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beautiful glyceria, graceful mannagrass, Mackenzie Valley mannagrass, slender mannagrass

Habit Plants perennial.
Culms

40-60 cm tall, 1.5-5 mm thick, erect.

Sheaths

scabridulous, not or weakly keeled;

ligules 1.5-4 mm;

blades 9-29 cm long, 2-7.5 mm wide, scabrous.

Panicles

15-25 cm long, 6-15(20) cm wide, open, pyramidal, nodding;

branches 8-12 cm, ascending to divergent, flexuous, often smooth, with 30-40+ spikelets;

pedicels 0.3-6 mm.

Spikelets

3.5-6 mm long, 1.4-2.5 mm wide, about 2.5 times longer than wide, laterally compressed, oval in side view, with 3-6 florets.

Glumes

unequal, lengths about 3 times widths, narrowing beyond midlength, veins terminating below the apices, apices acute, forming an angle of about 45°;

lower glumes 1.5-2 mm;

upper glumes 2-2.6 mm, erose;

rachilla internodes 0.4-0.6 mm;

lemmas 2.5-3.5 mm, oval in dorsal view, 7-veined, veins raised, scabridulous, apices broadly acute to obtuse, prow-shaped;

paleas from shorter than to equaling the lemmas, lengths 3-3.5 times widths, keels not winged, tips incurved, apices narrowly notched between the keels;

anthers 2, 0.5-0.9 mm.

Caryopses

about 1 mm.

2n

= unknown.

Glyceria pulchella

Distribution
from FNA
AK; AB; BC; MB; NT; SK; YT
[BONAP county map]
Discussion

Glyceria pulchella grows in marshes, muskegs, ponds, and ditches, from central Alaska and the Northwest Territories to southern British Columbia and central Manitoba. In overall aspect, G. pulchella resembles G. striata and G. elata. It differs in having somewhat stiffer and straighter panicle branches, in addition to larger spikelets and florets.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 24, p. 77.
Parent taxa Poaceae > subfam. Pooideae > tribe Meliceae > Glyceria > sect. Striatae
Sibling taxa
G. acutiflora, G. alnasteretum, G. borealis, G. canadensis, G. declinata, G. elata, G. fluitans, G. grandis, G. leptostachya, G. maxima, G. melicaria, G. notata, G. nubigena, G. obtusa, G. septentrionalis, G. striata, G. ×occidentalis
Name authority (Nash) K. Schum.
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