HerbWildAnnualMedicinal

Pseudoconyza viscosa (Mill.) D'Arcy

Synonyms: Erigeron viscosus Mill.; Conyza viscosa (Mill.) Greuter

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Description

Pseudoconyza viscosa is an aromatic annual or short-lived perennial herb, usually 30–100 cm tall. Stems are erect, much-branched, and densely covered with sticky glandular hairs. Leaves are alternate, narrowly lanceolate, sessile, and sticky to the touch, with entire or slightly toothed margins. Numerous small cylindrical flower heads are arranged in terminal panicles. Ray florets are very short, white to pale cream, while disc florets are yellow. Fruits are narrow ribbed achenes crowned with a white pappus.

Diagnostic Characters

Vegetative

Sticky glandular stems and leaves with a strong aromatic odor.

Floral

Numerous small cylindrical flower heads in branched terminal panicles.

Fruit & Seed

Ribbed achenes with a conspicuous white pappus.

Distribution

Native range: Mediterranean region and western Asia.

In Pakistan: Occurs in Pakistan, particularly in dry disturbed habitats and cultivated areas.

Phenology

Flowering

Fruiting

Flowering: April–September Fruiting: May–October

Ethnobotany & Uses

Uses

Used locally in traditional medicine for treating wounds, minor infections, and inflammatory conditions. Aromatic foliage contains essential oils with reported antimicrobial properties. Occasionally behaves as a weed in cultivated fields.

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Where it grows on campus

North-North-West Campus1

individuals mapped across 1 zone

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Taxonomic Notes

Formerly placed in the genera Conyza and Erigeron, this species is now recognized as Pseudoconyza viscosa based on modern taxonomic evidence. It is distinguished by its sticky glandular foliage, aromatic odor, and numerous small capitula. The species is accepted by Flora of Pakistan, Plants of the World Online (POWO), and World Flora Online (WFO).