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BUTTON SNAKEROOT







(Lacinaria squarrosa; Liatris squarrosa of Gray) Thistle family Flower-heads - Composite, about 1 in. long, bright purple or rose purple, of tubular florets only, from an involucre of overlapping, rigid, pointed bracts; each of the few flower-heads from the leaf axils along a slender stem in a wand-like raceme. Stem: 1/2 to 2 ft. high. Leaves: Alternate, narrow, entire. Preferred habitat - Dry, rich soil. Flowering Season - June-September. Distribution - Ontario to the Gulf of Mexico, westward to Nebraska. Beginning at the top, the apparently fringed flower-heads open downward along the wand, whose length depends upon the richness of the soil. All of the flowers are perfect and attract long-tongued bees and flies (especially Exoprosopa fasciata) and butterflies, which, as they sip from the corolla tube, receive the pollen carried out and exposed on the long divisions of the style. Some people have pretended to cure rattlesnake bites with applications of the globular tuber of this and the next species. The LARGE BUTTON SNAKEROOT, BLUE BLAZING STAR, or GAY FEATHER (L. scariosa), may attain six feet, but usually not more than half that height; and its round flower-heads normally stand well away from the stout stem on foot-stems of their own. The bristling scales of the involucre, often tinged with purple at the tips, are a conspicuous feature. With much the same range and choice of habitat as the last species, this Blazing Star is a later bloomer, coming into flower in August, and helping the goldenrods and asters brighten the landscape throughout the early autumn. The name of gay feather, miscellaneously applied to several blazing stars, is especially deserved by this showy beauty of the family. Unlike others of its class, the DENSE BUTTON SNAKEROOT, DEVIL'S BIT, ROUGH or BACKACHE ROOT, PRAIRIE PINE or THROATWORT (L. spicata), the commonest species we have, chooses moist soil, even salt marshes near the coast, and low meadows throughout a range nearly corresponding with that of the scaly blazing star. Resembling its relatives in general manner of growth, we note that its oblong involucre, rounded at the base, has blunt, not sharply pointed, bracts; that the flower-heads are densely set close to the wand for from four to fifteen inches; that the five to thirteen bright rose-purple florets which compose each head occasionally come white; that its leaves are long and very narrow, and that October is not too late to find the plant in bloom. BLUE and PURPLE ASTERS or STARWORTS Thistle family Evolution teaches us that thistles, daisies, sunflowers, asters, and all the triumphant horde of composites were once very different flowers from what we see today. Through ages of natural selection of the fittest among their ancestral types, having finally arrived at the most successful adaptation of their various parts to their surroundings in the whole floral kingdom, they are now overrunning the earth. Doubtless the aster's remote ancestors were simple green leaves around the vital organs, and depended upon the wind, as the grasses do - a most extravagant method - to transfer their pollen. Then some rudimentary flower changed its outer row of stamens into petals, which gradually took on color to attract insects and insure a more economical method of transfer. Gardeners today take advantage of a blossom's natural tendency to change stamens into petals when they wish to produce double flowers. As flowers and insects developed side by side, and there came to be a better and better understanding between them of each other's requirements, mutual adaptation followed. The flower that offered the best advertisement, as the composites do, by its showy rays; that secreted nectar in tubular flowers where no useless insect could pilfer it; that fastened its stamens to the inside wall of the tube where they must dust with pollen the underside of every insect, unwittingly cross-fertilizing the blossom as he crawled over it; that massed a great number of these tubular florets together where insects might readily discover them and feast with the least possible loss of time - this flower became the winner in life's race. Small wonder that our June fields are white with daisies and the autumn landscape is glorified with goldenrod and asters! Since North America boasts the greater part of the two hundred and fifty asters named by scientists, and as variations in many of our common species frequently occur, the tyro need expect no easy task in identifying every one he meets afield. However, the following are possible acquaintances to everyone: In dry, shady places the LARGE or BROAD-LEAVED ASTER (A. macrophyllus), so called from its three or four conspicuous, heart-shaped leaves on long petioles, in a clump next the ground, may be more easily identified by these than by the pale lavender or violet flower-heads of about sixteen rays each which crown its reddish angular stem in August and September. The disk turns reddish brown. In prairie soil, especially about the edges of woods in western New York, southward and westward to Texas and Minnesota, the beautiful SKY-BLUE ASTER (A. azureus) blooms from August till after frost. Its slender, stiff, rough stem branches above to display the numerous bright blue flowers, whose ten to twenty rays measure