Modifiers matching grass:

• alien,
• native,
• familiar,
• annual,
• weather,
• fine,
• common,
• tropical,
• perennial,
• tiny,
• tall,
• dried,
• related,
• natural,
• commercial,
• agricultural,
• out,
• short,
• herbaceous,
• ornamental,
• sized,
• underwater,
• exotic,
• new,
• subtropical,
• favorite,
• foreign,
• aggressive,
• small,
• aromatic,
• coarse,
• wild,
• indigenous,
• large,
• nonnative,
• domestic,
• decorative,
• nutritious,
• monocotyledonous,
• unwanted,
• hard,
• thick,
• invasive,
• smaller,
• larger,
• important,
• light,
• woody,
• low,
• tough,
• useful,
• nonwoody,
• tolerant,
• desirable,
• edible,
• weedy,
• model,
• temperate,
• local,
• domesticated,
• susceptible,
• terrestrial,
• artificial,
• european,
• sensitive,
• soft,
• dry,

Simple categories matching perennial:

• herb,
• ornamental,
• legume,
• plant,
• weed,
• vegetable,
• tree,
• veggie,
• wildflower,
• river,
• fruit,
• grass,
• crop,
• bunchgrass,
• flower,
• pasture,
• planting,
• forage,
• clover,
• vine,
• species,
• issue,
• host,
• pest,
• seed,
• group,
• shrub,
• allergen,
• antigen,
• native,