Spanish gourd

Names and Synonyms

Common Names

• Spanish gourd
• butternut pumpkin
• butternut squash
• calabaza pumpkin
• cheese pumpkin
• golden cushaw
• pumpkin
• red gourd
• squash
• squash gourd
• winter crookneck squash
• Calabaza
• Dickinson pumpkin
• Kentucky field pumpkin
• Large cheese pumpkin
• Long Island cheese pumpkin
• Neck pumpkin
• Seminole pumpkin
• Tahitian squash
• Tennessee sweet potato
• West Indian pumpkin

Scientific Names

Accepted name

Synonyms

• Pepo moschatus
• Cucurbita moschata var. macrocarpa
• Cucurbita moschata var. luffiformis
• Cucurbita moschata var. vulgaris
• Cucurbita moschata var. toonas
• Cucurbita macrocarpa
• Pepo macrocarpus
• Gymnopetalum calyculatum
• Pepo eximius
• Pepo indicus
• Cucurbita moschata var. depressa
• Cucurbita moschata var. mexicana
• Cucurbita moschata var. claviformis
• Cucurbita pepo var. moschata
• Cucurbita moschata var. magna
• Cucurbita colombiana
• Cucurbita moschata var. madagascariensis
• Cucurbita hippopera
• Cucurbita meloniformis
• Cucurbita moschata var. brunnea
• Cucurbita moschata var. colombiana
• Cucurbita moschata var. brachiina
• Cucurbita moschata var. meloniformis
• Cucurbita moschata var. abbreviata
• Cucurbita moschata f. yokohamana
• Cucurbita moschata var. cubensis
• Cucurbita moschata var. minor
• Cucurbita moschata var. pusilla
• Cucurbita moschata var. naudinii
• Cucurbita moschata var. barbarica
• Cucurbita moschata var. manticalis

Regional and Traditional Names

Sources: Wikidata, Catalogue of Life

Taxonomical Classification

This plant belongs to the kingdom Plantae and is classified under the phylum Streptophyta within the class Equisetopsida. As a member of the subclass Magnoliidae and the order Cucurbitaleales, it falls under the family Cucurbitaceae. Finally, it is categorized under the genus Cucurbita, specifically identified as the species Cucurbita moschata.

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant exhibits a diverse presence across various regions of the European continent. In Middle Europe, its distribution can be specifically noted within the borders of Austria. The species also extends into Southwestern Europe, where it is found in both Portugal and Spain. Moving toward the Mediterranean, its range continues through Southeastern Europe. Specifically, this medicinal plant is documented in the territories of Albania and Italy.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Cucurbita moschatia is characterized by its ability to thrive across a broad altitudinal gradient, spanning from sea level (0 m AMSL) up to a maximum elevation of 2200 m AMSL. This species demonstrates significant ecological plasticity, inhabiting diverse environments ranging from disturbed anthropogenic areas (Área Antrópica) to more stable and complex natural ecosystems. It is commonly found within terra firme forests (Floresta de Terra Firme) as well as ombrophilous forests (Floresta Ombrófila), which includes high-rainfall tropical rain forests (Floresta Pluvial). This distribution suggests the plant is well-adapted to both human-modified landscapes and primary forest structures, capable of utilizing various niches within moist, forested habitats.

Elevational range max:

2200 m AMSL

Elevational range min:

0 m AMSL

Habitat :

Área Antrópica, Floresta de Terra Firme, Floresta Ombrófila (= Floresta Pluvial)

Life history

The life history of Cucurbita moschata is characterized by an annual lifecycle, meaning the plant completes its entire developmental process—from germination to seed production—within a single growing season. As a fast-growing herbaceous vine, it begins its life with rapid seedling emergence, quickly establishing a sprawling network of tendrils and large, lobed leaves to maximize photosynthetic surface area. During its vegetative stage, the plant focuses on extensive lateral expansion across the soil surface. This is followed by a reproductive phase where it produces distinct male and female flowers on the same plant, facilitating pollination. Once pollination occurs, the plant transitions its energy into the development of large, fleshy fruits. Following the maturation of these fruits and the subsequent release of seeds, the individual plant reaches the end of its biological cycle and dies, leaving the next generation to rely on the seeds dispersed for the following year.

