Photographer:
Kurt St Source:
Max-Planck Institute for Plant breeding Research, Bugwood.org
Description:Plants perennial, typically rooted in mud. Vegetative stems elongate, developing to and growing at water surface. Flowering stems erect, 8–12 cm, glabrous, distal inter-node 2–10 cm. Sessile leaves submersed, alternate on elongate stem. Petiolate leaves emersed; stipule 7–13 cm, apex truncate; petiole never inflated, 11–25 cm; blade round, 7–16 × 2.3–16 cm. Spikes 7–50-flowered, individual flowers open 1 day only; spathes obovate, 3–6 cm; peduncle 1.9–15 cm, pubescent with orange hairs. Perianth blue or white, limb lobes obovate, 13–25 mm, margins erose, central distal lobe dark blue at base with yellow distal spot; proximal stamens 15–29 mm, distal 6–20 mm; anthers 1.2–2.3 mm; style 3-lobed. Seeds 10–13-winged, 1–1.8 × 0.8–1.1 mm. Flowering (probably) Jun-Oct. Coastal rivers, lakes; 0-100 m.
History:
Biology & Spread:
Ecological Threat:
US Habitat:
Distribution
US Nativity:
Introduced to U.S.
Native Origin:
Introduced to U.S.
US States:
PR
EDDMapS: View Texas Map from Early Detection & Distribution Mapping System for
Eichhornia azurea
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DEPARTMENT OF AGRICULTURE FOR ANY ADDITIONAL PESTICIDE USE REQUIREMENTS,
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ON THIS WEB SITE DOES NOT CONSTITUTE ENDORSEMENT OF ANY MATERIAL.
Listing Source
Texas Department ofAgriculture Noxious Plant List
Texas Parks and Wildlife Department Prohibited Exotic Species
Invaders Program
Federal Noxious Weed
Union of Concerned Scientists
United States Forest Service Southern Research Station
