Pulsatilla ambigua

Names and Synonyms

Scientific Names

Accepted name

Synonyms

• Pulsatilla albana var. sibirica
• Pulsatilla vulgaris var. pinnatifida
• Pulsatilla regeliana
• Anemone ambigua
• Pulsatilla vulgaris var. sajanensis
• Anemone ambigua var. barbata
• Pulsatilla ambigua var. barbata
• Pulsatilla montana var. sibirica
• Anemone regeliana

Sources: Wikidata

Taxonomical Classification

This plant belongs to the kingdom Plantae and the phylum Streptophyta, falling under the class Equisetopsida and subclass Magnoliidae. It is classified within the order Ranunculales and the family Ranunculaceae. Finally, it is identified under the genus Pulsatilla.

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant, Pulsatilla ambigua, exhibits a specific geographical distribution concentrated within the diverse regions of Siberia. Its presence is documented across several key territories, starting with the Altai mountains. The species also thrives within the borders of Buryatia and the Chita region. Furthermore, its natural habitat extends into the vast landscapes of the Irkutsk oblast. Finally, the plant can be found growing in the Krasnoyarsk territory, completing its Siberian range.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Pulsatilla ambigua is characterized by its specialized preference for specific geological and topographical conditions, primarily thriving within mountainous regions. It is specifically adapted to colonize sandy substrates, where the loose, well-draining nature of the soil plays a critical role in its establishment and growth patterns. This association with sandy mountain environments suggests a niche requirement for habitats that offer particular drainage qualities and perhaps specific thermal properties found in high-altitude sandy terrains.

Habitat :

mountains, sand

Life history

The life history of Pulsatilla ambigua is characterized by its nature as a perennial plant, meaning it survives for multiple years through successive growing seasons. As a long-lived herb, it establishes itself in its habitat and undergoes a recurring cycle of seasonal development, typically emerging from underground structures such as rhizomes or thickened roots once environmental conditions become favorable. During its active growth phase, the plant invests energy into vegetative development before transitioning to a reproductive stage, where it produces flowers to facilitate genetic exchange. Following the flowering period, the plant enters a period of dormancy during unfavorable conditions, preserving its energy reserves to ensure survival and continued growth in subsequent years.

Lifecycle :

perennial

Morphology

The morphology of Pulsatilla ambigua is characterized by its growth form as a non-woody herb, specifically classified as a forb. This self-supporting plant functions independently as a non-parasitic species within its habitat. In terms of stature, it is a diminutive specimen, maintaining a plant height that ranges from a minimum of 0.05 m to a maximum of 0.15 m. Although it can exist in various moisture gradients, its primary ecological habit is terrestrial rather than aquatic or semiaquatic.

Aquatic :

terrestrial

Climber :

self-supporting

Growth form :

herb

Parasite :

independent

Plant height max:

0.15 m

Plant height min:

0.05 m

Woodiness :

non-woody

Physiology

The physiology of Pulsatilla ambigua is characterized by a metabolic framework defined by its photosynthetic pathway, which functions strictly via the C3 mechanism. In this pathway, carbon dioxide is fixed directly through the enzyme RuBisCO during the Calvin cycle, occurring within the mesophyll cells without the spatial or temporal separation seen in C4 or CAM species. This C3 process is highly efficient under the temperate, moist, and shaded to semi-shaded environments typically inhabited by the species, where cooler temperatures minimize photorespiration. The plant's physiological energy acquisition is closely tied to its seasonal growth cycle, utilizing this carbon fixation strategy to drive the development of its vegetative structures and the synthesis of secondary metabolites before entering dormancy.

Photosynthetic pathway :

C3

Reproduction

The reproduction of Pulsatilla ambigua is characterized by its bisexual nature, meaning the individual flowers contain both male and female reproductive organs. The flowering period for this species typically begins in May and concludes in June. Following successful pollination, the plant produces small fruits that maintain a consistent size, with a minimum, mean, and maximum length all measured at approximately 0.25 cm.

Flowering time :

May

Flowering time :

Jun

Fruit length max:

0.25 cm

Reproduction sexual :

bisexual

Sources: Global Inventory of Floras and Traits (GIFT)

Chemicals

Pulsatilla ambigua has 1 reported phytochemicals identified across 0 scientific publications and several other databases. The most consistently reported chemicals include Saponins.

Saponins

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