Family: Pontederiaceae (Pickerelweed Family)
Duration and Habit: Perennial Herb
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 x 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 x 0.8-1.1 mm. Flowering (probably) Jun-Oct. Coastal rivers, lakes; 0-100 m.
Native Lookalikes: Currently no information available here yet, or there are no native Texas species that could be confused with Anchored water hyacinth.
Biology & Spread:
U.S. Nativity: Introduced to U.S.
Native Origin: Introduced to U.S.
U.S. Present: PR
Distribution in Texas:
Romero-Gonzalez G.A., G.C. Fernandez-Concha, R.L. Dressler, L.K. Magrath and G.W. Argus. 2008. Fora of North America: Eichhornia azurea (Swartz) Kunth, Eichhornia. 4. 1842. Accessed 21 Novemeber 2008: http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=220004607
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