PBIO 004 Lecture Notes - Lecture 25: Early Summer, Herbaceous Plant, Sorus

• School: University of Vermont
• Department: Plant Biology
• Course: PBIO 004
• Professor: Mary Lauretta Tierney

Document Summary

Lecture 25, 26 & 28: roses, aquatics & ferns. One of the oldest cultivated plants in the world and it"s native to most of the world. Typical flowers have five sepals and petals, with exceptions: leaves are alternate, odd pinnate with toothed leaflets, stems are usually thorn or bristle covered. Many hybrids perform best in heat and need full sun in order to bloom: there is a variety in the cultures that the many varieties can tolerate, however, especially modern hybrids are susceptible to pests. Usually planted in beds devoted just to them, not mixed in with other perennials: they are often cut, dried and harvested. Can be rooted from cuttings, but most are grafted onto strong rootstock to shorten production time and increase vigor. The first hybrid was introduced then there are now 15 classes of old garden roses and. Modern rose classes are the most commonly found for sale.