Bentley Priory Nature Trail
Post 24: You are now back in Old Lodge Meadow. The herd of cows that graze Bentley Priory in the summer and autumn are often found here. Since cows graze unevenly, taking some clumps down to the ground and leaving others standing tall, the complexity of the grassland structure is increased resulting in improved biodiversity.

In April, May and June look for the violet-pink blooms of cuckoo flower Cardamine pratensis. Like all crucifers, the four flower petals are arranged in a simple symmetric cross. At the same time of year look for the orange-tip butterfly, whose caterpillars feed on cuckoo-flower. Males are unmistakable, with orange tips to their forewings, while females are all white.

Later in the year look for the purple flowers of common knapweed Centaurea nigra. Knapweed flowers are typical thistle-shaped, but unlike thistles the plant itself is not prickly - see illustration below.


Image: Knapweed by Rosemary Etheridge

To description for post 25

Click here to learn more about the Harrow Nature Conservation Forum including guided walks and conservation workdays.