Polygonum persicaria

Persicaria maculosa Gray

Persicaria maculosa

Persicaria maculosa, commonly known as lady's thumb or spotted lady's thumb, is an annual herbaceous plant that can grow up to 1 meter tall. It has erect, somewhat floppy stems with swollen joints and alternate, almost stalkless leaves that often have a brown or black spot in the center. The inflorescence is a dense spike of tiny pink flowers, each with four or five lobes fused near the base. The fruit is a shiny black, three-edged achene.

Details

Order:

Caryophyllales

Family:

Polygonaceae

Genus:

Persicaria

Chemistry:

Persicaria maculosa contains persicarin and tannins. Persicarin is a phenolic compound, while tannins are astringent, polyphenolic biomolecules.

Uses:

The young leaves of Persicaria maculosa can be eaten as a leaf vegetable. It is also known to produce a yellow dye when alum is used as a mordant.

Flowering time:

June to September

Sowing time:

Plant height:

0.5-1 meter

Flower color:

Pink

Suitable habitat:

Moist soils, particularly rich ones, and acid peaty loams. It is often found along roadsides, riverbanks, and on fallow ground.

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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