Клён круглолистный: описание и распространение.

Species of maple

Acer circinatum, or vine maple, is a species of maple native to northwestern North America. Vine maple typically grows as a low elevation costal tree in temperate areas of high precipitation such as the west coast of Oregon and northern California, as well as the rain forests of Washington State and British Columbia. Vine maples play an important role in conserving the biodiversity of lowland ecosystems by enriching upper soil layers and providing habitat for other organisms.

Acer circinatum grows as a many stemmed shrub like tree. It most commonly reaches a height between 5 and 8 meters (16–26 feet), but can occasionally reach 18 meters (59 feet). It commonly grows as a spray of slender stems from 3–10 cm (1–4 in), but in more tree like specimens the trunk can reach 25 cm (10 in). Vine maple leaves are coarsely toothed and 3 to 14 cm (1 1/4 to 5 1/2 in) in length. They are palmately lobed with 7–11 lobes, the lobe points forming a nearly circular pattern. In the autumn, the leaves turn bright yellow to orange red. Vine maples produce single flowers (a single flower is a flower that produces one fruit) that are 6–9 mm (1/4 3/8 in) in diameter, with dark red sepals and 5 yellow petals. The fruit, a two seeded winged samara, is adapted for wind dispersal. Each wing is 2–4 cm in length, and holds a seed approximately 9 mm (3/8 in) in diameter. This cloning characteristic, known as layering, allows vine maple stands to grow quickly, and makes vine maple a good contender for secondary succession after a woodland overstorey (canopy) disturbance. and Acer pseudosieboldianum (Korean maple).

Acer circinatum can be found from southwest British Columbia to northern California, usually within 300 km (186 mi) of the Pacific Ocean, specifically along the Columbia Gorge and throughout coastal forests.

Various birds, such as nuthatches, chickadees, grosbeaks, warblers, waxwings, vireos, and woodpeckers eat the seeds of this species, Despite its isolation from many of the Asian species with which it shares a common ancestor, Acer circinatum has not diverged significantly from its Asian relatives in either appearance or genetics. and Ottawa, Ontario, to Huntsville, Alabama, and also in northwestern Europe.

The Quinault people used the shoots to weave baskets.