flat goldentop
Euthamia graminifolia · Accepted scientific name
Scientific literature: Very Sparse (10 studies) · ★☆☆☆☆
Flat goldentop, scientifically known as Euthamia graminifolia, is a resilient perennial wildflower native to North America. Renowned for its vibrant, daisy-like yellow blooms, this plant thrives in moist soils and meadows. Beyond its aesthetic beauty, it serves as a vital nectar source for pollinators, enriching local ecosystems.
Names and Synonyms
Common Names
- flat goldentop
- flat-top fragrant goldenrod
- flat-top goldenrod
- fragrant goldenrod
- grass-leaved goldenrod
- narrow-leaved goldenrod
- northern smooth goldentop
- common goldentop
Scientific Names
Accepted name
Euthamia graminifoliaSynonyms
- Solidago graminifolia
- Euthamia graminifolia var. polycephala
- Solidago graminifolia var. major
- Solidago graminifolia f. gemmans
- Solidago lanceolata var. major
- Solidago graminifolia var. nuttallii
- Solidago graminifolia var. grahamii
- Chrysocoma virginiana
- Solidago bracteata
- Euthamia fastigiata
- Euthamia graminifolia var. major
- Solidago graminifolia f. bulbipara
- Solidago floribunda
- Euthamia bracteata
- Solidago graminifolia var. polycephala
- Solidago graminifolia var. septentrionalis
- Solidago polycephala
- Solidago perglabra
Regional and Traditional Names
German:
- Grasblättrige Goldrute
- Grasblättrige Goldrute
- Grasblättrige Schirmgoldrute
French:
- verge d'or graminifoliée
- verge d'or à feuilles de graminée
- verge d’or à feuilles de graminée
Sources: Wikidata, Catalogue of Life
Taxonomical Classification
This plant belongs to the kingdom Plantae and the phylum Streptophyta. Within the class Equisetopsida and subclass Magnoliidae, it is classified under the order Asterales. Finally, it is a member of the family Asteraceae within the genus Euthamia.
| Rank | Classification |
|---|---|
| Kingdom | Plantae |
| Phylum | Streptophyta |
| Class | Equisetopsida |
| Subclass | Magnoliidae |
| Order | Asterales |
| Family | Asteraceae |
| Genus | Euthamia |
Sources: The World Checklist of Vascular Plants (WCVP)
Distribution
This plant exhibits a scattered distribution across several regions of the European continent. In Northern Europe, its presence is documented within the territories of Great Britain and Ireland. The species can also be found further north in the Scandinavian countries of Norway and Sweden. Additionally, its range extends into Middle Europe, specifically within the borders of Austria. Together, these locations define the known geographical footprint of Euthamia graminifolia.
| Region | Area |
|---|---|
| Northern Europe | Great Britain |
| Northern Europe | Ireland |
| Northern Europe | Norway |
| Northern Europe | Sweden |
| Middle Europe | Austria |
| Middle Europe | Belgium |
| Middle Europe | Czechia-Slovakia |
| Middle Europe | Germany |
| Middle Europe | Hungary |
| Middle Europe | Poland |
Sources: The World Checklist of Vascular Plants (WCVP)
Botanical Identification
Ecology
The ecology of Euthamia graminifolia is characterized by its adaptability to disturbed environments and its tendency to expand beyond intended boundaries. While frequently encountered as a cultivated plant in various horticultural settings, it possesses the biological capacity to become a readily escaped species, colonizing new areas where it was not originally planted. This ability to escape cultivation suggests a high degree of ecological plasticity, allowing it to integrate into local ecosystems and compete with native flora. Its presence in both managed landscapes and spontaneous, unmanaged habitats indicates a versatile life history strategy suited for colonizing open ground and disturbed soils.
- Habitat :
- cultivated plant, readily escaped
Life history
The life history of Euthamia graminiifolia is characterized by its classification as a perennial plant, allowing it to persist through multiple growing seasons. As a hemicryptophyte, it maintains its perennuating buds at the soil surface, protected by leaf litter or ground debris during unfavorable conditions. This growth habit is further defined by its evergreen nature, ensuring that it maintains its biological presence and structural integrity throughout its lifecycle.
- Deciduousness :
- evergreen
- Life form :
- hemicryptophyte
- Lifecycle :
- perennial
Morphology
The morphology of Euthamia graminifolia is characterized by its growth form as a non-woody herb, specifically categorized as a forb. This plant is self-supporting rather than acting as a climber or liana, and it functions as an independent organism without parasitic tendencies. It is a terrestrial species, neither aquatic nor epiphytic. In terms of stature, the plant maintains a relatively low profile, with a height that typically ranges from a minimum of 0.5 m to a maximum of 0.8 m, resulting in a mean plant height of approximately 0.6 m.
