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  2. Cupressus sempervirens - Wikipedia

    en.wikipedia.org/wiki/Cupressus_sempervirens

    The male cones are 3–5 mm long and release highly allergenic pollen in late winter. The cones of C. sempervirens can withstand years of being sealed and are known to perform serotiny. [8] The tree is moderately susceptible to cypress canker, caused by the fungus Seiridium cardinale, and can suffer extensive dieback where

  3. Hesperocyparis stephensonii - Wikipedia

    en.wikipedia.org/wiki/Hesperocyparis_stephensonii

    Trees were reported growing as low as 3,000 feet (910 m) in elevation in 1998, but the presence of these individuals today has not been verified. [5] Most individual trees occur at 4,500–5,100 feet (1,400–1,600 m) within the Pacific Southwest Research Station's King Creek Research Natural Area, in the Cleveland National Forest .

  4. Hesperocyparis macrocarpa - Wikipedia

    en.wikipedia.org/wiki/Hesperocyparis_macrocarpa

    The pollen cones are 3–5 mm long, and release their pollen in late winter or early spring. [8] [9] [10] The Latin specific epithet macrocarpa means "with large fruit". [11] Because of the large trunk size some trees develop, people have assumed that individual H. macrocarpa trees may be up to 2,000 years old.

  5. Hesperocyparis goveniana - Wikipedia

    en.wikipedia.org/wiki/Hesperocyparis_goveniana

    The cones remain closed for many years, only opening after the parent tree is killed in a wildfire, thereby allowing the seeds to colonize the bare ground exposed by the fire. The male cones are 3–5 mm (0.12–0.20 in) long, and release pollen in February/March. Typically cones of H. goveniana are smaller than those of H. macrocarpa.

  6. Hesperocyparis guadalupensis - Wikipedia

    en.wikipedia.org/wiki/Hesperocyparis_guadalupensis

    Inside the cone are approximately 70 to 100 seeds, brown with a light waxy coating described by botanists as glaucous. [3] [10] The seeds are much larger than those of other western cypress trees, weighing two to seven times as much. [4] Closed, but already ripe, cones still on the trees will also open after being exposed to the heat of a fire ...

  7. Leyland cypress - Wikipedia

    en.wikipedia.org/wiki/Leyland_cypress

    The tree bark is dark red or brown and has deep grooves. The seeds are found in cones about 2 cm in length, with eight scales and five seeds with tiny resinous vesicles. With the tree being a hybrid, its seeds are sterile. Over time, the cones shrink dry and turn gray or chocolate brown and then have a diameter of 1 cm. [12]

  8. Cupressus - Wikipedia

    en.wikipedia.org/wiki/Cupressus

    The fast-growing hybrid Leyland cypress (Cupressus × leylandii), much used in gardens, draws one of its parents from this genus (Cupressus macrocarpa, Monterey cypress); the other parent, Callitropsis nootkatensis (Nootka cypress), is also sometimes classified in this genus, or else in the separate genus Xanthocyparis, but in the past more ...

  9. Cupressus funebris - Wikipedia

    en.wikipedia.org/wiki/Cupressus_funebris

    The leaves are scale-like, 1–2 mm long, up to 5 mm long on strong lead shoots; young trees up to about 5–10 years old have juvenile foliage with soft needle-like leaves 3–8 mm long. The seed cones are globose, 8–15 mm long, with 6–10 scales (usually 8), green, maturing dark brown about 24 months after pollination.

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