Sigesbeckia glabrescens

Names and Synonyms

Scientific Names

Accepted name

Synonyms

• Sigesbeckia orientalis f. glabrescens
• Sigesbeckia orientalis subsp. glabrescens
• Sigesbeckia orientalis var. glabrescens
• Sigesbeckia formosana
• Sigesbeckia glabrescens var. leucoclada
• Sigesbeckia pubescens var. glabrescens

Sources: Wikidata, Catalogue of Life

Taxonomical Classification

This plant belongs to the kingdom Plantae and is classified under the phylum Streptophyta and class Equisetopsida. Within the subclass Magnoliidae, it falls under the order Asterales and is a member of the family Asteraceae. Specifically, its taxonomic designation is placed within the genus Sigesbeckia.

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant exhibits a broad geographical distribution across several key regions in East Asia. In the northern reaches of its range, it can be found within the Russian Far East, specifically in the Primorye region. Its presence extends significantly into China, where it is documented across diverse territories such as Manchuria and Inner Mongolia. Furthermore, the species is established in the South-Central regions of China. Finally, its distribution reaches as far south as the tropical island of Hainan.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Sigesbeckia glabrescens is characterized by its specific distribution across varying altitudinal gradients, primarily occupying mid-elevation landscapes. This species thrives within a defined elevational range that begins at a minimum of 300 m AMSL and extends up to a maximum of 1000 m AMSL. Throughout its natural habitat, the plant maintains a mean elevation of approximately 650 m AMSL, suggesting a preference for the environmental conditions typical of these intermediate montane or sub-montane zones.

Elevational range max:

1000 m AMSL

Elevational range mean:

650 m AMSL

Elevational range min:

300 m AMSL

Life history

The life history of Sigesbeckia glabrescens is characterized by its classification as an annual plant, completing its entire reproductive cycle within a single growing season. Starting from seed germination, the plant undergoes rapid vegetative growth to establish its structure before transitioning into its reproductive phase. As an annual species, it allocates its energy toward producing flowers and seeds rather than maintaining long-term vegetative structures, ensuring the continuation of the species through the dispersal of its progeny. Once the seeds have matured and been released into the environment, the parent plant completes its biological mission and dies, leaving the next generation to emerge in subsequent seasonal cycles.

Lifecycle :

annual

Morphology

The morphology of Sigesbeckia glabrescens is characterized by a growth form primarily identified as a herb and a forb. In terms of its structural habit, the plant is categorized as non-woody, lacking significant lignification in its stems. Regarding its climbing capacity, it functions as a self-supporting plant, exhibiting neither obligatory nor facultative climbing tendencies such as a liana or vine, but rather maintaining its own upright or spreading structure.

Climber :

self-supporting

Growth form :

herb

Growth form :

forb

Woodiness :

non-woody

Reproduction

The reproduction of Sigesbeckia glabrescens is primarily facilitated through the production of small, specialized fruits that follow a consistent morphological pattern. The reproductive output of this species is characterized by highly uniform fruit dimensions, with measurements indicating a standardized size across the population. Specifically, the fruit length exhibits no variance, maintaining a constant value where the minimum, mean, and maximum lengths are all recorded at exactly 0.25 cm. This uniformity in fruit size suggests a highly stable reproductive mechanism within the species, ensuring that the dispersal units are consistent in their physical characteristics.

Fruit length max:

0.25 cm

Sources: Global Inventory of Floras and Traits (GIFT)

Plant Parts

Sigesbeckia glabrescens has 2 reported plant parts identified across 2 scientific publications and several other databases that are studied for medicinal purposes. The most consistently reported plant part include leaf, root.

Leaf

1. Ecotoxicology and environmental safety

Root

1. Ecotoxicology and environmental safety

Chemicals

Sigesbeckia glabrescens has 2 reported phytochemicals identified across 2 scientific publications and several other databases. The most consistently reported chemicals include coumarin, ferulic acid.

coumarin

1. Ecotoxicology and environmental safety

ferulic acid

1. Ecotoxicology and environmental safety

Conditions

Sigesbeckia glabrescens has 3 reported investigations on conditions identified across 2 scientific publications and several other databases. The most consistently reported conditions include apoptosis, herbicide resistance, oxidative stress.

Apoptosis

1. Ecotoxicology and environmental safety

Herbicide resistance

1. Ecotoxicology and environmental safety

Oxidative stress

1. Ecotoxicology and environmental safety

Preparations

Sigesbeckia glabrescens has 1 reported preparations identified across 2 scientific publications and several other databases. The most consistently reported preparations include extracts from both the roots and leaves.

Extracts from both the roots and leaves

1. Ecotoxicology and environmental safety