- Aquatic :
- terrestrial
- Climber :
- self-supporting
- Epiphyte :
- terrestrial
- Growth form :
- herb
- Growth form :
- forb
- Parasite :
- independent
- Plant height max:
- 0.8 m
- Plant height mean:
- 0.6 m
- Plant height min:
- 0.5 m
- Woodiness :
- non-woody
Physiology
The physiology of Euthamia graminifolia is characterized by a C3 photosynthetic pathway, a metabolic strategy where the initial fixation of carbon dioxide occurs through the enzyme Rubisco to form a three-carbon compound. This pathway dictates the plant's carbon assimilation efficiency and its specific water-use patterns, as the reliance on stomatal opening for CO2 uptake necessitates a physiological balance between gas exchange and transpiration. As a C3 plant, its metabolic processes are highly sensitive to environmental variables such as light intensity and temperature, which influence the rate of carboxylation and the potential for photorespiration. This fundamental physiological framework governs the plant's overall energy production, biomass accumulation, and its adaptive responses to the specific ecological niches it occupies.
- Photosynthetic pathway :
- C3
Reproduction
The reproduction of Euthamia graminifolia is characterized by a specific phenological window and specialized biological mechanisms. The flowering period begins in July and extends through October. During this time, the plant utilizes a biotic pollination syndrome, specifically relying on insects to facilitate the transfer of pollen. Self-fertilization is a present capability within this species, ensuring reproductive success under various conditions. Following fertilization, the plant produces dry fruits containing small seeds. These seeds are notably lightweight, with a mean mass of 0.000106 g (ranging from a minimum of 0.00007 g to a maximum of 0.0002 g) and a consistent seed volume of 0.098 mm³. To facilitate the spread of offspring, the plant employs an anemochorous dispersal syndrome, utilizing wind to transport its seeds across the environment.
- Dispersal syndrome :
- anemochorous
- Flowering time :
- Jul
- Flowering time :
- Oct
- Fruit dryness :
- dry
- Pollination syndrome :
- insect
- Pollination syndrome :
- biotic
- Seed mass max:
- 2e-04 g
- Seed mass mean:
- 0.000106 g
- Seed mass min:
- 7e-05 g
- Seed volume max:
- 0.098 mm³
- Self fertilization :
- present
Sources: Global Inventory of Floras and Traits (GIFT)
Chemicals
Euthamia graminifolia has 5 reported phytochemicals identified across 0 scientific publications and several other databases. The most consistently reported chemicals include Flavonoids, CHLOROGENIC ACID, Isoschaftoside, Schaftoside, quercitrin.
| Chemical | Supporting sources | Consensus |
|---|---|---|
| Flavonoids | 2 supporting sources | ★☆☆☆☆ |
| CHLOROGENIC ACID | 1 supporting sources | ★☆☆☆☆ |
| Isoschaftoside | 1 supporting sources | ★☆☆☆☆ |
| Schaftoside | 1 supporting sources | ★☆☆☆☆ |
| quercitrin | 1 supporting sources | ★☆☆☆☆ |
Flavonoids
- Acta poloniae pharmaceutica
- Molecules (Basel, Switzerland)
CHLOROGENIC ACID
- Molecules (Basel, Switzerland)
Isoschaftoside
- Acta poloniae pharmaceutica
Schaftoside
- Acta poloniae pharmaceutica
quercitrin
- Molecules (Basel, Switzerland)
Activities
Euthamia graminifolia has 3 reported activities identified across 0 scientific publications and several other databases. The most consistently reported activities include Antimicrobial, Antioxidant, Diuretic.
| Activity | Supporting sources | Consensus |
|---|---|---|
| Antimicrobial | 1 supporting sources | ★☆☆☆☆ |
| Antioxidant | 1 supporting sources | ★☆☆☆☆ |
| Diuretic | 1 supporting sources | ★☆☆☆☆ |
Antimicrobial
- Molecules (Basel, Switzerland)
Antioxidant
- Molecules (Basel, Switzerland)
Diuretic
- Molecules (Basel, Switzerland)
Preparations
| Preparations | Sources | Consensus |
|---|---|---|
| methanol extracts | Wiadomosci parazytologiczne (and other 1 sources) | ★☆☆☆☆ |