Pumkin

Names and Synonyms

Common Names

• Pumkin
• Pumpkin
• great pumpkin
• red gourd
• squash
• winter squash
• pompion

Scientific Names

Accepted name

Synonyms

• Cucurbita maxima var. zapallito
• Cucurbita maxima farinae
• Cucurbita maxima virginica
• Cucurbita maxima var. macrocina
• Cucurbita maxima var. sphaerocina
• Cucurbita maxima var. chlorocina
• Cucurbita maxima var. coffeisperma
• Cucurbita maxima var. virginica
• Cucurbita maxima convar. ecoronata
• Cucurbita maxima var. badagarensis
• Cucurbita maxima var. chiloensis
• Cucurbita maxima cercuraicensis
• Cucurbita rapallito
• Pileocalyx elegans
• Cucurbita maxima convar. parvifructina
• Cucurbita maxima var. boliviana
• Cucurbita maxima var. triloba
• Cucurbita maxima var. brachycina
• Cucurbita maxima var. constricta
• Cucurbita maxima var. turgida
• Cucurbita maxima var. microcina
• Cucurbita pepo var. maxima
• Cucurbita maxima var. turbanula
• Cucurbita maxima convar. semiturbana
• Cucurbita turbaniformis var. chiloensis
• Cucurbita maxima var. naudinii
• Cucurbita maxima var. zipinka
• Cucurbita maxima var. chlorophthalma
• Cucurbita maxima var. castanina
• Cucurbita pileiformis
• Cucurbita maxima var. rostrata
• Cucurbita sulcata
• Cucurbita turbaniformis
• Cucurbita maxima var. pluviceps
• Cucumis rapallito
• Cucurbita maxima var. californica
• Cucurbita maxima var. hollandica
• Pepo maximus
• Cucurbita maxima var. grisea
• Cucurbita maxima var. laevis
• Cucurbita maxima var. clypeiformis
• Cucurbita maxima var. leucadica
• Cucurbita maxima var. ambigua
• Cucurbita maxima var. neapolitana
• Cucurbita maxima var. turbaniformis
• Cucurbita maxima var. byzantina
• Cucurbita maxima var. aromatica
• Cucurbita maxima var. penebroma
• Cucurbita maxima var. messanensis
• Cucurbita maxima var. farinae
• Cucurbita maxima var. ohioensis
• Cucurbita maxima var. grayana
• Cucurbita maxima var. valparaisiana
• Cucurbita maxima var. figarii
• Cucurbita maxima var. microcarpa
• Cucurbita maxima var. corticosa
• Cucurbita maxima convar. turbaniformis
• Cucurbita turbaniformis var. meloniformis
• Cucurbita maxima messanensis
• Cucurbita maxima elliptica
• Cucurbita maxima castanina
• Cucurbita maxima leucoderma
• Cucurbita maxima cancroides
• Cucurbita maxima gigantea
• Cucurbita maxima brasiliensis
• Cucurbita maxima lignosa
• Cucurbita maxima rubra
• Cucurbita maxima var. alba
• Cucurbita maxima var. grossa
• Cucurbita maxima var. megalocarpa
• Cucurbita maxima var. depressa
• Cucurbita maxima var. ovalis

Regional and Traditional Names

Sources: Wikidata, Catalogue of Life

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 Cucurbitaleales and the family Cucurbitaceae. Ultimately, its taxonomic identity is defined by the genus Cucurbita.

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant exhibits a diverse geographical distribution across several regions of the European continent. In Northern Europe, its presence can be documented in countries such as Great Britain and Sweden. Moving toward the center of the continent, it is also found within Middle Europe, specifically in Germany and the Czechia-Slovakia region. Furthermore, the species extends its reach into Southeastern Europe, where it is located in Albania. Through these various locations, the plant demonstrates a broad adaptability to different European climates.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Cucurbita maxima is characterized by its adaptability to diverse environments, ranging from sea level up to an elevation of 1750 m AMSL. It thrives within various ecosystems, including anthropogenic areas (Área Antrópica), the Cerrado (latu sensu), and Ombrophilous Forests (Floresta Ombrófila/Floresta Pluvial). This wide distributional range across different altitudes and habitats demonstrates the species' ability to colonize both disturbed human-influenced landscapes and complex natural biomes.

Elevational range max:

1750 m AMSL

Elevational range min:

0 m AMSL

Habitat :

Área Antrópica, Cerrado (lato sensu), Floresta Ombrófila (= Floresta Pluvial)

Life history

The life history of Cucurbita maxima is characterized by an annual lifecycle, meaning the plant completes its entire developmental sequence—from germination to seed production—within a single growing season. As a therophyte, it follows a strategic survival pattern where the plant survives the unfavorable seasons exclusively in the form of seeds, which remain dormant until environmental conditions become optimal for growth. This life form allows the species to rapidly colonize available habitats by investing energy into quick vegetative expansion and prolific seed production rather than maintaining permanent above-ground structures.

