colour further enhances
This light and diffuse subject may be usefully planted to relieve other kinds;
in beds or lines it looks well, having a lace-like effect; as a cut flower or
spray it nearly equals maidenhair, and for mixing with large flowers, it perhaps
excels. Either cut or in the growing state it is very durable. It may be grown
in average garden soil, but to have it fine, it should be given vegetable soil
and a moist situation, not shaded. It is propagated by seeds or division of the
roots in autumn.
Flowering period, July and August.
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