Lifecycle :

annual

Morphology

The morphology of Cucurbita moschatas is characterized by its growth form as a non-woody herb and forb. This terrestrial species functions as an independent organism rather than a parasite or epiphyte. It exhibits a climbing habit as an obligatory vine, utilizing a prostrate shoot orientation to spread across the ground. In terms of physical dimensions, the plant's height is highly variable, with a mean height of approximately 0.6 m, though individual specimens can reach a minimum of 4 m and a maximum of up to 5 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:

0.6 m

Plant height min:

4 m

Shoot orientation :

prostrate

Woodiness :

non-woody

Physiology

The physiology of Cucurbita moschatia is characterized by a robust metabolic framework designed for efficient nutrient uptake and seasonal growth cycles. As a member of the Cucurbitaceae family, it utilizes a specialized photosynthetic pathway to convert solar energy into chemical energy, supporting the development of its large, nutrient-dense fruits and expansive foliage. The plant relies heavily on the absorption of essential minerals through its extensive root system, which facilitates the transport of water and solutes throughout its vascular tissues. Regarding its symbiotic capabilities and nutrient cycling, Cucurbita moschatia is not a nitrogen fixer; it lacks the specialized root nodules containing diazotrophic bacteria required to convert atmospheric nitrogen into bioavailable forms, and therefore depends entirely on the availability of nitrates and ammonium within the soil medium for its nitrogen requirements. Its physiological processes are closely tied to soil moisture levels and ambient temperature, which regulate transpiration rates and the overall efficiency of its metabolic activities.

Nitrogen fixer :

no

Reproduction

The reproduction of Cucurbita moschata is characterized by a flowering period that is highly flexible, beginning as early as December and concluding around July, though the timing can be variable. The plant relies on biotic pollination syndromes, specifically utilizing insects to facilitate the transfer of pollen. The presence of self-fertilization ensures reproductive success under various environmental conditions. Regarding its progeny, the plant produces seeds with a highly consistent mass, with a mean, minimum, and maximum seed mass all measured at 0.088 g.

Flowering time :

Dec

Flowering time :

Jul

Pollination syndrome :

insect

Pollination syndrome :

biotic

Seed mass mean:

0.088 g

Self fertilization :

present

Sources: Global Inventory of Floras and Traits (GIFT)

Plant Parts

Cucurbita moschata has 4 reported plant parts identified across 7 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. PloS one
2. BMC complementary and alternative medicine
3. Heliyon

Flower

1. PloS one
2. Molecules (Basel, Switzerland)

Fruit

1. PloS one

Leaf

1. PloS one

Chemicals

Cucurbita moschata has 23 reported phytochemicals identified across 7 scientific publications and several other databases. The most consistently reported chemicals include ABSCISIC ACID, CATALASE, CINNAMIC ACID, Carotenoids, ETHEPHON.

ABSCISIC ACID

1. Frontiers in plant science

CATALASE

1. Biology

CINNAMIC ACID

1. Molecules (Basel, Switzerland)

Carotenoids

1. Molecules (Basel, Switzerland)

ETHEPHON

1. Frontiers in plant science

ETHYLENE

1. Frontiers in plant science

Flavonoids

1. Molecules (Basel, Switzerland)

Glycosides

1. Molecules (Basel, Switzerland)

Peroxidase

1. Biology

SYRINGIC ACID

1. Molecules (Basel, Switzerland)

Activities

Cucurbita moschata has 4 reported activities identified across 7 scientific publications and several other databases. The most consistently reported activities include Antioxidant, Analgesic, Antibacterial, Antimicrobial.

Antioxidant

1. Molecules (Basel, Switzerland)
2. Iranian journal of basic medical sciences

Analgesic

1. Molecules (Basel, Switzerland)

Antibacterial

1. Molecules (Basel, Switzerland)

Antimicrobial

1. Molecules (Basel, Switzerland)

Conditions

Cucurbita moschata has 10 reported investigations on conditions identified across 7 scientific publications and several other databases. The most consistently reported conditions include Diabetes mellitus, burns, cancer, diabetes mellitus, inflammation.

Diabetes mellitus

1. Molecules (Basel, Switzerland)

Burns

1. Iranian journal of basic medical sciences

Cancer

1. International journal of medical sciences

Diabetes mellitus

1. BMC complementary and alternative medicine

Inflammation

1. Molecules (Basel, Switzerland)

Miscarriage

1. International journal of medical sciences

Obesity

1. International journal of medical sciences

Osteoporosis

1. International journal of medical sciences

Oxidative stress

1. Biology

Preterm birth

1. International journal of medical sciences

Preparations

Cucurbita moschata has 7 reported preparations identified across 7 scientific publications and several other databases. The most consistently reported preparations include Cucurbitaceae seeds, FB fractions, Tendril extract, hydro-methanolic extract, methanol.

Cucurbitaceae seeds

1. BMC complementary and alternative medicine

Fb fractions

1. Journal of medicinal food

Tendril extract

1. International journal of medical sciences

Hydro-methanolic extract

1. Molecules (Basel, Switzerland)

Methanol

1. Heliyon

N-hexane

1. Heliyon

N-hexane-chloroform (2:1)

1. Heliyon