Translations:Manfred Klett: Von der Agrartechnologie zur Landbaukunst/1574/en

The sterile shoot of the horsetail, striving upward into air, warmth, and light, is stem through and through. True foliage leaves are absent; only rudimentary leaf formations in the shape of inconspicuous collar-like protective sheaths, united into whorls, lie against the base of the stem nodes. The ribbed internodes of the central shoot and the rich branching into whorled lateral branches present, with respect to the absorption

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