Schoenoplectiella lineolata (Franch. & Sav.) J.Jung & H.K.Choi APNI* Synonyms: Schoenoplectus lineolatus (Franch. & Sav.) T.Koyama APNI*
Scirpus forsythii Kük. APNI*
Description: Small perennial, with long rhizome. Culms solitary at distant nodes of rhizome, terete, to 35 cm high, 0.8–1.2 mm diam.
Leaves reduced.
Inflorescence a single spikelet or cluster of 2 or 3 spikelets; involucral bract to 5 cm long. Spikelets ± oblong-ovoid, acute, 7–10 mm long, 2.5–3.5 mm diam. Glumes obtuse, shortly mucronate, 3.8–4.5 mm long, striate, glabrous, pale yellow-brown to pale red-brown. Style 2-fid. Hypogynous bristles 4 or 5, retrorsely scabrous, slightly longer than to twice as long as nut, or absent.
Nut obovoid to ellipsoid, plano-convex, 1.7–2.2 mm long, dark brown, shining, smooth or slightly wrinkled.
Flowering: spring–summer.
Distribution and occurrence: Rarely collected, recently only at Manly Reservoir, beside the Namoi River in Warrabah National Park and Grahamstown Reservoir near Raymond Terrace. Native of Japan & Taiwan; possibly distributed by migrating waterbirds. Grows in swampy areas.
NSW subdivisions: *NC, *CC, *NWS
Other Australian states: *Vic.
Inflorescences can develop on plants submerged in water-bodies but need to be emergent for flowers to be pollinated and seed to be set (Ishii & Kadono (2004) Limnology 5: 1-6).
Text by K. L. Wilson (1993); edited KL Wilson (April 2014; Nov 2015; Oct 2018)
Taxon concept: Flora of NSW 4 (1993) as Schoenoplectus lineolatus
APNI* Provides a link to the Australian Plant Name Index (hosted by the Australian National Botanic Gardens) for comprehensive bibliographic data
***The AVH map option provides a detailed interactive Australia wide distribution map drawn from collections held by all major Australian herbaria participating in the Australian Virtual Herbarium project.
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