golden lungwort
(Hieracium murorum)
This species is Introduced in the United States
Native-Look-Alikes
Native Hieracium species, woolly hawkweed (H. triste) and slender hawkweed (H. gracile), have dense, dark-colored glandular hairs surrounding the flower head. H. murorum has glandular hairs but not as conspicuous. Native Hieracium have shallower, less frequently toothed or untoothed basal leaves and reduced stem leaves. These native species and H. murorum are without stolons, unlike H. caespitosum.
Description
Perennial herb with fibrous root system and stolons that grows to 2 feet tall; leaves primarily basal, few alternate along stem, length from 2-4 inches and 1.5-3 times the width, shaped broadly elliptical, heart-shaped (cordate) or somewhat flattened (truncate) at the base, and leaf margins with widely-spaced teeth; Inflorescence with 1 to several headed branches of yellow, composite flowers.
Ecosystem Impacts
Not observed in undisturbed areas in Alaska. Unlikely to develop dense stands capable of influencing plant or animal community composition or structure.
Distribution/Abundance
Establishes on roadsides and other disturbed areas. Major populations observed in Southeast islands (Wrangell, Zarembo, and Etolin). Currently known in Alaska in Southeast. In Canada in British Columbia, and Ontario to Nova Scotia. Native to northern Europe and Russia.
Management
Carefully selected herbicide treatments have proven successful on other non-native Hieracium species. If populations of H. murorum require management, chemical control is likely effective. Hand-pulling may also be effective for small populations.
Native Hieracium species, woolly hawkweed (H. triste) and slender hawkweed (H. gracile), have dense, dark-colored glandular hairs surrounding the flower head. H. murorum has glandular hairs but not as conspicuous. Native Hieracium have shallower, less frequently toothed or untoothed basal leaves and reduced stem leaves. These native species and H. murorum are without stolons, unlike H. caespitosum.
Description
Perennial herb with fibrous root system and stolons that grows to 2 feet tall; leaves primarily basal, few alternate along stem, length from 2-4 inches and 1.5-3 times the width, shaped broadly elliptical, heart-shaped (cordate) or somewhat flattened (truncate) at the base, and leaf margins with widely-spaced teeth; Inflorescence with 1 to several headed branches of yellow, composite flowers.
Ecosystem Impacts
Not observed in undisturbed areas in Alaska. Unlikely to develop dense stands capable of influencing plant or animal community composition or structure.
Distribution/Abundance
Establishes on roadsides and other disturbed areas. Major populations observed in Southeast islands (Wrangell, Zarembo, and Etolin). Currently known in Alaska in Southeast. In Canada in British Columbia, and Ontario to Nova Scotia. Native to northern Europe and Russia.
Management
Carefully selected herbicide treatments have proven successful on other non-native Hieracium species. If populations of H. murorum require management, chemical control is likely effective. Hand-pulling may also be effective for small populations.
Maps
EDDMapS Distribution - This map is incomplete and is based only on current site and county level reports made by experts, herbaria, and literature. For more information, visit www.eddmaps.org
State Lists - This map identifies those states that have this species on their invasive species list or law.
Taxonomic Rank
| Domain: Eukarya |
| Kingdom: Plantae |
| Phylum: Magnoliophyta |
| Class: Magnoliopsida |
| Superorder: Asteranae |
| Order: Asterales |
| Family: Asteraceae |
| Subfamily: Cichorioideae |
| Tribe: Cichorieae |
| Genus: Hieracium |
| Hieracium murorum |
References
Common Name Reference: Weed Science Society of America Common Names List
Scientific Name Reference: USDA, NRCS. 2010. The PLANTS Database. National Plant Data Center, Baton Rouge, LA, USA.