There are lots of succulents that have distinctive spike type growth. The leaves can be arranged in a rosette form, or in a spiral, but the leaves are always similar to grass in the way they grow, and their shape. Here are some that fit this description;
Here are some of the most asked about succulents, or plants that are similar to succulents so you can eliminate them.
Each picture will lead you to more information about the different kinds (or genera) of plants.
Not all plants in any genus are identical - some types of plants show an incredible range of shapes and sizes, which leads you to ask; how on earth does anyone decide to lump these plants all together?
The answer to that is, it's all in the flower.
Even though the plants themselves look different, there are certain characteristics that they all share, but only in the number of petals, the formation of the bloom, and many microscopic details.
Many of these types of plants are closely related, such as Aloe and Gasteria.
Some are so closely related that they can interbreed and form a hybrid plant, in this case, x Gasteraloe, which has many interesting forms and takes the best characteristics of each parent to make a great new plant.