1. Fine-leaved aquatic spike rush; popular as aerator for aquariums
   - needle rush, slender spike rush, hair grass, Eleocharis acicularis

Derived forms: needle spike rushes

Type of: spike rush

• blue mockingbird
• blue mold fungus
• blue moon
• blue mould fungus
• Blue Mountain tea
• blue murder
• Blue Nile
• blue note
• blue orchid
• blue pea
• blue peafowl
• blue peter
• blue pickerel
• blue pike
• blue pikeperch
• blue pimpernel
• blue point Siamese
• blue pointed
• blue poppy
• blue racer
• blue riband
• blue ribbon commission
• blue ribbon committee
• blue ribbon jury
• Blue Ridge