BugwoodWiki Article

bulbous bluegrass
Poa bulbosa L.

Overview

Appearance
Poa bulbosa is a perennial grass that can grow up to 7.8-31.5 in. (20-80 cm) tall. It has multiple common names but the most common are bird grass, June grass and Kentucky grass. P. bulbosa is native to Africa, temperate and tropical Asia and Europe.
Foliage
Sheath slightly compressed, not sharply keeled and split with overlapping margins. Leaf blade parallel sided, from 0.07-0.15 in. (2-4 mm) wide, keeled, and v-shaped. Foliage is a deep green color.
Flowers
Flowering occurs from May-June. Panicle is from 1.2-5.1 in. (3-13 cm) long, 1.18-3.15 in. (3-8 cm) wide and pyramid shaped. It is open with long branches. The branches at the base are in clusters of 3-5. There are 3-5 flowers per spikelet held on short, slender stalks.
Fruit
The fruit is a caryopsis (dry one-seeded fruit).
Ecological Threat
P. bulbosa overtakes open fields, yards and roadsides.

Selected Images


1459080
1459080

bulbous bluegrass
Poa bulbosa
Plant(s)
Steve Dewey
5386236
5386236

bulbous bluegrass
Poa bulbosa
Plant(s)
Joseph M. DiTomaso
5456394
5456394

bulbous bluegrass
Poa bulbosa
Plant(s)
Leslie J. Mehrhoff
5456397
5456397

bulbous bluegrass
Poa bulbosa
Plant(s)
Leslie J. Mehrhoff
5456398
5456398

bulbous bluegrass
Poa bulbosa
Plant(s)
Leslie J. Mehrhoff
5386237
5386237

bulbous bluegrass
Poa bulbosa
Flower(s)
Joseph M. DiTomaso
5386238
5386238

bulbous bluegrass
Poa bulbosa
Fruit(s)
Joseph M. DiTomaso
5391723
5391723

bulbous bluegrass
Poa bulbosa
Flower(s)
Barry Rice
5386235
5386235

bulbous bluegrass
Poa bulbosa
Seed(s)
Joseph M. DiTomaso

Maps


EDDMapS Distribution - This map is incomplete and is based only on current site and county level reports made by experts, herbaria, and literature. For more information, visit www.eddmaps.org

EDDMapS Distribution

Taxonomic Rank

Kingdom: Plantae
Phylum: Magnoliophyta
Class: Liliopsida
Subclass: Commelinidae
Order: Cyperales
Family: Poaceae
Genus: Poa

Other System Links

Plants: POBU
Bayer: POABU
GRIN: 28920
ITIS: 41116
NPDN Pest: PCACKBB

Synonyms and Other Names

Other Common Names:
bulbous blue grass

Categories

Category: Grass or Grasslike