Flora of New Zealand Series

≡Deyeuxia forsteri var. littoralis Hack. in Cheeseman Man. N.Z. Fl. 869  (1906) comb. illeg., varietal epithet legit.

≡Lachnagrostis filiformis var. littoralis (Hack.) Zotov, Rec. Dom. Mus. 5: 142 (1965); 

Lectotype: W 7916! R. H. Shakespear Kermadec Islands, N. E. from New Zealand (No 1136 to Hackel) (designated by Edgar 1995 op. cit. p. 23).

Usually dense, light or greyish green, or glaucous, annual tufts; branching intravaginal. Leaf-sheath finely striate. Ligule oblong, tapered, subobtuse or denticulate, or later lacerate. Leaf-blade firm, abaxially smooth or minutely papillose, sometimes scabrid above, adaxially minutely scabrid on ribs; margins minutely scabrid, tip acute to subobtuse. Culm included within leaf-sheaths, internodes very finely scabrid below panicle, rarely visible until culm breaks up at maturity. Panicle delicate, ± contracted, later spreading, enclosed at base by sheath of uppermost culm-leaf; branches and branchlets ± erect, all ± equal in length, scabrid, naked for much of their length, the ultimate branchlets tipped by 1-2 spikelets. Spikelets light green or greenish brown. Glumes smooth, keel scabrid, margins hyaline, finely scabrid above. Lemma to ¾ length of glumes, 5-nerved, with scattered to rather dense short silky hairs, often glabrous above, lateral nerves shortly excurrent, faintly scabrid; awn ± middorsal. Palea slightly < lemma, keels minutely excurrent, faintly scabrid at tip. Callus hairs dense, very short, to ⅕ length of lemma. Rachilla prolongation almost 0, or very short and tipped by a longer hair tuft. Lodicules linear, acute.