Luzula acuminata
 
Hairy Wood-Rush

Base of Inflorescence

Fir River Shelter on Fir River Road, West of Hudson Bay
18-June-2015

Note the inflorescence is subtended by two leaf-like proximal bracts.  The key to the species in Flora of Alberta requires the inflorescence be umbellate, not cymose.  In fact, the inflorescence is actually cymose but appears to be umbellate when viewed from a distance.

bullet

Acuminata: Answers to key questions in Budd's Flora and Flora of Alberta leading to this species. 
bullet

inflorescence umbellate; NOT [inflorescence cymose (usually much branched)]

bullet

flowers solitary (or 2-3 together) at the ends of branches; NOT [flowers crowded in dense clusters]

bullet

flowers 2.5-4.5 mm long; NOT [flowers 2-3.0 mm long]

bullet

seeds about 2.5 mm long; NOT [seeds smaller]

bullet

seeds with a tail-like appendage about as long as the body; NOT [seeds without a tail-like appendage]

 

bullet

Luzula: Answers to key questions in Budd's Flora and Flora of Alberta leading to this genus. 
bullet

leaves flat or channelled and grass-like; NOT [leaves often terete, seldom flat and grass-like]

bullet

leaves more or less hairy, at least when young; NOT [leaves glabrous]

bullet

capsule containing 3 large seeds; NOT [capsule containing many small seeds]

 

bullet

Juncaceae: Answers to key questions in Budd's Flora leading to this family. 
bullet

plants not aquatic, or if growing in water, most of the plant emersed; NOT [plants aquatic, floating or submerged, with floating leaves or emersed inflorescence]

bullet

flowers not in globular heads; NOT [flowers in globular heads, the upper ones staminate, the lower ones pistillate]

bullet

flowers in branched inflorescences; NOT [inflorescence a dense, single, cylindrical spike 8-15 cm long, 1-2.5 cm thick], NOT [flowers in spike-like racemes]

bullet

perianth in two whorls, each of three segments

bullet

perianth segments inconspicuous and scale-like; NOT [perianth segments conspicuous and often brightly colored], NOT [perianth of greenish sepals and petals]