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MILKWORT FAMILY (Polygalaceae)
Fringed Milkwort or Polygala; Flowering Wintergreen; Gay Wings
Polygala paucifolia
Flowers--Purplish rose, rarely white, showy, over 1/2 in. long,
from 1 to 4 on short, slender peduncles from among upper leaves. Calyx of 5
unequal sepals, of which 2 are wing-like and highly colored like petals.
Corolla irregular, its crest finely fringed; 6 stamens; 1 pistil. Also pale,
pouch-like, cleistogamous flowers underground. Stem: Prostrate, 6 to
15 in. long, slender, from creeping rootstock, sending up flowering shoots 4
to 7 in. high. Leaves: Clustered at summit, oblong, or pointed
egg-shaped, 1-1/2 in. long or less; those on lower part of shoots
scale-like.
Preferred Habitat--Moist, rich woods, pine lands, light soil.
Flowering Season--May-July.
Distribution--Northern Canada, southward and westward to Georgia
and Illinois.
Gay companies of these charming, bright little blossoms hidden away in
the woods suggest a swarm of tiny mauve butterflies that have settled among
the wintergreen leaves. Unlike the common milkwort and many of its kin that
grow in clover-like heads, each one of the gay wings has beauty enough to
stand alone. Its oddity of structure, its lovely color and enticing fringe,
lead one to suspect it of extraordinary desire to woo some insect that will
carry its pollen from blossom to blossom and so enable the plant to produce
cross-fertilized seed to counteract the evil tendencies resulting from the
more prolific self-fertilized cleistogamous flowers buried in the ground
below.
Common, Field, or Purple Milkwort; Purple Polygala
Polygala sanguinea (P. viridescens)
Flowers--Numerous, very small, variable; bright magenta pink, or
almost red, or pale to whiteness, or greenish, clustered in a globular
clover-like head, gradually lengthening to a cylindric spike. Stem: 6
to 15 in. high, smooth, branched above, leafy. Leaves: Alternate,
narrowly oblong, entire.
Preferred Habitat--Fields and meadows, moist or sandy.
Flowering Season--June-September.
Distribution--Southern Canada to North Carolina, westward to the
Mississippi.
When these bright clover-like heads and the inconspicuous greenish ones
grow together, the difference between them is so striking it is no wonder
Linnaeus thought they were borne by two distinct species, Sanguinea
and viridescens, whereas they are now known to be merely two forms of
the same flower. At first glance one might mistake the irregular little
blossom for a member of the pea family; two of the five very unequal
sepals--not petals--are colored wings. These bright-hued calyx-parts overlap
around the flower-head like tiles on a roof. Within each pair of wings are
three petals united into a tube, split on the back, to expose the vital
organs to contact with the bee, the milkwort's best friend.
Plants of this genus were named polygala, the Greek for much milk, not
because they have milky juice--for it is bitter and clear--but because
feeding on them is supposed to increase the flow of cattle's milk.
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