Karteikarten
True Firs (Abies)
Karten in diesem Stapel (18)
- 1Describe the location and quality of the conesErect cones perch on the topmost branches like small owls. The scales fall off cones when the seeds ripen.
- 2Describe the leaves of AbiesLeaves of most species are about 1" long and are highly aromatic. Most are blunt to the touch. All have white bands on the underside but some have green on top while other are blue-green to white. Their needle like leaves are attached singly to the branches with a base resembling a suction cup.
- 3What appearance do young stems have?Young stems have fragrant resin blisters; buds are most commonly rounded and are often covered with wax, resin, or curved needles.
- 4What are not true firs?Douglas firs and chinese firs
- 5Describe the twigs of AbiesTwigs without needles have tiny flat circular leaf scars
- 6What are true firs also called?Balsam firs, because of tiny pockets of resin, or balsam, that occur in their bark.
- 7Why are true firs well adapted to snowy environments?Short, stiff branches and pointed tops shed snow without breaking.
- 8Describe how the cones look on fir treesCones perch on topmost branches, so look aloft for large erect cones. The often glisten with drops of fragrant sticky resin.
- 9How many species of Abies does Oregon have?6, more than any other state
- 10Name the 6 species of Abies native to Oregon?1. Grand Fir
2. Pacific Silver Fir
3. Noble Fir
4. California red Fir
5. Subalpine Fir
6. White Fir - 11What genus are firs most related to?Cedrus
- 12What family is the Abies genus a part of?Pinacaeae
- 13How many species of true firs grow in the northern hemisphere?40 species
- 14How do cones fall?Unlike other conifer cones, they do not fall intact. Their scales tumble off one by one when the seeds have ripened. As a result, cones can only be used to recognize true firs in summer and early fall.
- 15What is an easy way to identify a fir?gently pull a needle away from its twif and notice the tiny, circular scar left on the twig. This circle makes it easy to recognize an abies at any season.
- 16What are some qualities of young stems?they have fragrant resin blisters. Stick them with your finger and they pop, oozing a clear liquid.
- 17How is resin and oils from the bark and foliage of abies used?Used in a variety of products - perfumes, adhesives, and pharmaceutical uses. Also used in some traditional healing practices.
- 18What do the buds of true firs look like?buds are rounded and are often covered with resin, wax, or curved needles. buds near the ends of twigs often occur in clusters of three or more.