Ischaemum impressum Hack., Monogr. Phan. 6: 210 1889.;
 


Annual herbs; culms tufted, branched, 40-60 cm tall; nodes glabrous. Leaves: sheaths 8-9 cm long, subcompressed, glabrous, slipping from the culms; ligule membranous, oblong, 2-2.5 mm long; lower leaves petiolate, acute; lamina flat, lanceolate, 6-10 x 0.5-1.3 cm, narrowed at base, acute at apex, margin scabrid; petiole absent. Racemes 2, appressed to each other and appears solitary; rachis clavate, 4-5 mm long, hispid along the margin; callus short, beared. Seesile spikelet oblong-lanceolate, 5.5-6.5 mm long awned; lower glumes 5.5-5.8 mm long, chartaceous below, membranous above, oblong-lanceolate, with a projection in lower region and two semilunar depression above it, 7-11 nerved; nerves apically distinct, inconspicuous below, often interconnected; keels 2, winged narrowly at apex; margin inflexed from base to apex; apex bi-aristate, glabrous; upper glumes 5.5-6 mm long, firmly membranous, compressed, boat shaped, 2-4 nerved, keeled, apically winged with a tuft of hairs below the wing; acute-aristate at apex; lower lemma hyaline, oblong-lanceolate, 4.8-5 mm long, 3-nerved, muticous; palea hyaline, oblong-lanceolate, 3-3.5 mm long. Lodicule 2. Stamens 3. Lodicules 2. Stamens 3. Ovary oblong; style 3, stigma feathery. Pedicelled spikelet oblong-lanceolate, 5-5.5 mm long; pedicels triquetrous, hairy at margins, 3.3-4 mm; lower glumes chartaceous, winged at one side, apex muticous, 5 – 5.3 mm long, 2-keeled, 9-11 nerved; upper glumes thin membranous, boat shaped, 4-4.8 mm long, 3-nerved, acute at apex; lemma hyaline oblong-lanceolate, 3.8-4 mm long; palea reduced.

Flowering and fruiting: September-December
Grasslands
State – Kerala, District/s: Wayanad
 
 
 
 
 


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Poaceae, Cyperaceae and Juncaceae Week: Poaceae- Wild wheat from STR (nsd-1) : 1 image. 4 posts by 3 authors.

This plant is called wild wheat in M.P.
I saw this plant only in some area of Satpura Tiger Reserve.
I thought this is also an Aegilops tauschii Coss syn Triticum aegilops, but it looks different form the plant posted by ... please validate.


This is Ischaemum impressum. It looks like a solitary spike, but actually it is two racemes which are closely adpressed together. With some force, you can easily separate the two racemes.


I have some more pix of Ischaemum, I will post them to get identified properly.


 
 
 
 
 

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