Heracleum rapula

Names and Synonyms

Scientific Names

Accepted name

Sources: Wikidata

Taxonomical Classification

This plant belongs to the kingdom Plantae within the phylum Streptophyta and the class Equisetopsida. As a member of the subclass Magnoliidae and the order Apiales, it is classified under the family Apiaceae. It is specifically identified by the genus Heracleum, where it is known as Heracleum rapula.

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant, known as Heracleum rapula, exhibits a specific and localized geographical distribution. Within the vast landscape of Asia, its presence is documented in the region of China. More precisely, it can be found inhabiting the South-Central part of the country. This particular area provides the specific environmental conditions necessary for its growth. Consequently, the plant's known natural range is currently concentrated within these specific Chinese territories.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Heracleum rapula is characterized by a highly specific altitudinal niche, primarily occupying high-altitude environments. This species thrives within a narrow elevational band, maintaining a distribution that is strictly constrained by altitude. Its presence is most consistent at a mean elevation of 2100 m AMSL, with its habitat ranging from a minimum of 2000 m AMSL to a maximum of 2200 m AMSL. This specialized range suggests an ecological preference for the distinct climatic conditions, such as specific temperature regimes and moisture levels, found within these high-mountain zones.

Elevational range max:

2200 m AMSL

Elevational range mean:

2100 m AMSL

Elevational range min:

2000 m AMSL

Life history

The life history of Heracleum rapula is characterized by its classification as a perennial plant, though its growth pattern can exhibit variable tendencies depending on environmental conditions. As a perennial, the species typically maintains a persistent presence in its habitat, often establishing a robust root system that allows it to survive through multiple growing seasons. The plant undergoes a cyclical developmental process where it spends periods focusing on vegetative expansion, developing large, deeply lobed leaves to maximize photosynthetic capacity, before transitioning into its reproductive phase. During its reproductive stages, it produces large, compound umbels of white flowers to facilitate pollination, eventually setting seed to ensure the continuation of the next generation. This long-lived lifecycle allows the plant to dominate its ecological niche over time, often becoming a dominant component of the local flora.

Lifecycle :

perennial

Morphology

The morphology of Heracleum rapula is characterized by its robust stature, typically reaching an average plant height of 1 m. Depending on the specific environmental conditions and soil nutrients, the height of the specimen can vary, with individual plants measuring as short as 0.8 m and as tall as 1.2 m.

Plant height max:

1.2 m

Plant height mean:

1 m

Plant height min:

0.8 m

Physiology

The physiology of Heracleum rapula is characterized by robust vegetative growth patterns, particularly evident in the structural dimensions of its foliage which facilitate efficient photosynthetic activity. The leaf development displays specific morphological parameters, where the leaf length typically maintains a mean of 9 cm, ranging from a minimum of 8 cm to a maximum of 10 cm. Complementing this longitudinal growth, the foliage exhibits a mean leaf width of 8 cm, contributing to a substantial surface area necessary for metabolic processes. These varying dimensions in leaf length and width underscore the plant's capacity for rapid biomass accumulation and efficient gas exchange through its expanded laminar surfaces.

Leaf length max:

10 cm

Leaf length mean:

9 cm

Leaf length min:

8 cm

Leaf width mean:

8 cm

Reproduction

The reproduction of Heracleum rapula is characterized by the development of specialized fruit structures that exhibit specific dimensional variations. The resulting fruits are relatively small, with recorded lengths ranging from a minimum of 0.6 cm to a maximum of 0.7 cm, maintaining an average length of approximately 0.65 cm. In terms of width, the fruits show a similar range of variation, with a minimum width of 0.5 cm and a maximum width of 0.6 cm, resulting in a mean fruit width of 0.55 cm. These morphological parameters define the physical characteristics of the progeny during the plant's reproductive cycle.

Fruit length max:

0.7 cm

Fruit length mean:

0.65 cm

Fruit length min:

0.6 cm

Fruit width max:

0.6 cm

Fruit width mean:

0.55 cm

Fruit width min:

0.5 cm

Sources: Global Inventory of Floras and Traits (GIFT)

Plant Parts

Heracleum rapula has 1 reported plant parts identified across 1 scientific publications and several other databases that are studied for medicinal purposes. The most consistently reported plant part include root.

Root

1. Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica

Chemicals

Heracleum rapula has 19 reported phytochemicals identified across 1 scientific publications and several other databases. The most consistently reported chemicals include (+)-Marmesin, 8-Hydroxy-5-O-beta-D-glucosylpsoralen, 8-geranyloxypsoralen, BETA-SITOSTEROL, Bergapten.

(+)-Marmesin

1. Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica

8-Hydroxy-5-O-beta-D-glucosylpsoralen

1. Journal of Asian natural products research

8-geranyloxypsoralen

1. Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica

BETA-SITOSTEROL

1. Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica

Bergapten

1. Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica

Cnidilin

1. Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica

IMPERATORIN

1. Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica

Isoimperatorin

1. Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica

Isopimpinellin

1. Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica

OLEANOLIC ACID

1. Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica