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  2. Knobcone pine - Wikipedia

    en.wikipedia.org/wiki/Knobcone_pine

    The knobcone pine, Pinus attenuata (also called Pinus tuberculata), [2] is a tree that grows in mild climates on poor soils. It ranges from the mountains of southern Oregon to Baja California with the greatest concentration in northern California and the Oregon-California border.

  3. California interior chaparral and woodlands - Wikipedia

    en.wikipedia.org/wiki/California_interior...

    The trees of Closed-cone pine forest burned in every 25–50 years, and a few species including the knobcone pine (Pinus attenuata) are adapted to open the cones and release seeds for new growth following the heat of forest fires. However, as fire regulation and suppression becomes more effective these communities cannot renew themselves.

  4. List of pines by region - Wikipedia

    en.wikipedia.org/wiki/List_of_pines_by_region

    Mature Pinus pinea (stone pine); note umbrella-shaped canopy: Pollen cones of Pinus pinea (stone pine) A red pine (Pinus resinosa) with exposed roots: Young spring growth ("candles") on a loblolly pine: Monterey pine bark: Monterey pine cone on forest floor: Whitebark pine in the Sierra Nevada: Hartweg's pine forest in Mexico

  5. How collecting pine cones helps renew Oregon forests after ...

    www.aol.com/pine-cones-collection-helps-renew...

    Once the pine cones are collected, they're brought to a network of nurseries, where the seeds are extracted and grown into seedlings. One million seedlings will plant about 4,500 acres of new forest.

  6. Theodore Lukens - Wikipedia

    en.wikipedia.org/wiki/Theodore_Lukens

    Among the different species of trees Lukens studied, the knobcone pine was the best choice he believed, for its fire-resistant properties. The cones, which are embedded in the tree, only open and release seeds after a wildfire. He learned how to open the cones by boiling them and the method of watering and care that produced seedlings.

  7. List of Pinus species - Wikipedia

    en.wikipedia.org/wiki/List_of_Pinus_species

    In general, this classification emphasized cone, cone scale, seed, and leaf fascicle and sheath morphology, and species in each subsection were usually recognizable by their general appearance. Pines with one fibrovascular bundle per leaf, (the former subgenera Strobus and Ducampopinus ) were known as haploxylon pines , while pines with two ...

  8. Closed-cone conifer forest - Wikipedia

    en.wikipedia.org/wiki/Closed-cone_conifer_forest

    The most widespread naturally of the closed-cone pines is bishop pine (Pinus muricata), which can be found along the coast from Humboldt County, California in the north to the northwestern corner of Baja California in the south. Knobcone pine (Pinus attenuata) forests can occur further inland, on dry, rocky soils.

  9. Diablo Range - Wikipedia

    en.wikipedia.org/wiki/Diablo_Range

    It is covered mostly by chaparral and California oak woodland communities, with stands of closed-cone pine forests appearing above 4,000 feet (1,219 m). The native bunch grass savanna has been predominantly replaced by annual Mediterranean grasses, except in some rare habitat fragments. The understory is dominated with nonnative invasives.