XIV. COLTSFOOT FLOWERS.

Down by the streamlet in the Frying Pan, in the heavy clay soil of the bank, I see this morning the flower-scapes of the coltsfoot are lifting betimes their curious bent heads. Two days more, and they will star the bare earth with their golden blossoms. That is a sure sign that winter is over, the labourers will tell you, weatherwise in their ancestral lore; and, indeed, the coltsfoot is a prudent and a wary herb, which I have seldom known go wrong in its calculation of probabilities. It makes its own weather forecast, independently of the Meteorological Office, and it backs its opinion. As long as it thinks frost is likely to recur, it “lies low,” like Br’er Rabbit; but as soon as it feels pretty confident the worst is past, and no more hard weather will come to nip it in the bud, it boldly sends up its leafless flower-stem, looking more like a shoot of asparagus than anything else, with which most people are familiar. I have never seen it make a serious mistake, even in the sunniest and most treacherous English spring weather.

Who gave it its wisdom?—to parody Mr. Swinburne. How did it come so well to time itself as the earliest among our conspicuous spring flowers? Well, coltsfoot is a composite, belonging to the same minor group as the common ragworts—its very leaf, indeed, being a good deal like some of the larger ragworts in type, especially those handsome exotics of the race, so much cultivated in greenhouses under the name of cinerarias. But living in cold northern climates, on the banks of streams, in deep clay soil, where it spreads most vigorously, it has learned by experience to accommodate itself to its environment. It did so, in fact, many thousand years before Mr. Herbert Spencer taught poor recent humanity that latter-day catchword. Growing in thickset places, by running water, where its own large leaves and those of its neighbours would overshadow and hide its dainty blossoms in the height of summer, it has acquired the odd trick of sending them up naked, on the naked clay, in very early spring, when they court and easily attract the attention of the first spring insects to visit and fertilize them. In order to do this it must lay by material the summer before, and that material the prudent plants bury deep out of harm’s way, in their creeping underground rootstock. Owing to the dampness and chilliness of the clay, which suits its constitution best, coltsfoot hides its rootstock exceptionally deep in the earth, and this precaution affords it, on the whole, a safe protection alike against cold and against burrowing enemies. As long as the frozen earth remains chilly underneath, the buds make no stir; but as soon as the subsoil begins to rise in temperature to a very modest point the flower-heads grow apace from the buried material, exactly as hyacinths do from a bulb when placed in water in a slightly warm atmosphere. And such a raising of temperature in the subsoil is one of the surest signs that winter has spent itself.

The flower-stem of coltsfoot rises bare and leafless, save for a few small scales, such as one sees on asparagus; but it is thickly covered with a warm cottony wool, to keep out winter, and the buds are bent down so as to protect them at once from chill and from injury. Each stem terminates in a single pretty fluffy yellow flower-head, composed of innumerable golden florets of two kinds—those of the ray very narrow and ragged, giving the entire head its characteristic tasselled appearance; while those of the central disk are much larger, and bell-shaped. The entire blossom looks like a dandelion at first sight to a careless observer; but when you come to examine it closely, it is a far more dignified and beautiful flower. The tone of its yellow is richer, yet mellower, and its fluffy little ray-florets have a Japanesque charm in their flowing looseness.

So long as the flowers continue to bloom, you see no leaves; whence it comes about that many people know well the blossoms of coltsfoot in spring, and the foliage in summer, without having the faintest idea that they belong to one another. But if you keep your eye on the place where the yellow stars arose, after the flowers have withered and the white heads have blown away in copious flights, their wee feathery fruitlets, you will see by-and-by some big broad angular leaves, very thick and noticeable, rising high into the air from the same buried rootstock in the self-same position. Few leaves are more remarkable, with their heart-shaped bases and their obtrusive angles; while the under side is thickly covered throughout with a cottony wool, loose, white, and abundant. They are big, because they overtop the other leaves about, and so gain free access to the air and sunshine. They have elbow-room to spread in. Their business (like that of all leaves) is to catch and eat carbonic acid, which the sunlight assimilates for them. For this reason they are green above, with a transparent skin, which skin forms a water-layer for absorbing the gas and conducting it to the living green tissue beneath, where it is duly digested and assimilated. But why the cotton below? Well, the upper and under surfaces of leaves perform in nature quite different functions. The upper side, which is thick and firm, eats carbonic acid and receives the incident sunlight to digest it; but the under side, which is looser and spongier, gives off vapour of water—transpires, as we say—by innumerable little mouths, which are its outward breathing-pores. Now, these pores must not be allowed to get clogged with dew; so in wet meadows and by river-banks, where everything reeks with dew from sunset till late in the succeeding morning, almost all the plants protect the breathing-pores on their under side by such an unwettable felt of thickly matted cotton. Meadow-sweet is a familiar English example, and so is a close relation of our coltsfoot, the butterbur.