orange day-lily

Names and Synonyms

Common Names

• orange daylily
• tawny daylily
• Orange Day-Lily
• fulvous day-lily
• tawny day-lily
• ditch lily

Scientific Names

Accepted name

Synonyms

• Hemerocallis lilioasphodelus var. fulva

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. Within the order Asparagales and the family Asphodelaceae, it is classified under the genus Hemerocallis.

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 observed within the territories of Great Britain and Ireland. Moving into Middle Europe, the species is also found growing in Austria. The plant's range extends further into Belgium, establishing a presence in the heart of the continent. Additionally, its distribution covers the central regions of Czechia and Slovakia.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Hemerocallis fulva is characterized by a versatile distribution across various landscapes, primarily thriving in lowland habitats. This species exhibits a significant adaptive capacity to varying altitudes, maintaining an elevational range that extends from a minimum of 1500 m AMSL to a maximum of 3700 m AMSL. This broad altitudinal gradient suggests the plant is capable of colonizing diverse environmental conditions within these vertical zones, ranging from lower-lying regions to high-altitude terrains.

Elevational range max:

3700 m AMSL

Elevational range min:

1500 m AMSL

Habitat :

Lowland

Life history

The life history of Hemerocallis fulva is characterized by its nature as a perennial plant, allowing it to persist through multiple growing seasons via its robust underground structures. It functions as a cryptophyte, meaning its perennable buds are protected underground during unfavorable conditions, and specifically exhibits the life form of a hemicryptophyte, where the overwintering buds are located at or just below the soil surface. This survival strategy ensures that the plant can re-emerge annually from its rhizomatous root system to complete its reproductive cycle.

Life form :

hemicryptophyte

Life form :

cryptophyte

Lifecycle :

perennial

Morphology

The morphology of Hemerocallis fulva is characterized by a growth form consisting of a non-woody herb and forb. It is a self-supporting plant that does not function as a climber or a parasite, maintaining an independent existence. As a terrestrial species, it is neither aquatic nor an epiphyte. The plant exhibits significant variation in stature, with heights ranging from a minimum of 0.07 m to a maximum of 1.5 m, maintaining an average plant height of approximately 0.525 m.

Aquatic :

terrestrial

Climber :

self-supporting

Epiphyte :

terrestrial

Growth form :

herb

Growth form :

forb

Parasite :

independent

Plant height max:

1.5 m

Plant height mean:

0.525 m

Plant height min:

0.07 m

Woodiness :

non-woody

Physiology

The physiology of Hemerocallis fulva is characterized by a C3 photosynthetic pathway, which dictates its carbon fixation processes and metabolic efficiency. As a non-carnivorous species, it relies entirely on traditional root-based nutrient uptake rather than trapping prey for sustenance. Its vegetative structure is defined by elongated, linear foliage, with leaf lengths ranging from a minimum of 70 cm to a maximum of 110 cm. The morphology of these leaves is further specified by their width, which typically spans from a minimum of 2 cm to a maximum of 3 cm, with a mean width observed at approximately 2.5 cm.

Carnivory :

non-carnivorous

Leaf length max:

110 cm

Leaf length min:

70 cm

Leaf width max:

3 cm

Leaf width mean:

2 cm

Leaf width min:

2.5 cm

Photosynthetic pathway :

C3

Reproduction

The reproduction of Hemerocallis fulva is characterized by a specialized flowering cycle and biotic pollination mechanisms. The plant enters its flowering period in July, lasting through August. During this stage, the pollination syndrome is classified as biotic, specifically relying on insects for the transfer of pollen, as self-fertilization is notably absent. Following successful pollination, the plant produces fruit in the form of a capsule. These capsules are dehiscent, meaning they split open to release the seeds. The seeds produced have a consistent mass of 0.0279 g (with the mean, minimum, and maximum values all recorded at this figure), although specific measurements for seed length and width are recorded as zero in this data set. Dispersal of the seeds is categorized as anthropochorous, suggesting human-mediated movement. Notably, asexual reproduction is absent in this specific profile, indicating a reliance on sexual processes for propagation.

Dehiscence :

dehiscent

Dispersal syndrome :

anthropochorous

Flowering time :

Jul

Flowering time :

Aug

Fruit type :

capsule

Pollination syndrome :

insect

Pollination syndrome :

biotic

Reproduction asexual :

absent

Seed length mean:

0 mm

Seed mass mean:

0.0279 g

Seed width mean:

0 mm

Self fertilization :

absent

Sources: Global Inventory of Floras and Traits (GIFT)

Plant Parts

Hemerocallis fulva 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 flower.

Flower

1. Mitochondrial DNA. Part B, Resources

Chemicals

Hemerocallis fulva has 2 reported phytochemicals identified across 1 scientific publications and several other databases. The most consistently reported chemicals include Flavonoids, RUTIN.

Flavonoids

1. BMC complementary and alternative medicine

RUTIN

1. The Chinese journal of physiology

Conditions

Hemerocallis fulva has 2 reported investigations on conditions identified across 1 scientific publications and several other databases. The most consistently reported conditions include sleep, sleep quality.

Sleep

1. Psychiatry and clinical neurosciences

Sleep quality

1. The Chinese journal of physiology

Preparations

Hemerocallis fulva has 1 reported preparations identified across 1 scientific publications and several other databases. The most consistently reported preparations include Xuancaogen.

Xuancaogen

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