Western black spleenwort - Asplenium onopteris (Taxonomy, Characteristics, Distribution, Images)

Western black spleenwort

Also known as: Irish spleenwort

The plant with red-brown stem reaches a stature height of 10 to 50 cm. The blade of the fronds are leathery and dark green shiny. In outline they are triangular-ovate and 2-4fold pinnate. The Fiederenden are extended (skipped) and curved towards the Spreitenspitze. The Spreitabschnitte are perforated spiny pointed.

Scientific classification

Species

Western black spleenwort (Asplenium onopteris)

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Perennial

Lifespan

Fern

Plant Type

20 cm to 40 cm

Plant Height

Images of Western black spleenwort

Distribution of Western black spleenwort

Distribution Map

Western black spleenwort is naturally distributed across the Mediterranean basin and parts of the Middle East. Its presence extends to the broader regions of Southern Europe and the Atlantic coast, while also being found in scattered locations across the continent's temperate zones. Uniquely adapted to its native habitats, western black spleenwort continues to thrive without being widely reported as introduced or cultivated in distant regions.

Native

Cultivated

Invasive

Introduced

No species reported

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Habitat

Dry rocks, forests

Hemisphere Trend Curve

Northern

Sorthern

Care Guide for Western black spleenwort

Twice per week

Water

Full shade

Sunlight

5 - 41 ℃

Ideal Temperature

Water: Western black spleenwort flourishes in moderate moisture conditions, requiring consistently damp soil without waterlogging. Water twice weekly and maintain higher humidity through misting or pebble trays. Commonly grown indoors, western black spleenwort appreciates balanced moisture for optimal growth and ornamental beauty.

Fertilize: For optimal growth, western black spleenwort requires high-nitrogen fertilizers every 4-6 weeks during active growth. Use a diluted solution to prevent root burn, reducing frequency in dormant seasons. Follow manufacturer dosing instructions to support healthy fronds and plant vigor, avoiding overfeeding to protect delicate roots.

Pruning: Western black spleenwort features delicate, dark green fronds and thrives with early spring pruning. Remove dead leaves and overcrowded fronds to boost growth and air circulation, enhancing vitality while maintaining its natural form. This practice reduces disease risk, supporting overall robust development.

Propagation: Western black spleenwort is best propagated through division. Uplift mature plants with minimal root disturbance, dividing clumps into sections with roots and fronds. Replant in moisture-retentive, well-draining soil in a shaded environment. Maintain consistent moisture and handle gently to support establishment.

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Learn More About Western black spleenwort

Sunlight Requirements

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