Conium maculatum known by the common name hemlock, even though the two plants are quite different. Similarly, the plant should not be confused with "Cicuta" (commonly known as water hemlock). The dried stems are sometimes called kecksies or kex. "Conium" comes from the Ancient Greek "κώνειον - kṓneion" : "hemlock". This may be related to "konas" (meaning to whirl), in reference to vertigo, one of the symptoms of ingesting the plant. "Conium maculatum" is an herbaceous biennial flowering plant that grows to tall, with a smooth, green, hollow stem, usually spotted or streaked with red or purple on the lower half of
What Is and What Should Never Be descending riff [of "What Is and What Should Never Be"] is amazing: It's like a bow is being drawn back, and then it releases. The rhythm of the vocals is almost like a rap. It's insane — one of their most psychedelic songs." This was also one of the first songs recorded by the band for which Robert Plant received writing credit. According to rock journalist Stephen Davis, the author of the Led Zeppelin biography "Hammer of the Gods: The Led Zeppelin Saga", the lyrics for this song reflect a romance Plant had with his wife's younger sister. "What Is