E-Flora BC: Electronic Atlas of the Flora of BC

Egeria densa Planch.
Brazilian waterweed
Hydrocharitaceae (Tape-grass family)

Introduction to Vascular Plants

General:
Perennial aquatic herb from a fibrous root; stems solitary, sparingly branched.

Leaves:
Stem leaves in whorls of 3 (below) and 4 or 6 (above), lanceolate, 2-3.5 cm long, 2-5 mm wide, minutely sharp-toothed.

Flowers:
Inflorescence 2- to 4-flowered (male) or 1-flowered (female); flowers axillary, long-stalked, one per stalk; petals 3, white, egg-shaped, 8-11 mm long; sepals 3, greenish, egg-shaped, 3-5 mm long; stamens 9.

Fruits:
Capsules, cylindric or egg-shaped; seeds several.

Notes:
Only male plants known in N America.

Source: The Illustrated Flora of British Columbia

If more than one illustration is available for a species (e.g., separate illustrations were provided for two subspecies) then links to the separate images will be provided below. Note that individual subspecies or varietal illustrations are not always available.

Illustration Source: The Illustrated Flora of British Columbia

Origin Status	Provincial Status	BC List (Red Blue List)	COSEWIC
Exotic	SNA	Exotic	Not Listed

BC Ministry of Environment: BC Species and Ecosystems Explorer.

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