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The acorns ripen in autumn, about six months after pollination. [9] It is a resilient tree that can survive temperatures below −20 °C (−4 °F), and that on occasion reach 47 °C (117 °F). [5] As opposed to Quercus ilex, its acorns have a very low level of bitterness tannins and so are generally sweet and a good energy source for livestock ...
The mildly sweet (but perhaps unpalatable) acorns are edible, ideally after leaching. [6] [29] The bitterness of the toxic tannic acid would likely prevent anyone from eating enough to become ill. [29] Native Americans ate the acorns raw and roasted, also using them to make a kind of flour. [5] The hardwood is hard and heavily ring-porous.
[1] [2] Acorns are 1–6 cm (1 ⁄ 2 – 2 + 1 ⁄ 2 in) long and 0.8–4 cm (3 ⁄ 8 – 1 + 5 ⁄ 8 in) on the fat side. Acorns take between 5 and 24 months (depending on the species) to mature; see the list of Quercus species for details of oak classification, in which acorn morphology and phenology are important factors.
The fruit is a slender reddish brown acorn 2–3.5 cm (3 ⁄ 4 – 1 + 1 ⁄ 2 in) long and 1–1.5 cm (3 ⁄ 8 – 5 ⁄ 8 in) broad, with the basal quarter enclosed in a cupule; unusually for a red oak, the acorns mature about 7–8 months after pollination (most red oak acorns take 18 months to mature). [8] Q. agrifolia acorns and leaves
The sun rises now at 6:40 a.m. and sets about 7:30 p.m., giving us shorter daylight, and soon, we will experience the autumnal equinox: daylight and darkness equal. The days, weeks and months ...
[64] [65] An exception is the domestic pig, which, under the right conditions, may be fed entirely on acorns, [66] and has traditionally been pastured in oak woodlands (such as the Spanish dehesa [67] and the English system of pannage). [68] Humans can eat acorns after leaching out the tannins in water. [69]
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Leaves (when young, in April), edible raw as a salad vegetable . Berries (in autumn), edible raw, or made into jellies, jams and syrups, or used as a flavoring [6] Beech: Fagus sylvatica: Europe, except parts of Spain, northern England, northern parts of Northern Europe: Nuts (in September or October), edible raw or roasted and salted, or can ...