| 1 |
Plants laxly tufted |
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(2) |
| + |
Plants ± densely tufted |
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(7) |
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| 2 (1) |
Spikelets usually 2 per node in proximal part of spike, 1 per node in distal part. |
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1 K. geminata |
| + |
Spikelets 1 per node throughout spike |
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(3) |
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| 3 (2) |
Glumes slightly asymmetric, midvein raised, forming keel from base to apex, often ciliate. |
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6 K. habahenensis |
| + |
Glumes ovate, ovate-lanceolate, or oblong-lanceolate, midvein slightly raised, not forming keel |
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(4) |
| |
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| 4 (3) |
Glumes equaling first lemma or distal glume slightly longer. |
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2 K. grandiglumis |
| + |
Glumes shorter than first lemma |
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(5) |
| |
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| 5 (4) |
Glumes oblong-lanceolate; lemma densely pubescent. |
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5 K. melanthera |
| + |
Glumes ovate or ovate-lanceolate; lemma laxly puberulent or densely hirsute |
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(6) |
| |
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| 6 (5) |
Palea equaling or slightly longer than lemma; lemma laxly puberulent. |
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3 K. rigidula |
| + |
Palea shorter than lemma; lemma densely hirsute. |
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4 K. eremopyroides |
| |
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|
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| 7 (1) |
Spike lax, rachis internodes (4–)5–10(–15) mm |
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(8) |
| + |
Spike dense, rachis internodes 1–5(–7) mm |
|
(16) |
| |
|
|
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| 8 (7) |
Spike rachis densely pubescent |
|
(9) |
| + |
Spike rachis glabrous, scabrous, or sparsely puberulent |
|
(10) |
| |
|
|
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| 9 (8) |
Glumes oblong, subequal, 6.7–7.5 mm, hirsute along veins. |
|
7 K. gobicola |
| + |
Glumes lanceolate, unequal, proximal one 4.5–6 mm, distal one 5.5–7 mm, both scabrous along veins. |
|
8 K. pendula |
| |
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|
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| 10 (8) |
Rachis puberulent throughout, pilosulose only distally, or puberulent |
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(11) |
| + |
Rachis glabrous or margin ciliate |
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(13) |
| |
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|
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| 11 (10) |
Rachis puberulent throughout; glumes white pilose; lemma awn 10–15 mm. |
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11 K. tahelacana |
| + |
Rachis pilosulose only distally or puberulent; glumes glabrous; lemma awn 1–3 mm |
|
(12) |
| |
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| 12 (11) |
Spikelets 16–22 mm, with 6–9 florets. |
|
9 K. laxiflora |
| + |
Spikelets 10–12 mm, with 3–5 florets. |
|
10 K. laxistachya |
| |
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|
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| 13 (10) |
Glumes oblong-lanceolate, 1–3(–5)-veined, anthers yellow or nearly black |
|
(14) |
| + |
Glumes oblong or ovate-lanceolate, 4–6-veined, anthers yellow |
|
(15) |
| |
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| 14 (13) |
Lemma laxly or distally densely hirsute; anthers nearly black. |
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14 K. stenachyra |
| + |
Lemma densely pubescent; anthers yellow. |
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15 K. shawanensis |
| |
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|
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| 15 (13) |
Lemma densely villous; anthers 3.5–4 mm. |
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12 K. zhaosuensis |
| + |
Lemma scabrous or sparsely spinose; anthers 1.4–1.8 mm. |
|
13 K. hejingensis |
| |
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|
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| 16 (7) |
Glumes glabrous, puberulent, or only scabrous or ciliate along midvein |
|
(17) |
| + |
Glumes densely hirsute, villous, or hirsutulous, rarely scabrous and then lemma awn 5–7 mm |
|
(20) |
| |
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| 17 (16) |
Lemma awnless; palea usually slightly longer than lemma. |
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16 K. mutica |
| + |
Lemma awn 2–11 mm; palea usually shorter than lemma |
|
(18) |
| |
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| 18 (17) |
Lemma awn usually recurved, 7–11 mm. |
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19 K. kaschgarica |
| + |
Lemma awn usually straight or slightly reflexed, 2–6 mm |
|
(19) |
| |
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| 19 (18) |
Glumes ovate-oblong, 3- or 4-veined. |
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17 K. hirsuta |
| + |
Glumes lanceolate, 5-veined. |
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18 K. alatavica |
| |
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| 20 (16) |
Spike rachis glabrous, if puberulent or villous then culms less than 50 cm tall |
|
(21) |
| + |
Spike rachis densely hairy |
|
(22) |
| |
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| 21 (20) |
Anthers black; lemma awn 1–7 mm; glumes oblong-lanceolate. |
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20 K. thoroldiana |
| + |
Anthers yellow or purple; lemma awn 10–13 mm; glumes oblong-ovate or ovate-lanceolate. |
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21 K. batalinii |
| |
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| 22 (20) |
Culms 60–70 cm tall; spike slightly secund. |
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24 K. pamirica |
| + |
Culms 12–50 cm tall; spike clearly distichous |
|
(23) |
| |
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| 23 (22) |
Lemma densely white hairy (hairs ca. 1 mm), awn 1.5–4 mm; anthers yellow, ca. 3 mm. |
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22 K. guidenensis |
| + |
Lemma densely hirsute, awn 4–6 mm; anthers yellowish black, 2–2.2 mm. |
|
23 K. kokonorica |
