Next of kin to the golden coreopsis, it behooves some of the bur-marigolds to redeem their clan's reputation for ugliness and certainly the brook sunflower is a not unworthy relative. How gay the ditches and low meadows are with its bright, generous bloom in late summer, and until even the goldenrod wands turn brown! Yet all this show is expended merely for advertising purposes. The golden ray florets, sacrificing their fertility to the general welfare of the cooperative community, which each flower-head is in reality, have grown conspicuous to attract bees and wasps, butterflies, flies, and some beetles to the dingy mass of tubular florets in the center, in which nectar is concealed, while pollen is exposed for the visitors to transfer as they crawl. The rays simply make a show; within the minute, insignificant looking tubes is transacted the important business of life.
Later in the season, when the bur-marigolds are transformed into armories bristling with rusty, two-pronged, and finely-barbed pitchforks (Bidens = two teeth), our real quarrel with the tribe begins. The innocent passerby - man, woman, or child, woolly sheep, cattle with switching tails, hairy dogs or foxes, indeed, any creature within reach of the vicious grappling-hooks - must transport them on his clothing; for it is thus that these tramps have planned to get away from the parent plant in the hope of being picked off, and the seeds dropped in fresh colonizing ground; travelling in the disreputable company of their kinsmen the beggar-ticks and Spanish needles, the burdock burs, cleavers, agrimony, and tick-trefoils.
BEGGAR-TICKS, STICK-TIGHT, RAYLESS MARIGOLD, BEGGAR-LICE, PITCHFORKS, or STICK-SEED (B. frondosa) sufficiently explains its justly defamed character in its popular names. Numerous dull, dark, tawny orange flower-heads without, rays, or with insignificant ones scarcely to be detected, and surrounded by taller leaf-like bracts, add little to the beauty of the moist fields and roadsides where they rear themselves on long peduncles from July to October. The smooth, erect, branched, and often reddish, stem may be anywhere from two to nine feet tall. Usually the upper leaves are not divided, but the lower ones are pinnately compounded of three to five divisions, the segments lance-shaped or broader, and sharply toothed. As in all the bur-marigolds, we find each floret's calyx converted into a barbed implement - javelin, pitchfork, or halberd - for grappling the clothing of the first innocent victim unwittingly acting as a colonizing agent.
SNEEZEWEED; SWAMP SUNFLOWER
(Helenium autumnale) Thistle family
Flower-heads - Bright yellow, to 2 in. across, numerous, borne on long peduncles in corymb-like clusters; the rays 3 to 5 cleft, and drooping around the yellow or yellowish-brown disk. Stem: 2 to 6 ft. tall, branched above. Leaves: Alternate, firm, lance-shaped to oblong, toothed, seated on stem or the bases slightly decurrent; bitter. Preferred Habitat - Swamps, wet ground, banks of streams. Flowering Season - August-October. Distribution - Quebec to the Northwest Territory; southward to Florida and Arizona.
September, which also brings out lively masses of the swamp sunflower in the low-lying meadows, was appropriately called our golden month by an English traveler who saw for the first time the wonderful yellows in our autumn foliage, the surging seas of goldenrod; the tall, showy sunflowers, ox-eyes, rudbeckias, marigolds, and all the other glorious composites in Nature's garden, as in men's, which copy the sun's resplendent disk and rays to brighten with one final dazzling outburst the somber face of the dying year.
To the swamp sunflowers honey-bees hasten for both nectar and pollen, velvety bumblebees suck the sweets, leaf-cutter and mason bees, wasps, some butterflies, flies, and beetles visit them daily, for the round disks mature their perfect fertile florets in succession. Since the drooping ray flowers, which are pistillate only, are fertile too, there is no scarcity of seed set, much to the farmer's dismay. Most cows know enough to respect the bitter leaves' desire to be let alone; but many a pail of milk has been spoiled by a mouthful of Helenium among the herbage. Whoever cares to learn from experience why this was called the sneezeweed, must take a whiff of snuff made of the dried and powdered leaves.
The PURPLE-HEAD SNEEZEWEED (H. nudiflorum), its yellow rays sometimes wanting, occurs in the South and West.
TANSY; BITTER-BUTTONS
(Tanacetum vulgare) Thistle family
Flower-heads - Small, round, of tubular florets only, packed
within a depressed involucre, and borne, in flat-topped corymbs.
Stem: 1 1/2 to 3 ft. tall, leafy. Leaves: Deeply and pinnately
cleft into narrow, toothed divisions; strong scented.
Preferred Habitat - Roadsides; commonly escaped from gardens.
Flowering Season - July-September.
Distribution - Nova Scotia, westward to Minnesota, south to
Missouri and North Carolina. Naturalized from Europe.