![]() Petals lacking, ovary and base of fruit pubescent.įruit: a pair of winged samaras, 4–8 cm long, reddish-tinged, with an acute angle between the divergent wings. Leaves are 6–10 cm long green above, silvery-white beneath, glabrous.įlowers: greenish-yellow to red, arranged in dense clusters, openning before the leaves. Leaf blade deeply cut into 5 palmate lobes, sinuses are deep and acute the lobes narrow, with acuminate apices, margins coarsely toothed. Leaves: opposite, simple, palmately-veined, petiolate. Buds are dark red with 4 bud scales, similar in appearance to those of red maple. Bark grayish, furrowed young twigs chestnut-brown to red, glabrous, with an unpleasant odour when crushed. General: a tree, to 30 m tall, with slender, often pendulous branches. Some maple species are bisexual, others have both male and female parts in the same flower, but in these, only one sex is functional. The small bisexual or unisexual flowers have 5 sepals, 5 petals, 10 stamens and/or a 2-carpelled ovary surrounded at the base by a nectar-producing disk the ovary develops into a pair of indehiscent, winged samaras, commonly called maple "keys", which are wind-dispersed. Most have buds with overlapping (imbricate) bud scales and narrow V- or U-shaped leaf scars with 3 bundle scars. Most maples have simple, palmately-lobed leaves, with the exception of Acer negundo (Manitoba maple or box elder), which has pinnnately compound leaves. ![]() The Genus Acer: Maples are tall shrubs or trees with opposite, deciduous leaves. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |