Thursday, February 5, 2015

Hieracium umbellatum

Hieracium umbellatum 
Narrow Hawkweed
Épervière de Savoie

Native to Europe and Asia. 
The name is derived from the Greek 'hierakion' and the ancient Greek word 'hierax' for hawk. 'Umbellatum' means like umbels or umbrella-like flower heads. The Roman naturalist, Pliny, believed that hawks fed on this plant to strengthen their eyesight, thus the common name, hawkweed.
Hawkweeds are a large group with 10,000 recorded species and subspecies.
H. umbellatum have yellow ray flowers in long-stalked, loose branched clusters from July to Sept. or Oct. The stems are very leafy with fairly narrow leaves and are covered with fine, stiff hairs. 
The leaves are lanceolate-linear with a tapering tip and base, bristle hairs on the underside, and an entire or sparsely toothed margin.


Bloom










Budding
Form in bloom

In situ in fall, Lacoste, 9.16.14
In Situ, seed heads, 9.16.14

Leaves, 9.16.14
Illustration, Dr. Otto Wilhelm. 1885