👉 The term "chondrostean" refers to a group of plant species that are characterized by their distinctive tracheids, which are small, curved structures that extend from the roots of their stems. These tracheids help the plants to facilitate water and nutrient transport in the soil, which is essential for their survival. Chondrostean plants have also been known to produce seeds with a hard outer shell called an embryo, which may contain the seeds themselves or other reproductive organs. The chond