Schizaea bifida
Common name
forked comb fern
Synonyms
Acrostichum bifida (Willd.) Poir
Family
Schizaeaceae
Flora category
Vascular – Native
Endemic taxon
No
Endemic genus
No
Endemic family
No
Structural class
Ferns
NVS code
The National Vegetation Survey (NVS) Databank is a physical archive and electronic databank containing records of over 94,000 vegetation survey plots - including data from over 19,000 permanent plots. NVS maintains a standard set of species code abbreviations that correspond to standard scientific plant names from the Ngä Tipu o Aotearoa - New Zealand Plants database.
SCHBIF
Chromosome number
2n = 154
Current conservation status
The conservation status of all known New Zealand vascular plant taxa at the rank of species and below were reassessed in 2017 using the New Zealand Threat Classification System (NZTCS). This report includes a statistical summary and brief notes on changes since 2012 and replaces all previous NZTCS lists for vascular plants. Authors: By Peter J. de Lange, Jeremy R. Rolfe, John W. Barkla, Shannel P. Courtney, Paul D. Champion, Leon R. Perrie, Sarah M. Beadel, Kerry A. Ford, Ilse Breitwieser, Ines Schönberger, Rowan Hindmarsh-Walls, Peter B. Heenan and Kate Ladley.
2012 | Not Threatened
Previous conservation statuses
2009 | Not Threatened
2004 | Not Threatened
Distribution
Indigenous. New Zealand: North Island (Te Paki to Lake Taupo and East Cape, Wellington), South Island (North-West Nelson to Westport). Also Australia and New Caledonia.
Habitat
Coastal to montane - mostly in open clay pans and shrubland (especially gumland scrub). Often in drought prone habitats. However, on occasion Schizaea bifida has also been collected from restiad peat bogs. It is also locally common in geothermal areas where it grows amongst moss and in open shrubland.
Features
Rhizomatous, tufted fern. Rhizome short-creeping, densely clothed with glossy pale to dark brown hairs. Fronds clustered, erect, 70-550 mm long, 0.6-1.2 mm wide, subterete, furrowed on 1 side or flattened, smooth to scabrid, undivided or dichtomously divided 1 or more times, pubescent at first, becoming smooth or scabrid; sterile fronds shorter and more divided than sporogenous ones or, more rarely, absent; sporogenous heads ovate-triangular to obliquely oblong, 5-30 mm long, 2-4x longer than broad, broadest near the base, tapering distally, often recurved; segments 5-12 mm long, smooth to scabrid; margins with long, brown hairs. Sporangia mixed with pale brown hairs. Description from Chinnock (1998)
Similar taxa
Undivided forms of Schizaea bifida are distinguished from Microschizaea fistulosa (with which it often grows) by the sporogenous heads which are glabrous, and which are shorter and broader, with the lower most pair of segments the longest. Divided forms of Schizaea bifida are easily distinguished from S. dichotoma by the sterile and fertile frond segments not arranged in a fan-shape.
Flowering
N.A.
Flower colours
No flowers
Fruiting
N.A.
Propagation technique
Difficult - should not be removed from the wild
Where To Buy
Not commercially available
Attribution
Fact sheet prepared for NZPCN by P.J. de Lange 14 March 2011.
References and further reading
Chinnock, R.J. 1998: Schizaeaceae. Flora of Australia 48: 177-187.
NZPCN Fact Sheet citation
Please cite as: de Lange, P.J. (Year at time of access): Schizaea bifida Fact Sheet (content continuously updated). New Zealand Plant Conservation Network. https://www.nzpcn.org.nz/flora/species/schizaea-bifida/ (Date website was queried)