Life form :

therophyte

Lifecycle :

annual

Morphology

The morphology of Cucurbita maxima is characterized by a non-woody, herbaceous growth form, specifically classified as a forb. As an independent organism, it does not exhibit parasitic behavior and thrives in terrestrial environments rather than aquatic or epiphytic habitats. The plant functions as an obligatory vine, utilizing a rambling or prostrate shoot orientation to spread across the ground or climb. In terms of stature, it is a climbing herb that typically reaches a plant height ranging from a minimum of 2 m to a maximum of 5 m, with a documented mean height of 3.8 m.

Aquatic :

terrestrial

Climber :

vine

Climber :

obligatory

Epiphyte :

terrestrial

Growth form :

herb

Growth form :

forb

Parasite :

independent

Plant height max:

5 m

Plant height mean:

3.8 m

Plant height min:

2 m

Shoot orientation :

prostrate

Woodiness :

non-woody

Physiology

The physiology of Cucurbita maxima is characterized by its specific carbon fixation strategy and vegetative morphology. This species utilizes the C3 photosynthetic pathway, which dictates its metabolic processes and environmental adaptations. The plant's foliage is substantial, featuring leaves that exhibit a mean width of 30 cm, with both minimum and maximum recorded widths reaching 30 cm, while the leaf length is documented at a maximum of 30 cm. Structurally, the plant does not exhibit succulence, maintaining standard leaf tissue density rather than specialized water-storing cells. Furthermore, Cucurbita maxima does not function as a nitrogen fixer, meaning it relies on soil nitrogen availability rather than symbiotic nitrogen-fixing bacteria to support its physiological development.

Leaf length max:

30 cm

Leaf width mean:

30 cm

Nitrogen fixer :

no

Photosynthetic pathway :

C3

Succulence :

no

Reproduction

The reproduction of Cucurbita maxima is characterized by a monoecious sexual reproduction system, where both male and female flowers are present on the same plant, and self-fertilization is documented as present. The flowering period typically occurs around June, though it can vary depending on environmental conditions. The plant relies on biotic pollination, specifically utilizing an insect pollination syndrome to facilitate the transfer of pollen. Following successful fertilization, the plant develops fleshy fruits. The seeds produced during this process exhibit specific morphological dimensions, with a mean seed mass of approximately 0.240875 g (ranging from a minimum of 0.1689 g to a maximum of 0.372 g) and a consistent seed volume of 270 mm³. Dispersal of the species is primarily anthropochorous, meaning it is aided by human activity.

Dispersal syndrome :

anthropochorous

Flowering time :

Jun

Fruit dryness :

fleshy

Pollination syndrome :

insect

Pollination syndrome :

biotic

Reproduction sexual :

monoecious

Seed mass max:

0.372 g

Seed mass mean:

0.240875 g

Seed mass min:

0.1689 g

Seed volume max:

270 mm³

Self fertilization :

present

Sources: Global Inventory of Floras and Traits (GIFT)

Plant Parts

Cucurbita maxima has 4 reported plant parts identified across 6 scientific publications and several other databases that are studied for medicinal purposes. The most consistently reported plant part include seed, flower, fruit, leaf.

Seed

1. Journal of ethnopharmacology
2. Heliyon
3. Journal of food biochemistry

Flower

1. Heliyon

Fruit

1. Journal of ethnopharmacology

Leaf

1. Heliyon

Chemicals

Cucurbita maxima has 34 reported phytochemicals identified across 6 scientific publications and several other databases. The most consistently reported chemicals include Carotenoids, Flavonoids, 40K, Antitrypsin, Arachidic acid.

Carotenoids

1. Frontiers in plant science
2. Molecular breeding : new strategies in plant improvement
3. Foods (Basel, Switzerland)

Flavonoids

1. Heliyon
2. Molecules (Basel, Switzerland)

40K

1. Journal of environmental radioactivity

Antitrypsin

1. Roczniki Akademii Medycznej w Bialymstoku (1995)

Arachidic acid

1. Dr. Duke

Ash

1. Dr. Duke

CALCIUM

1. Dr. Duke

CHLOROPHYLL

1. Frontiers in plant science

COPPER

1. Dr. Duke

Carotenes

1. Heliyon

Activities

Cucurbita maxima has 176 reported activities identified across 6 scientific publications and several other databases. The most consistently reported activities include Analgesic, Antidiabetic, Antioxidant, Nematicide, Pesticide.

Analgesic

1. Dr. Duke
2. Journal of food biochemistry

Antidiabetic

1. Dr. Duke
2. Molecules (Basel, Switzerland)

Antioxidant

1. Dr. Duke
2. Journal of food biochemistry

Nematicide

1. Dr. Duke
2. Journal of food biochemistry

Pesticide

1. Dr. Duke
2. Journal of food biochemistry

5-Alpha-Reductase-Inhibitor

1. Dr. Duke

ACE-Inhibitor

1. Dr. Duke

Allergenic

1. Dr. Duke

Alpha-Reductase-Inhibitor

1. Dr. Duke

Anemiagenic

1. Dr. Duke

Medicinal Uses

Cucurbita maxima has 14 reported medicinal uses identified across 6 scientific publications and several other databases. The most consistently reported uses include COVID-19, Diabetes mellitus, Entamoeba histoLYtica, Giardia lamblia, Salt Stress.

Most Reported Uses

Preparations