Asplenium: From the Greek a- 'without' and splene 'spleen', a northern hemisphere species, the black spleenwort (Asplenium adiantum-nigrum), was once believed to be a cure for diseases of the spleen.
oblongifolium: oblong leaves
2012 - Not Threatened
Conservation status of New Zealand indigenous vascular plants, 2012
The conservation status of all known New Zealand vascular plant taxa at the rank of species and below were reassessed in 2012 using the New Zealand Threat Classification System (NZTCS). This report includes a statistical summary and brief notes on changes since 2009 and replaces all previous NZTCS lists for vascular plants. Authors: Peter J. de Lange, Jeremy R. Rolfe, Paul D. Champion, Shannel P. Courtney, Peter B. Heenan, John W. Barkla, Ewen K. Cameron, David A. Norton and Rodney A. Hitchmough. File size: 792KB
Previous Threat Status
2009 - Not Threatened
2004 - Not Threatened
Asplenium oblongifolium Colenso
Vascular - Native
Asplenium lucidum G.Forst.; Asplenium lucidum var. paucifolium Hook.; Asplenium obtusatum var. integrifolium Szyszyl. in Wawra; Asplenium obtusatum var. lucidum (G.Forst.) Hook. et Baker; Asplenium durvillei Mett. in Kuhn; Tarachia lucida (G.Forst.) Momose
Endemic. New Zealand: Kermadec, Three Kings, North, South, and Chatham Islands. In the South Island known from the Marlborough sounds south to Hokitika and Banks Peninsula
Coastal to montane (but mostly found within coastal and lowland areas). Occupying a diverse range of habitats from coastal cliffs and rock stacks to deep forest where it may be an epiphyte or grow on the ground.
Rhizome stout, often forming a hard woody mass above ground, bearing pale brown, shiny, ovate, acuminate scales up to 30 × 7 mm. Stipes 80-200 mm long, dark brown, stout, densely covered in narrow scales with very long filiform apices. Laminae oblong to elliptic, 0.18-1.00 m long, 100-350 mm wide, dark green and glossy above, pinnate. Rachis brown below, green above, stout, slightly ridged, scaly. Pinnae 4-15 pairs, lanceolate to narrowly oblong or ovate, acuminate, crenate-serrate to ± entire, cuneate at base, 40-150 × 10-30 mm, frequently covered in very small hair-like scales on the underside. Sori up to 20 mm long, not reaching lamina edge.
Often confused with Asplenium obtusatum G.Forst. for which it is distinguished by the rachis and foliar scales which have very long hair-like apices, and by the pinnae which are firm (usually not thick and fleshy), glossy above, and acuminate to ± acute. Some forms of A. oblongifolium found on rock stacks along the west coast of the North Island (from about Kawhia south) would repay further investigation was these have distinctly dull, rather coriaceous, fleshy, fronds, and broader rachis and foliar scales, thus intergrading somewhat with A. obtusatum. These features are retained in cultivation.
Not applicable - spore producing
Not applicable - spore producing
Easily grown though often rather slow to establish. An attractive and popular plant widely used for mass plantings in shaded sites. An excellent pot plant. Be vigilant for scale and mealy bug infestations which are a bane to the cultivation of all New Zealand asplenia.
2n = 144
Where To Buy
Can be purchased from Oratia Native Plant Nurseries (firstname.lastname@example.org). Commonly available from plant and specialist native plant nurseries.
Description from: Brownsey, P.J. 1977: A taxonomic revision of the New Zealand species of Asplenium. New Zealand Journal of Botany 15: 39-86.
This page last updated on 5 Oct 2012