. Handbook of nature-study for teachers and parents, based on the Cornell nature-study leaflets. Nature study. Wild-Flower Study 563. standpoint, is the Canada thistle. garden, grain field and meadow. THE THISTLE Teacher's Story N looking at the thistle from its own standpoint, we must acknowledge it to be a beautiful and wonderful plant. It is like a knight of old encased in armor and with lance set, ready for the fray. The most impressive species is the great pasture, or bull, thistle (C. pumilis), which has a blossom-head three inches across. This is not so common as the lance-leaved thistl
. Handbook of nature-study for teachers and parents, based on the Cornell nature-study leaflets. Nature study. Wild-Flower Study 563. standpoint, is the Canada thistle. garden, grain field and meadow. THE THISTLE Teacher's Story N looking at the thistle from its own standpoint, we must acknowledge it to be a beautiful and wonderful plant. It is like a knight of old encased in armor and with lance set, ready for the fray. The most impressive species is the great pasture, or bull, thistle (C. pumilis), which has a blossom-head three inches across. This is not so common as the lance-leaved thistle, which ornaments roadsides and fence corners, where it may remain undisturbed for the neces- sary second year of growth before it can mature its seeds. The most per- nicious species, from the farmer's Its roots are perennial, and they invade They creep for yards in all directions, just deep enough to be sure of moisture, and send up new plants here and there, especially if the main stalk is cut off. Roots severed by the plow, send up shoots from both of the broken parts. Not so with the common thistle, which has a single main root, with many fibrous and clustered branches but with no side shoots. The stalk of the lance-leaved thistle is strong and woody, and is closely hugged by pricky leaf stems, except for a few inches above the root. The leaves are placed alternately â on the stalk; they are deep green, covered above with rough and bristling hairs, and when young are covered on the under side with soft, gray wool which falls away later. The spines grow on the edges of the leaves, which are deeply lobed and are also somewhat wavy and ruffled, thus causing the savage spears to meet the enemy in any direction. The ribs and veins are without spines. Small buds or branches may be found at the axils of the leaves; and if a plant is beheaded, those axillary buds near- est the top of ]the stem will grow vigorously. The thistle flowers are purple in color and very fragrant; they g
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