Comparison Chart for Species of Dactylis, Festuca, Taeniatherum & Vulpia

  • Character

    Dactylis glomerata

    Festuca arundinacea

    Festuca occidentalis

    Festuca rubra ssp. rubra

    Taeniatherum
    caput-medusae

    Vulpia microstachys

    Vulpia
    myuros

    floret picture

    lemma body length

    4–7(8) mm

    6–9(12) mm

    4–8 mm

    (4)6–7.5(8) mm

    5–8 mm

    3.5–9.5 mm

    4.5–7.5 mm

    lemma awn length

    <3 mm

    <3 mm

    >3 mm

    mostly <3 mm

    >3 mm

    >3 mm

    >3 mm

    lemma keeled

    yes

    no

    no

    no

    no

    no

    no

    floret callus

    blunt

    blunt

    blunt

    blunt

    ± pointed

    blunt

    pointed

    palea apex

    bifid

    entire

    entire

    entire to
    minutely bifid

    entire to
    shallowly bifid

    distinctly bifid

    minutely bifid

    caryopsis shape

    elliptic to
    lanceolate
    or oblong

    oblong

    narrowly elliptic

    narrowly
    elliptic
    to oblong

    lanceolate
    to linear

    lanceolate
    to linear

    narrowly
    elliptic
    to linear

    caryopsis size

    1–3.2 mm long
    0.5–1 mm wide

    2–4 mm long
    0.9–1.6 mm wide

    4.5 mm long
    0.8 mm wide

    2.5–4 mm long
    1–1.5 mm wide

    6–7 mm long
    1.5 mm wide

    3.5–5.5 mm long
    1 mm wide

    3–5 mm long
    0.4–0.8 mm wide

    caryopsis apex

    glabrous

    glabrous

    glabrous

    glabrous

    hairy

    glabrous

    glabrous