Scientific Name:	Butomus umbellatus
Pronunciation:	BEW-toh mus um-bell-AY-tus
Common Name:	flowering rush
Family Name:	Butomaceae
Plant Type:	Herbaceous perennial, Invasive plant
Key ID Features:	Leaves linear, most 1-2 m long; inflorescences umbel with 20-25 florets, each with 6 pistils, 2-3 cm wide, pedicels 4-10 cm long, peduncle up to 150 cm long; follicles, 6 per floret, each about 1 cm long.
Course(s):	Level 4 Apprenticeship

Habit: Upright Form: Vase Texture: Medium - fine Mature Size: Height: 1.3 - 2.0m Spread: 1.0 - 1.5m Growth Rate: Fast Origin: Central / west Asia, Europe (now naturalized in many parts of North America) Hardiness Rating: Zone 2: (-46 to -40 C) Exposure: Full sun Soil/ Growing Medium: Bog Landscape Uses: Container planting, Wetland - bogs Additional Info: Google. Leaf bases triangular in cross-section like many sedges (Cyperaceae) and the peduncles are round in c.s. like stems of a rush (Juncaceae). Invasive (best removed from natural water ways).

Leaf Morphology: Glossary Form: Grass-like, Simple Arrangement: Basal, Sessile Texture/ Venation: Parallel venation Surfaces: Glabrous Leaf(let) Terms: Shapes: Linear Apices: Acuminate Bases: Truncate Margins: Entire

Inflorescence Type: Floriferous, Cyme Flower Morphology: Flowers perfect Number of Petals: 3 Corolla Shape: Rotate/stellate Ovary Position: Superior Colour (petals): Showy, Pink, Purple Flower Time at Peak: Jul, Aug Additional Info: Umbel-like; six tepals (sepals petal-like but smaller)

Fruit Type: Follicle, Aggregate fruit Fruit Colour: Brown Fruiting Time: Sep, Oct

Bark Morphology: Smooth Bark or Stem Colour: Green     Organ Modifications: Rhizomes

Location(s): Location Map

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