Scientific Name:
Poa annua
var.
reptans
Pronunciation:
POE-uh AN-you-uh variety REP-tanz
Common Name:
creeping bluegrass
Family Name:
Poaceae
Plant Type:
Poales (grass-like)
Key ID Features:
Prostrate growth habit with frequent flowering; rhizomes and stolons present (perennial); leaf vernation folded, blade light green in spring and fall, V-shaped to flat, mostly >2mm wide, two parallel pale lines on either side of midrib, margins parallel (not tapering), short with boat-shaped tip; auricles absent; ligule 2-3mm, whitish, slightly pointed, medium length; low, frequent flowering. Field ID terms: boat tip, seed heads, brighter, apple-green, dull under, creeping.
Habit:
Form:
Creeping / Mat-like
Texture:
Fine
Mature Height:
0.1 - 0.2m
Mature Spread:
< 0.1m
Growth Rate:
Fast
Origin:
Central / west Asia, Europe
Hardiness Rating:
Zone 5: (-29 to -23 °C)
Exposure:
Soil/Growing Medium:
Landscape Uses:
Golf green, Lawn - sports field
Additional Info:
Google. A perennial subspecies of Poa annua.
Leaf Morphology:
Form:
Grass-like
Arrangement:
Alternate
Texture/Venation:
Surfaces:
Shapes:
Linear
Apices:
Acute
Bases:
Sheathing
Margins:
Entire
Inflorescence Type:
Spikelet, Panicle-like
Flower Morphology:
Flowers perfect
Number Of Petals:
0
Ovary Position:
Superior
Colour (petals):
Green
Flower Time at Peak:
Apr, May, Jun, Jul, Aug, Sep, Oct
Additional Info:
Three to six florets per spikelet; spikelets arrannged in open panicle with short penduncle
Fruit Type:
Grain (caryopsis)
Fruit Colour:
Brown
Fruiting Time:
Additional Info:
2-3mm long, tips pointed; lemma 2.5-3mm long, 5-nerved, prominant keeled mid-nerve; usually hairy on keel of palea; rachilla prominant
Bark or Stem Colour:
Organ Modifications:
Runners (or stolons)
