Hieracium lachenalii

Appearance

This common weed can grow and produce flowers on plants that range from 4 inches to 36 inches tall. The rhizome is short and stout. The broadly elliptic leaves can be up to 5 inches long and taper with teeth towards the base.
The flower heads have only petal-bearing ligulate florets and lack non-petal bearing tubular or disc florets ,
each petal is a complete flower in itself, not lacking stamens.
Bracts surround the flower head; the receptacle is flat and naked; heads tend to start together then become somewhat solitary on long leafless stems.
The stalks below the heads are covered with scattered, simple and gland-tipped black hairs and contain a milky substance.

The pale yellow flowers are produced during all of the summer months. The fruit are dark brown achenes.

Naming

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Distribution

Native to most of Europe, ''Hieracium lachenalii'' was introduced to Newfoundland and Quebec, to New Jersey, Minnesota, and to Australia. It can sometimes be found in soils that have been disturbed.

Habitat

Native to most of Europe, ''Hieracium lachenalii'' was introduced to Newfoundland and Quebec, to New Jersey, Minnesota, and to Australia. It can sometimes be found in soils that have been disturbed.