. ▁Each ▁is ▁up ▁to ▁ 2 5 ▁cent im eters ▁long ▁by ▁ 3 ▁wide , ▁lance - sh aped , ▁sometimes ▁rig id , ▁and ▁hair less ▁to ▁slightly ▁hair y . ▁There ▁are ▁two ▁types ▁of ▁infl ores c ence . ▁The ▁main ▁pan icle ▁contains ▁many ▁sp ike lets ▁with ▁flowers ▁that ▁open ▁and ▁are ▁pol lin ated . ▁Another ▁type ▁of ▁infl ores c ence ▁contains ▁cle ist og am ous ▁flowers : ▁flowers ▁which ▁do ▁not ▁open ▁and ▁pol lin ate ▁themselves . ▁These ▁are ▁located ▁in ▁the ▁she ath s ▁of ▁the ▁stem ▁leaves ▁and ▁are ▁sometimes ▁hidden . ▁They ▁are ▁produced ▁later ▁in ▁the ▁year ▁than ▁the ▁open ▁pan icle . ▁There ▁are ▁about ▁ 4 0 0 , 0 0 0 ▁se eds ▁per ▁p ound . ▁ ▁This ▁plant ▁is ▁toler ant ▁of ▁high ▁levels ▁of ▁al umin um ▁in ▁so ils . ▁It ▁toler ates ▁acid ▁so ils ▁and ▁thin , ▁infer t ile ▁so ils . ▁It ▁can ▁be ▁used ▁to ▁reve get ate ▁rec laimed ▁land ▁such ▁as ▁mine ▁spo ils . ▁The ▁cultiv ar ▁' T i oga ' ▁has ▁been ▁available ▁since ▁ 1 9 7 5 . ▁ ▁The ▁se eds ▁of ▁de ert ong ue ▁attract ▁many ▁types ▁of ▁birds , ▁such ▁as ▁tur keys . ▁The ▁grass ▁is ▁not ▁considered ▁a ▁good ▁for age ▁for ▁liv est ock ▁because ▁it ▁is ▁low ▁in ▁nut ri ents . ▁ ▁References ▁ ▁External ▁links ▁US DA ▁Pl