Hieracium pilosella

Pilosella officinarum

Mouse-ear Hawkweed

Mouse-ear hawkweed is a perennial plant characterized by its hairy, glandular leaves and stems. It features a basal rosette of leaves that are entire, acute to blunt, and range from 1–12 cm long. The flowering stem can grow between 5–50 cm tall and bears single, pale lemon-yellow flowerheads. The plant is known for its allelopathic properties, inhibiting the growth of other plants through root secretions.

Details

Order:

Asterales

Family:

Asteraceae

Genus:

Pilosella

Chemistry:

The plant contains umbelliferone, a compound similar to coumarin. It produces triterpenoids, including taraxasterol, alpha- and beta-amyrin, taraxerol, and fern-7en-3beta-ol. These compounds contribute to its medicinal properties.

Uses:

Mouse-ear hawkweed has been used in folk medicine. It is also known for its allelopathic properties, which can be useful in controlling other plant species. In some regions, it has been used recreationally as a cannabis substitute.

Flowering time:

May to August

Sowing time:

Plant height:

5–50 cm

Flower color:

Pale lemon-yellow

Suitable habitat:

Dry, sunny areas with sandy or less fertile soil

Info

Pannon Flora Ltd. was founded on December 13, 1999, by Gábor Janik, who retains 95% ownership. Janik holds an MSc in Horticulture from the University of Horticultural Sciences (1986) and an Advanced Professional English Certification from the College of International Trade (1990). The company specializes in bird feed production and export, primarily serving markets in Italy, Germany, the Netherlands, and the UK, alongside cultivating and distributing imported/exported horticultural seeds. It maintains exclusive partnerships with JOEUN Seed (South Korea) and Takii Europe (Japan), a leader in professional seed breeding and production. Pannon Flora collaborates with certification bodies such as NÉBIH (National Food Chain Safety Office), MERT Kontroll, and SGS Hungary to ensure compliance and quality. The company works with approximately 400 Hungarian growers, ranging from small-scale producers (under 5 hectares) to mid-sized farms and large-scale agricultural enterprises. This profile emphasizes agribusiness expertise, technical partnerships, and operational scalability tailored to international client needs.

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