When it comes to identifying Tilia platyphyllos, commonly known as large-leaved lime, there are a few key characteristics to look out for. One of the most distinguishing features is the presence of hairs on the underside of the leaf. Unlike the other lime species, Tilia platyphyllos has hairs covering the entire underside of the leaf, rather than just specific areas.
To start the identification process, it can be helpful to examine the leaves of the tree. Large-leaved lime typically has heart-shaped leaves with a slightly asymmetrical base. The leaves are relatively large, measuring around 6-12 cm in length. The upper surface of the leaf is smooth and shiny, while the underside is covered in fine hairs.
Moving on to the twigs, another characteristic that can aid in identifying Tilia platyphyllos is the presence of hairs. Unlike common lime (Tilia x europaea), which has tufts of white hairs at the end of twigs, large-leaved lime does not exhibit this feature. Instead, the hairs are more evenly distributed along the twigs and are not concentrated at the tips.
When observing the overall shape and size of the tree, large-leaved lime tends to have a pyramidal or conical crown, with branches that spread out in a relatively uniform manner. The bark of the tree is smooth and greyish-brown, developing shallow fissures and ridges with age.
In terms of reproductive structures, large-leaved lime produces fragrant, pale yellow flowers that are arranged in clusters known as cymes. These flowers typically appear in late spring or early summer and attract various pollinators, such as bees and butterflies. After pollination, small round fruits known as nutlets are formed, each containing a single seed.
It is important to note that while these characteristics generally hold true for Tilia platyphyllos, there can be some natural variation within the species. Additionally, it is always beneficial to consult field guides or seek expert advice when in doubt.
To summarize the key identifying features of Tilia platyphyllos:
– Underside of leaves covered in fine hairs
– Heart-shaped leaves with slightly asymmetrical base
– Smooth and shiny upper leaf surface
– Hairs evenly distributed on twigs, not concentrated at tips
– Pyramidal or conical crown shape
– Smooth greyish-brown bark with shallow fissures
– Fragrant pale yellow flowers arranged in cymes
– Small round nutlets formed after pollination
I hope this detailed information helps you in identifying Tilia platyphyllos. If you have any further questions or need additional assistance, feel free to ask!
