12

Quercus Robur

  • Upload
    laasya

  • View
    54

  • Download
    4

Embed Size (px)

DESCRIPTION

Quercus Robur. Oak (Quercus robur). - PowerPoint PPT Presentation

Citation preview

Page 1: Quercus Robur
Page 2: Quercus Robur

Oak (Quercus robur)Quercus Robur is a large deciduous tree, with

circumference from 4 m to exceptional 12m. The circumference is of 12,2 m or of 10,2 m . Q. robur has lobed and nearly sessile (very short-stalked) leaves 7–14 cm long. Flowering takes place in mid-spring, and their fruit, called acorns, ripen by the following autumn. The acorns are 2–2.5 cm long, pedunculate (having a peduncle or acorn-stalk, 3–7 cm long) with one to four acorns on each peduncle.

Page 3: Quercus Robur

Green down

Page 4: Quercus Robur
Page 5: Quercus Robur
Page 6: Quercus Robur
Page 7: Quercus Robur
Page 8: Quercus Robur
Page 9: Quercus Robur
Page 10: Quercus Robur
Page 11: Quercus Robur
Page 12: Quercus Robur