A leaf with a wavy outline
About this photograph
Date given at source: . Source consulted in 2026-11-07. EXIF orientation, proportional resizing and WebP conversion; no retouching or clipping of the file.
Look at the leaf’s outline and stalk on a pedunculate oak.
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The leaf’s outline has broad, uneven lobes: curves resembling small waves. The University of Évora description adds a short leaf stalk, less than five millimetres long, and curved secondary veins that are not parallel. Rather than looking only at the silhouette, compare the outline, veins and attachment to the branch.
The fruits are carried on stalks and have a cup of brownish scales. The source uses the name Quercus robur subsp. broteroana. These features help explain the botanical description; they do not identify the subspecies in this guide’s photographs or places.
The description presents leaves as deciduous to marcescent. Deciduous leaves fall seasonally; marcescent leaves can remain attached for a while after drying out. A brown leaf on a branch is therefore not necessarily alive.
The profile associates this oak with moist environments and mentions intolerance of summer drought. A leaf’s outline describes a structure; humidity and the response to drought describe relationships with the environment. They are complementary clues for reading a plant and its landscape.
The acorn between the tree and the story
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The cork oak also gives acorns
Cork begins in the tree →Distinguish hedgehog, chestnut and seed
What is hidden in the hedgehog? →Oak cakes in a memory of 1758
In the same parish, the harvest changed →
Source and context
University of Évora — Quercus robur subsp. broteroana, description by Carlos Vila-Viçosa
Accessed: . Editorial summary; the date of consultation is not the date of the facts.