Hemp (Cannabis) Sativa

Hemp is an annual herbaceous plant, Cannabis sativa, a native of central and western Asia, but readily grown in this country. It was cultivated for its valuable fibre and for its narcotic properties. It is a dioecious plant of which the female is more robust and longer lived than the male, for which reason the sexes were popularly reversed, and the female called carl hemp, STEEL HEMP or winter hemp, and the male, barren hemp, FIMBLE or summer hemp, so-called because it was harvested in the summer whereas the true female hemp was left to grow on till autumn to set HEMPSEED. To add to the confusion, as late as the middle of the nineteenth century Tomlinson defined fimble as the one that had flowers and carl as the one with fruits, as if the fruits could somehow develop on a plant that had not previously flowered, even if inconspicuously.

Source ="British-history-Online"

I feel it does not do justice to call it hemp, it in some ways imply s that hemp and cannabis are not the same thing.