|
Sheaths
|
2−7 cm long and with purple vertical stripes |
basal ones dark brown disintegrating into fibers, upper ones slightly scabrous on the margin |
|
Bracts
|
sparsely hispid and with ca. 1 cm long sheaths |
glabrous, sheathless |
|
Inflorescence
|
spikes 4 and occasionally 1 lateral spike arising from the culm base |
spikes 4−7 |
|
Spikes
|
terminal spike ca. 2.5 cm long; lateral spikes 2−3.5 cm long |
terminal spike 3.5−5 cm long; lateral spikes 3−5 cm long |
|
Glumes
|
staminate glumes narrowly ovate; pistillate glumes triangular-lanceolate, 5−7 mm long, green 1-veined, costa excurrent into a short awn ca. 2 mm long |
staminate glumes lanceolate; pistillate glumes lanceolate, ca. 4 mm long, 3-veined, costa excurrent into a scabrous mucro at sharp apex |
|
Perigynia
|
6−8 mm; densely hispid |
4−5 mm; sparsely hispid |
|
Nutlets
|
rhombic-ovoid, with angles constricted at the middle, base shortly stipitate, apex abruptly contracted into an erect short beak and not expanding into an annulate orifice; epidermal cells with irregularly 4-5-gonal, central no silica body |
ovate-elliptic with angles constricted above, apical beak short, curved, expanding into an annulate orifice; epidermal cells with irregularly 5-6-gonal, central with 1 silica body |
