Creeping Lettuce

Kingdom	Order	Family	Genus	Species
Plantae	Asterales	Asteraceae	Ixeris	Ixeris stolonifera

Plant Type: Perennial herb.
Color: Yellow
Flower Dimensions: 0.4 to 0.7 inches in diameter.
Blooming Season: Spring (April to June).
Places in Japan with Creeping Lettuce: Very widespread in open mountain slopes, Mount Oyama, Isehara, and Kanagawa.

The creeping lettuce is a flowering plant of the Asteraceae family. It is a widespread species in Japan. Being perennial, this plant grows to 0.2 meters by 0.5 meters. Ixeris Stolonifera

The leaf blade of the creeping lettuce measures 5-30+ by 5-30+ mm. It has retrorse teeth near the bases.

There are 18-29 flowers on the head. The is ligulate and yellow.

The creeping lettuce plants are and are pollinated mainly by insects.

Ixeris stolonifera prefers moist soil and grows well in semi-shade or no shade.

Ixeris stolonifera is often confused with Ixeris japonica because they almost look the same. However, I. stolonifera has smaller flowers and fruits. Ovate- orbicular leaves are also more in the I. stolonifera species.

Interesting Facts of Creeping Lettuce

Ixeris stolonifera^[1] means “to bound the ground and comes from this sight“. The stem of the Creeping lettuce reaches out and splits with the ground.

The Japanese name of Ixeris stolonifera is Jishibari which means “to bound the ground”. This is because the stem of the Creeping lettuce reaches out and splits with the ground.

Comparative studies^[2] indicate that I. japonica is an auto-hexaploid derived from I. stolonifera. However, the two species have many morphological similarities.

Researchers discovered that the essential oil of I. stolonifera^[3] has 97 volatile flavor components.

Many plantsmen considered I. stolonifera^[4] species a noxious weed because it spreads like lightning by stolons and displaces the vegetation.

A study^[5] indicates that I. stolonifera and I. repens are closely related species based on the chromosomes and karyotype. However, the I. repens is more primitive than I. stolonifera.

Suggested Reading: Flower Species Names | Yellow MumsCite This Page

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BioExplorer.net. (2024, December 08). Creeping Lettuce. Bio Explorer. https://www.bioexplorer.net/plants/flowers/creeping-lettuce/.

BioExplorer.net. "Creeping Lettuce" Bio Explorer, 08 December 2024, https://www.bioexplorer.net/plants/flowers/creeping-lettuce/.

BioExplorer.net. "Creeping Lettuce" Bio Explorer, December 08 2024. https://www.bioexplorer.net/plants/flowers/creeping-lettuce/.

Key References

^[1] – “20 Flowers That Are Endemic Species in Japan | tsunagu Japan”. Accessed June 06, 2022. Link.
^[2] – “Comparative studies on Ixeris stolonifera and Ixeris japonica” by Takemoto, T. Accessed June 06, 2022. Link.
^[3] – “GC-MS Analyses of the Essential Oils from Ixeris dentate(Thunb.) Nakai and I. stolonifera A. Gray-The Korean Journal of Food And Nutrition | Korea Science”. Accessed June 06, 2022. Link.
^[4] – “Nightmare Plants: Garden Mistakes That Haunt Us | Julie Moir Messervy Design Studio”. Accessed June 06, 2022. Link.
^[5] – “A cytotaxonomic study on genus Izeris in Korea”. Accessed June 06, 2022. Link.

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