### plant | tracheophyte | tree | redbud:

Eastern redbud
* is moderately tolerant of shade and grows well in full sun
  - the state tree of Oklahoma
* native, deciduous, small tree or shrub.

### plant | tracheophyte | tree:

Redwood tree
* Most redwood trees sprout from roots.
* Some redwood trees produce acid
  - reach feet.
  * can grow to be very large. The largest species, 'Sequoiadendron giganteum,' can reach up to 94.8 m tall and 17 m across. The tallest tree in the world 'Sequoia sempervirens' named Hyperion. The largest tree in the world by volume 'Sequoiadendron giganteum' named the General Sherman Tree, after William Tecumseh Sherman
  - get big
* grow in circles, usually around an older mother tree.
* grow to an incredible height and live for centuries
  - unbelievable size
* live for thousands of years.
* produce acids in their needles and in their bark.

Resistant tree
* Most resistant trees have bark
  - smooth bark
* Some resistant trees grow on mountainsides.
* exhibit a classic hypersensitivity response.

Riparian tree
* are drip irrigated because the shallow ground water is too salty.
* reach maturity quickly because they're able to grow over such long periods each year.
* slow to reestablish along channel bottom.

Rowan
* Most rowans grow into mature trees
* are mountain ash.
* have trunks.
* includes bark
  - cell membranes
  - cells
  - corpi
  - cytoplasm
  - leaf nodes
  - nuclei
  - plasma membranes
  - sections
  - stumps
  - tree branches
  - treetops
  - vacuoles
  - xylem
* is mountain ash
* live well in poor soil and colonize easily in disturbed areas.
* thrive in poor soils and colonize disturbed areas.

Sapling
* Some saplings wither and die under the canopy of large established trees.
* are inexpensive and they grow fast
  - young trees
* flourish in damp, well-lit areas.
* grow up, start to lean over the creek, fall in, and get washed away.

### plant | tracheophyte | tree:

Shade tree
* Most shade trees fall into the canopy category and require full sun to do well
  - grow to feet
  - provide protection
* are an excellent way to protect the home from the direct sun
  - as important to most people as traffic lights, garbage trucks, and storm sewers
  - located in parks
  - open grown
* can be deciduous
  - difficult to cut down
  - provide fruit and wood for fuel, helping farmers to diversify
* cool the streets in the summer and at the same time reduce the dust in the air.
* grow larger every year and can slowly shade a once sunny garden spot
* have a natural cooling effect because they transpire water through their leaves
  - requirements
* have specific requirements
  - site requirements
* help cool homes in summer
  - cut the costs of air conditioning
  - maintain soil quality
* make our environment healthier and add beauty to communities.
  - shade in summer
* reduce summer heat, making outdoor living more pleasant.
* save electricity.
* vary from cypress to cedar, with various oaks, black walnuts, sycamore, and pecans.

Silk tree
* grow rapidly under good conditions but are short-lived and have weak, brittle wood.
* is naturalized from New Jersey to Louisiana and in California.
* reproduces both vegetatively and by seed.