only about a quarter of an inch in length. The upper leaves are reduced to small flat bracts; the next are linear; and the lower ones, which approach a heart shape, are rough on both sides, and may be five or six inches long. Much more branched and bushy is the COMMON BLUE, BRANCHING, WOOD, or HEART-LEAVED ASTER (A. cordifolius), whose generous masses of small, pale lavender flower-heads look like a mist hanging from one to five feet above the earth in and about the woods and shady roadsides from September even to December in favored places. The WAVY or VARIOUS-LEAVED ASTER or SMALL FLEABANE (A. undulatus) has a stiff, rough, hairy, widely branching stalk, whose thick, rough lowest leaves are heart-shaped and set on long foot-stems; above these, the leaves have shorter stems, dilating where they clasp the stalk; the upper leaves, lacking stems, are seated on it, while those of the branches are shaped like tiny awls. The flowers, which measure less than an inch across, often grow along one side of an axis as well as in the usual raceme. Eight to fifteen pale blue to violet rays surround the disks which, yellow at first, become reddish brown in maturity. We find the plant in dry soil, blooming in September and October. By no means tardy, the LATE PURPLE ASTER, so-called, or PURPLE DAISY (A. patens), begins to display its purplish-blue, daisy-like flower-heads early in August, and farther north may be found in dry, exposed places only until October. Rarely the solitary flowers, that are an inch across or more, are a deep, rich violet. The twenty to thirty rays which surround the disk, curling inward to dry, expose the vase-shaped, green, shingled cups that terminate each little branch. The thick, somewhat rigid, oblong leaves, tapering at the tip, broaden at the base to clasp the rough, slender stalk. Range similar to the next species. Certainly from Massachusetts, northern New York, and Minnesota southward to the Gulf of Mexico one may expect to find the NEW ENGLAND ASTER or STARWORT (A. Novae-Angliae) one of the most striking and widely distributed of the tribe, in spite of its local name. It is not unknown in Canada. The branching clusters of violet or magenta-purple flower-heads, from one to two inches across - composites containing as many as forty to fifty purple ray florets around a multitude of perfect five-lobed, tubular, yellow disk florets in a sticky cup - shine out with royal splendor above the swamps, moist fields, and roadsides from August to October. The stout, bristle-hairy stem bears a quantity of alternate lance-shaped leaves lobed at the base where they clasp it. In even wetter ground we find the RED-STALKED, PURPLE-STEMMED, or EARLY PURPLE ASTER, COCASH, SWANWEED, or MEADOW SCABISH (A. puniceus) blooming as early as July or as late as November. Its stout, rigid stem, bristling with rigid hairs, may reach a height of eight feet to display the branching clusters of pale violet or lavender flowers. The long, blade-like leaves, usually very rough above and hairy along the midrib beneath, are seated on the stem. The lovely SMOOTH or BLUE ASTER (A. laevis), whose sky-blue or violet flower-heads, about one inch broad, are common through September and October in dry soil and open woods, has strongly clasping, oblong, tapering leaves, rough margined, but rarely with a saw-tooth, toward the top of the stem, while those low down on it gradually narrow into clasping wings. In dry, sandy soil, mostly near the coast, from Massachusetts to Delaware, grows one of the loveliest of all this beautiful clan, the LOW, SHOWY, or SEASIDE PURPLE ASTER (A. spectabilis). The stiff, usually unbranched stem does its best in attaining a height of two feet. Above, the leaves are blade-like or narrowly oblong, seated on the stem, whereas the tapering, oval basal leaves are furnished with long footstems, as is customary with most asters. The handsome, bright, violet-purple flower-heads, measuring about an inch and a half across, have from fifteen to thirty rays, or only about half as many as the familiar New England aster. Season August to November. The low-growing BOG ASTER (A. nemoralis), not to be confused with the much taller Red-stalked species often found growing in the same swamp, and having, like it, flower-heads measuring about an inch and a half across, has rays that vary from light violet purple to rose pink. Its oblong to lance-shaped leaves, only two inches long at best, taper to a point at both ends, and are seated on the stem. We look for this aster in sandy bogs from New Jersey northward and westward during August and September. The STIFF or SAVORY-LEAVED ASTER, SANDPAPER, or PINE STARWORT (Ionactis linariifolius), now separated from the other asters into a genus by itself, is a low, branching little plant with no basal leaves, but some that are very narrow and blade-like, rigid, entire and one-nerved, ascending the stiff stems. The leaves along the branches are minute and awl-shaped, like those on a branch of pine. Only from ten to fifteen violet ray flowers (pistillate) surround the perfect disk florets. From Quebec to the Gulf of Mexico, and westward beyond the Mississippi this prim little shrub grows in tufts on dry or rocky soil, and blooms from July to October. ROBIN'S, or POOR ROBIN'S, or ROBERT'S PLANTAIN; BLUE SPRING





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