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Scientific Name: Poa pratensis
Pronunciation: POE-uh pruh-TEN-sis
Common Name: Kentucky bluegrass
Family Name: Poaceae
Plant Type: Herbaceous perennial, Poales (grass-like)
Key ID Features: Leaf vernation folded, blade soft, smooth on both sides, V-shaped to flat, 1-4 mm wide, two parallel pale lines on either side of midrib, edges parallel but then tapering to a boat-shaped and rounded tip…sheath green and smooth…auricles absent…ligule 0.2-0.6 mm truncate, small trichomes on back…sheath slightly compressed… rhizomes strong, multi-branched…stolons absent…thatchy habit. Field ID terms: boat tip, darker (?), duller, smooth top.
Course(s): not used (on campus)

Habit: Dense
Form: Creeping / Mat-like
Texture: Fine
Mature Size:
Hardiness Rating: Zone 3: (-40 to -34 C)
Soil/ Growing Medium:
Landscape Uses: Golf green, Lawn - sports field
Additional Info: Google
Kentucky bluegrass
Leaf Morphology: Glossary
Form: Grass-like
Arrangement: Alternate
Texture/ Venation: Soft flexible
Surfaces: Glabrous
Leaf(let) Terms:
Shapes: Linear
Apices: Acute
Bases: Sheathing
Margins: Entire
Additional Info: Leaves folded in bud.

Inflorescence Type: Panicle-like, Spikelet
Flower Morphology:Flowers perfect
Number of Petals:0
Ovary Position:Superior
Colour (petals): Showy, Purple, Green, Dark-red
Flower Time at Peak:
Additional Info: Spikelets with 3 to 5 florets; arranged in an open, pyramidal shaped inflorescnce with main branching in wholes of mostly 5.
Fruit Type: Grain (caryopsis)
Fruit Colour: Brown
Fruiting Time:
Additional Info: 2-3 mm long, tips pointed; lemma 2.5-3 mm long, 5-nerved, prominant keeled mid-nerve; usually hairy edges of palea to tip; 4,800 grains per gram

Bark or Stem Colour:
Organ Modifications: Rhizomes

Pest Susceptibility: Anthracnose, Fungal leaf spot, Mold, Rust,
Specific Pests: European chafer, European crane fly, Colletotrichum cereale
(TFL) Turf Field Lab
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