Launaea procumbens

Names and Synonyms

Scientific Names

Accepted name

Synonyms

• Launaea obtusa
• Lactuca obtusa
• Ammoseris patens
• Zollikoferia leucodon
• Microrhynchus arabicus
• Microrhynchus fallax
• Rhabdotheca sonchoides
• Microrhynchus patens
• Lactuca flava
• Sonchus lakouensis
• Sonchus leucodon
• Brachyramphus obtusus
• Youngia alashanica
• Youngia procumbens
• Zollikoferia fallax
• Paramicrorhynchus procumbens
• Prenanthes procumbens
• Scorzonera dichotoma

Sources: Wikidata

Taxonomical Classification

This plant belongs to the kingdom Plantae and is classified under the phylum Streptophyta within the class Equisetopsida. It falls under the subclass Magnoliidae and the order Asterales, specifically being a member of the family Asteraceae. Finally, it is identified by the genus Launaea.

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant exhibits a specific geographical range that spans across parts of North Africa and Central Asia. In Northern Africa, its presence is documented within the borders of Egypt. Moving into Central Asia, the species is found across the vast landscapes of Kazakhstan. It also inhabits the territories of Turkmenistan and Uzbekistan within the same central region. Finally, the distribution extends further into the mountainous areas of Tajikistan.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Launaea procumbens is characterized by its ability to thrive in diverse and often challenging environments, ranging from disturbed landscapes to specific aquatic-adjacent zones. It is commonly found inhabiting crop fields, oases, riverbanks, roadsides, and even saline places, demonstrating a notable adaptability to varying soil moisture levels and salinity. In terms of vertical distribution, the species occupies a specific altitudinal niche, with an elevational range spanning from a minimum of 500 m AMSL to a maximum of 1200 m AMSL.

Elevational range max:

1200 m AMSL

Elevational range min:

500 m AMSL

Habitat :

crop fields, oasis, rivers, roadsides, saline places

Life history

The life history of Launaea procumbens is characterized by a perennial lifecycle, allowing the plant to persist through multiple growing seasons rather than completing its cycle within a single year. In terms of its structural life form, it is classified as a therophyte, meaning it primarily completes its development through a seasonal strategy that often involves surviving unfavorable conditions as seeds or through specific dormant stages. This growth habit aligns with its categorization as a therophyte across different classification frameworks, defining its survival strategy and physical presence within its ecological niche.

Life form :

therophyte

Lifecycle :

perennial

Morphology

The morphology of Launea procumbens is characterized by its growth form as a non-woody herb, existing primarily as a small-statured, self-supporting herb. It exhibits a growth habit that ranges from terrestrial to semiaquatic environments, though it is fundamentally classified as a terrestrial organism rather than an aquatic or epiphytic species. The plant maintains a compact stature, with a height typically ranging from a minimum of 0.1 m to a maximum of 0.5 m. As an independent species, it does not exhibit parasitic behavior, growing autonomously within its ecological niche.

Aquatic :

terrestrial

Climber :

self-supporting

Epiphyte :

terrestrial

Growth form :

herb

Parasite :

independent

Plant height max:

0.5 m

Plant height min:

0.1 m

Woodiness :

non-woody

Physiology

The physiological characteristics of the foliage in Launaeopsis procumbens are defined by specific morphological dimensions that facilitate its vegetative functions. The leaves exhibit a measurable range of development, with leaf lengths typically averaging 6 cm, though they can fluctuate between a minimum of 5 cm and a maximum of 7 cm. Complementing this longitudinal variation, the leaf width demonstrates a consistent structural profile, maintaining a mean width of 2.5 cm. These width measurements oscillate within a specific physiological threshold, ranging from a minimum of 2 cm to a maximum of 3 cm. Together, these dimensional parameters reflect the plant's growth patterns and its structural adaptation for optimal surface area management.

Leaf length max:

7 cm

Leaf length mean:

6 cm

Leaf length min:

5 cm

Leaf width max:

3 cm

Leaf width mean:

2.5 cm

Leaf width min:

2 cm

Reproduction

The reproduction of Launaea procumbens is characterized by a flexible flowering period that can occur throughout the year, though specific seasonal observations indicate a flowering cycle that can begin as early as March and extend through April, remaining highly variable across different environmental conditions. Following pollination, the plant produces small fruits with specific morphological dimensions. The fruit length is relatively minute, ranging from a minimum of 0.2 cm to a maximum of 0.3 cm, with an average length of approximately 0.25 cm. In terms of width, the fruits are consistently narrow, maintaining a minimum, mean, and maximum width of 0.1 cm.

Flowering time :

Mar

Flowering time :

Apr

Fruit length max:

0.3 cm

Fruit length mean:

0.25 cm

Fruit length min:

0.2 cm

Fruit width max:

0.1 cm

Sources: Global Inventory of Floras and Traits (GIFT)

Plant Parts

Launaea procumbens 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 leaf.

Leaf

1. Pharmacognosy magazine

Chemicals

Launaea procumbens has 4 reported phytochemicals identified across 1 scientific publications and several other databases. The most consistently reported chemicals include 1-H-imidazole, Lupeol, butanol, water.

1-H-imidazole

1. Pharmacognosy magazine

Lupeol

1. Pharmacognosy magazine

butanol

1. Pharmacognosy magazine

water

1. Pharmacognosy magazine

Medicinal Uses

Launaea procumbens has 7 reported medicinal uses identified across 1 scientific publications and several other databases. The most consistently reported uses include eye diseases, kidney, liver dysfunctions, oxidative damage, oxidative stress.

Most Reported Uses

Preparations