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In years that oaks produced many acorns, Native Americans sometimes collected enough acorns to store for two years as insurance against poor acorn production years. After drying in the sun to discourage mould and germination, acorns could be cached in hollow trees or structures on poles to keep them safe from mice and squirrels. Stored acorns ...
The leaves are a distinct deep purple-crimson on new growth, soon turning glossy green above, glaucous blue-green below, 60–13 mm long and 20–50 mm broad, with a serrated margin. The flowers are catkins , and the fruit are acorns 1–1.6 cm long, with series of concentric rings on the outside of the acorn cup (it is in the " ring-cupped oak ...
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.
Acorns were actually farmed very early in human history, but to make them edible you have to soak them and treat them. Sure, you see animals eat them all the time, but animals also eat tree bark ...
This tree has a coarse texture and leaves that are dark that attract attention as a specimen plant. [25] This tree is not a good fit for small areas and needs to be put in a large open area in order to form due to its size. Aesculus flava tends to produce large amounts of leaf and flower litter in the summer and fall. The fruit makes good food ...
The fruit is an acorn, maturing about 18 months after pollination, 2–3 cm (3 ⁄ 4 – 1 + 1 ⁄ 4 in) long and 2 cm broad, bi-coloured with an orange basal half grading to a green-brown tip; the acorn cap is 1.5–2 cm (5 ⁄ 8 – 3 ⁄ 4 in) deep, densely covered in soft 4–8 millimetres (3 ⁄ 16 – 5 ⁄ 16 in) long 'mossy' bristles.
The acorns and leaves contain tannic acid, [5] which helps to guard against fungi and insects. [6] There are some 500 extant species of oaks. [7] Trees in the genus are often large and slow-growing; Q. alba can reach an age of 600 years, a diameter of 13 feet (4.0 m) and a height of 145 feet (44 m). [8]
The leaves turn red in autumn. The fruit is an acorn2.5–3.5 cm (1– 1 + 1 ⁄ 2 in) long and 2–2.5 cm (3 ⁄ 4 –1 in) broad, borne on a 2–3 cm peduncle, maturing in the fall, about 6 months after pollination. [4] The tree only bears heavy acorn crops at intervals of several years. [5]