Grey Bur Forget-me-not

Lappula patula · Accepted scientific name

Scientific literature: Very Sparse (2 studies) · ★☆☆☆☆

Grey Bur Forget-me-not, scientifically known as Lappula patula, is a resilient annual herb belonging to the Boraginaceae family. Often recognized by its small, blue flowers and prickly, hitchhiking seeds, this plant is frequently found in disturbed soils. While primarily viewed as a common weed, it holds significant botanical interest.

Family
Boraginaceae
Native range
Europe
Parts used
Not available
Common names
Grey Bur Forget-Me-Not
Scientific synonyms
Lappula Skorpili · Lappula Subsemiglabra · 20 more

Names and Synonyms

Common Names

Scientific Names

Accepted name

Lappula patula

Synonyms

Regional and Traditional Names

German:

  • Abstehender Igelsame

French:

  • Bardanette étalée

Sources: Wikidata, Catalogue of Life

Taxonomical Classification

This plant belongs to the kingdom Plantae within the phylum Streptophyta and the class Equisetopsida. Classified under the subclass Magnoliidae and the order Boraginales, it is a member of the family Boraginaceae. Specifically, its taxonomic identity is defined by the genus Lappula.

Rank Classification
Kingdom Plantae
Phylum Streptophyta
Class Equisetopsida
Subclass Magnoliidae
Order Boraginales
Family Boraginaceae
Genus Lappula

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant exhibits a broad presence across various regions of the European continent. In Middle Europe, its distribution includes territories such as Germany and Hungary. The species can also be found within the borders of Czechia and Slovakia. Moving toward Southwestern Europe, the plant is documented in the country of France. Finally, its geographical range extends further south to include Spain.

Region Area
Middle Europe Czechia-Slovakia
Middle Europe Germany
Middle Europe Hungary
Southwestern Europe France
Southwestern Europe Spain
Southeastern Europe Bulgaria
Southeastern Europe Greece
Southeastern Europe Italy
Southeastern Europe Romania
Southeastern Europe Sicilia

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Lappula patula is characterized by its adaptability to diverse environments and a specific altitudinal distribution. This species thrives across an elevational range spanning from 800 m to 2,900 m AMSL. It is commonly found occupying various habitats, including crop fields, old fields, and ruderal sites, often colonizing disturbed ground. Additionally, it is frequently observed in proximity to rivers and in sandy substrates, demonstrating a preference for open or disturbed landscapes where it can establish itself effectively.

Elevational range max:
2900 m AMSL
Elevational range min:
800 m AMSL
Habitat :
crop fields, old fields, rivers, ruderal sites, sand

Life history

The life history of Lappula patula is characterized by an annual lifecycle, meaning the plant completes its entire developmental process from germination to seed production within a single growing season. Functionally, it is classified as a therophyte, a life form where the plant survives unfavorable environmental conditions by producing seeds that remain dormant until favorable conditions return, typically resulting in a plant that dies back completely after flowering. This life strategy allows the species to rapidly colonize disturbed or open habitats, utilizing its ephemeral growth pattern to maximize reproductive output before the onset of seasonal stress.

Life form :
therophyte
Lifecycle :
annual

Morphology

The morphology of Lappula patula is characterized by its growth form as a non-woody herb, specifically classified as a forb. This plant typically exhibits a terrestrial habitat preference, though it can exist in semiaquatic or aquatic environments. It is a self-supporting, independent organism that does not function as a parasite or an epiphyte. In terms of stature, the plant maintains a relatively low profile with a plant height ranging from a minimum of 0.1 m to a maximum of 0.3 m. Its shoot orientation is predominantly erect, and it lacks the climbing characteristics of a liana or vine, remaining a self-supporting herbaceous species.

Aquatic :
terrestrial
Climber :
self-supporting
Epiphyte :
terrestrial
Growth form :
herb
Parasite :
independent
Plant height max:
0.3 m
Plant height min:
0.1 m
Shoot orientation :
erect
Woodiness :
non-woody

Physiology

The physiology of Lappula patula is characterized by a C3 photosynthetic pathway, a mechanism common to most temperate herbaceous plants where carbon fixation occurs directly through the enzyme RuBisCO in the mesophyll cells. This metabolic process involves the initial fixation of atmospheric CO2 into a three-carbon molecule, facilitating the production of carbohydrates necessary for growth and development within its natural habitats. The plant's physiological efficiency is closely tied to its ability to manage transpiration and gas exchange through its stomatal regulation, balancing the intake of carbon dioxide with the prevention of excessive water loss. As a C3 plant, its metabolic rate and carbon assimilation efficiency are highly sensitive to environmental variables such as light intensity, ambient temperature, and water availability, which dictate its overall energy budget and biomass accumulation.

Photosynthetic pathway :
C3

Reproduction

The reproduction of Lappula patula is characterized by sexual reproduction via bisexual flowers. The flowering period typically begins in April and extends through June, though the timing can be variable. The inflorescence is quite compact, measuring between 0.02 m and 0.023 m in length. Following pollination, the plant produces small fruits that range in length from a minimum of 0.3 cm to a maximum of 0.4 cm, with an average fruit length of 0.325 cm. The seeds produced are extremely fine, with a mean mass of 0.001055 g, falling within a range of 0.00066 g to a maximum of 0.00145 g.

Flowering time :
Apr
Flowering time :
Jun
Fruit length max:
0.4 cm
Fruit length mean:
0.325 cm
Fruit length min:
0.3 cm
Inflorescence length max:
0.023 m
Inflorescence length min:
0.02 m
Reproduction sexual :
bisexual
Seed mass max:
0.00145 g
Seed mass mean:
0.001055 g
Seed mass min:
0.00066 g

Sources: Global Inventory of Floras and Traits (GIFT)

Activities

Lappula patula has 1 reported activities identified across 0 scientific publications and several other databases. The most consistently reported activities include Cytotoxic.

Activities reported in Lappula patula
Activity Supporting sources Consensus
Cytotoxic 1 supporting sources ★☆☆☆☆

Cytotoxic

  1. Pharmaceuticals (Basel, Switzerland)

Conditions

Lappula patula has 1 reported investigations on conditions identified across 0 scientific publications and several other databases. The most consistently reported conditions include cancer.

Conditions investigated for Lappula patula
Condition Supporting sources Consensus
Cancer 1 supporting sources ★☆☆☆☆

Cancer

  1. Pharmaceuticals (Basel, Switzerland)

Preparations

Lappula patula has 1 reported preparations identified across 0 scientific publications and several other databases. The most consistently reported preparations include extracts.

Preparations reported for Lappula patula
Preparation Supporting sources Consensus
Extracts 1 supporting sources ★☆☆☆☆

Extracts

  1. Pharmaceuticals (Basel, Switzerland)