Winter Quarter Week 10 Plant Family: Salicaceae

The Salicaceae, the willow family, has the following charateristics:

  1. Diversity: Contains around 56 genera and over 1,000 species.
  2. Habitat: Found in temperate and subtropical regions around the world, often near water bodies such as rivers, lakes, and streams.
  3. Deciduous Trees and Shrubs: Most species are deciduous, shedding their leaves seasonally. They can range from small shrubs to large trees.
  4. Simple Leaves: Often alternate.
  5. Catkins: Produce clusters of flowers called catkins, which often appear before or with the leaves in spring.
  6. Dioecious or Monoecious: Salicaceae species can be either dioecious, meaning male and female flowers are borne on separate plants, or monoecious, meaning both male and female flowers are found on the same plant.
  7. Wind-Pollinated: Flowers are typically wind-pollinated, lacking showy petals or attractive scent.
  8. Cultural Importance: Often cultivated for erosion control and for their flexible branches used in basket weaving. Also cultivated for timber production, papermaking, and as ornamental trees.
  9. Adaptations to Moist Environments: Many species have adaptations to moist environments, such as the ability to tolerate waterlogged soil or even grow in aquatic habitats.
  10. Chemical Properties: Some species contain salicylates, compounds related to aspirin, which can have medicinal properties.

Jepson key to Salicaceae

Video describing identification of willows