Plants

Castanea sativa loses the leaves at the unfavorable time and can reach large size. The form of the Polytechnic Institute of Castelo Branco describes narrow and yellow flowers in long and pendant ears. Later, the chestnuts are grouped within the hedgehog: the chestnut is the fruit, while the hedgehog involves the set.

Notice the layers: the brown and shiny cover belongs to the fruit; inside there is usually a seed, with a yellowish film. The tree also took place in the workshops: the source refers to wood used in carpentry, woodworking, basketry and turnery. They are general characteristics and uses, without assigning a workshop or exemplary to the municipality.

Before the hedgehog there are flowers. UTAD Digital Flora indicates May and June as the flowering season of the species. It is a general botanical reference, not a prediction for a tree of Cabeceiras: to know its rhythm, compare photographs of the same specimen on different dates. A tree without chestnuts on a spring visit does not tell the same story as an open hedgehog in autumn.

The chestnut belongs to the family Fagaceae, the same large botanical family of oaks. Compare the fruits helps to realize that kinship does not mean equal appearance: go back to the reading of the oak and look for what involves the acorn, then return to the scheme of the layers of the chestnut.

Carvalhos and chestnut trees are part of the mountain vegetation described by the municipality. The same source counts the partial replacement of this vegetation by pine-bravo. Therefore, a wooded slope also keeps planting choices and changes in land use. Looking only at the green does not arrive: it is worth noticing the species, spots and spaces between trees. This municipal description is not a current survey of each forest.

The publication Forests do Alto Minho distinguishes soutos, oriented to the production of chestnut, candlesticks, for the production of sticks. They are uses of chestnut, not two species of tree. This regional comparison helps to ask questions about the landscape of Cabeceiras; it does not identify the function of a concrete portion of the municipality.

There is still a forest below the canopy. The sub-basket gathers plants that grow under the trees; dead wood can also sustain insects that feed on it and fungi. A forest landscape is not, therefore, limited to the number of living trunks. To observe it, look for different layers — canopy, low vegetation and fallen wood — without concluding that the species cited for another region are present in that area.

The outline of the leaf has broad and unequal lobes: curves that resemble small waves. The description of the University of Évora adds a short petiole, with less than five millimeters, and secondary ribs curves that are not parallel. Instead of just looking at the silhouette, compare contour, ribs and link to the branch.

The fruits appear supported by peduncles and have a dome of brownish scales. The name used by the source is Quercus robur subsp. broteroana. These characteristics help to understand the botanical description; they do not identify the subspecies in the photographs or places of this guide.

The description presents deciduous leaves to marcescents. In the first case, they fall seasonally; in the marcescence, dried leaves may remain trapped for some time. A brown leaf in the branch is therefore not necessarily a living leaf.

The chart associates this oak to humid environments and refers to intolerance to summer drought. The leaf outline describes a structure; moisture and response to drought describe relationships with the environment. They are complementary clues to read the plant and landscape.