Heliopsis Scabara

Names and Synonyms

Common Names

• smooth oxeye
• sunflower heliopsis
• sunflower-everlasting
• sweet oxeye
• Rough Oxeye

Scientific Names

Accepted name

Synonyms

• Buphthalmum helianthoides

Regional and Traditional Names

Sources: Wikidata, Catalogue of Life

Taxonomical Classification

This plant belongs to the kingdom Plantae and is classified within the phylum Streptophyta and the class Equisetopsida. Under the subclass Magnoliidae, it is organized into the order Asterales and the family Asteraceae. Ultimately, its specific taxonomic identity is defined by the genus Heliopsis.

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant exhibits a specific distribution pattern across several regions of the European continent. In Northern Europe, its presence is documented in both Denmark and Great Britain. Moving toward the center of the continent, the species is also found throughout Middle Europe. Specifically, it inhabits the landscapes of Austria and Germany. Finally, its geographical range extends further east to include Hungary.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Heliopsis helianthoides is characterized by a broad environmental tolerance, allowing it to colonize diverse landscapes across a significant altitudinal gradient. This species can be found at elevations ranging from as low as 40 m AMSL to a maximum of 2850 m AMSL, demonstrating a remarkable capacity to adapt to both lowland and high-altitude climates. In terms of preferred terrain, it typically thrives in inhabited places, along roadsides, and within shrubberies, where it often occupies disturbed or transitional ecological niches.

Elevational range max:

2850 m AMSL

Elevational range min:

40 m AMSL

Habitat :

inhabited places, roadsides, shrubberies

Life history

The life history of Helioopsis helianthoides is characterized by its status as a perennial plant, allowing it to persist through multiple growing seasons and establish a stable presence in its habitat. As a hemicryptophyte, its perennating buds are located at or just below the soil surface, protected by leaf litter or debris during unfavorable periods. This specific life form ensures survival by shielding the regenerative organs from environmental stressors, enabling the plant to re-emerge effectively each spring.

Life form :

hemicryptophyte

Lifecycle :

perennial

Morphology

The morphology of Heliopsis helianthoides is characterized by a growth form as a non-woody herb, specifically classified as a forb. This species is a self-supporting plant that does not function as a climber or a vine, and it maintains an independent existence as it is not a parasite. In terms of its ecological positioning, it is strictly terrestrial, lacking any epiphytic or aquatic tendencies. The plant typically reaches a height ranging from a minimum of 0.5 meters to a maximum of 1.5 meters.

Aquatic :

terrestrial

Climber :

self-supporting

Epiphyte :

terrestrial

Growth form :

herb

Growth form :

forb

Parasite :

independent

Plant height max:

1.5 m

Plant height min:

0.5 m

Woodiness :

non-woody

Physiology

The physiology of Heliopsis helianthoides is characterized by its reliance on the C3 photosynthetic pathway, a mechanism involving the direct fixation of carbon dioxide through the enzyme Rubisco within the mesophyll cells. This metabolic strategy dictates its resource acquisition and carbon assimilation patterns within its native environment. Furthermore, the plant exhibits a Specific Leaf Area (SLA) with a mean value of 164.27 cm²/g, a morphological and physiological indicator that reflects the relationship between its leaf surface area and its dry mass. This particular SLA value provides insight into its leaf structure, carbon allocation strategies, and its efficiency in light interception relative to its biomass investment.

Photosynthetic pathway :

C3

Specific Leaf Area (SLA) mean:

164.27 cm²/g

Reproduction

The reproduction of Heliopsis helianthoides is characterized by a specific flowering window and the production of lightweight seeds. The flowering period for this species typically begins in August and extends through October, though the timing can be variable depending on environmental conditions. Following pollination, the plant produces seeds with a mean mass of approximately 0.0040716 g. The weight of individual seeds varies within a narrow range, with a minimum recorded mass of 0.003 g and a maximum mass reaching 0.0058 g.

Flowering time :

Aug

Flowering time :

Oct

Seed mass max:

0.0058 g

Seed mass mean:

0.0040716 g

Seed mass min:

0.003 g

Sources: Global Inventory of Floras and Traits (GIFT)

Chemicals

Heliopsis helianthoides has 1 reported phytochemicals identified across 0 scientific publications and several other databases. The most consistently reported chemicals include Germacrene D.

Germacrene D

1. Plants (Basel, Switzerland)