Another feature of the chalk-pit is the viper's bugloss. If, as Thoreau says, there is a flower for every mood of the mind, the viper's bugloss must surely belong to that mood which is associated with the pomps and splendours of the high summer noontide. Gorgeous and tropical in its colouring beyond all other British flowers, as it rears its bristly green spikes, studded profusely with the pink buds that are turning to an equally vivid blue, it seems instinct with the spirit of a fiery summer day. Like other members of the Borage group, it has the warm southern temperament; its name, too, suits it well; for there is something viperish in the almost fierce beauty of the plant, as if some passionate-hearted exotic had sprung up among the more staid and sober representatives of our native flora. Its richness never palls on us; we no more tire of its brilliance than of the summer itself.
Akin to the bugloss, though less striking and less abundant, is the hound's-tongue, with its long downy leaves and numerous purple-red buds of a sombre and sullen hue that is not often to be matched. It has the misfortune, so we are told, to smell of mice; were it not for this hindrance to its career, it might justly be held in high esteem. Among the larger plants prominent on ledges of the chalk, or in near neighbourhood, are the mullein, the teazle, the ploughman's-spikenard, and the deadly nightshade or dwale. The buckthorn is frequent in the hedges and thickets; and the traveller's-joy is climbing wherever it can get a hold.
But it is on the shelving banks that skirt the margin of the pit that the comeliest flowers are to be found; the most beautiful of all, perhaps, is the rock-rose, a plant so delicate that its small golden petals will scarcely survive a journey in the vasculum, yet so hardy that it will flower to the very latest autumn days. The wild strawberry is creeping everywhere; and the crimson of the grass vetchling may occasionally be seen among the ranker herbage, to which the stalk seems to belong; on the shorter turf is the small squinancy-wort, lovely cousin of the woodruff, its pink and white petals chiselled like the finest ivory.
The elegant yellow-wort, glaucous and perfoliate, and the handsome pink centaury, are common on the Downs; so, too, in the late summer, will be their less showy but always welcome relative, the autumnal gentian: all three have the firm and erect habit that is a property of the Gentian tribe. It is one of the many merits of these chalk hills that their flower-season is a prolonged one. Not the gentians only, with yellow-wort and centaury, are still vigorous in the autumn, but also the blue fleabane, clustered bell-flower, vervain, marjoram, basil, and many labiate herbs. Even in October, when the glory has long departed from the lowlands of the weald, there remains a brave show of blossom on these delectable hills.