The perilous existence of endangered whitebeams

An interesting blog on whitebeams from our friend Tracey Hamston which mentions some of our own trees in the Watersmeet Valley

BES Forest Ecology Group

By Tracey Hamston

The beautiful oak woodlands on the coastal fringes and steep valleys of Exmoor are home to several species of whitebeam (Sorbus spp.) that are found nowhere else in the world. Exmoor is one of a number of regions in the UK that are well-known for their diversity of endemic Sorbus species. In the recently published Vascular Plant Red List for England, Sorbus as a genus makes up 6% of threatened plants. This is largely due to their small population sizes, sometimes only a handful of trees on one or two sites, which make them particularly susceptible to extinction. The main threats to this group are competition from invasive species such as rhododendron and holm oak, particularly on the coastal sites. Sorbus is also particularly palatable making them attractive to browsing animals such as deer and wild goats.

Sorbus admonitor, known as Sorbus No Parking (for the sign nailed to a tree), is found only in Devon.Sorbus admonitor, known as Sorbus No…

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One response to “The perilous existence of endangered whitebeams

  1. Tracey Hamston

    Thanks for the re-blog! I hope to visit Watersmeet again in the spring. Maybe catch the whitebeams flowering.

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