HORNED-PONDWEED FAMILY. Habit: [Annual] perennial herb from slender, creeping rhizome, glabrous, aquatic, submersed; monoecious. Stem: thread-like, weak.
Aug 22, 2024
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Leaves alternate, opposite, or pseudowhorled, often all on same plant, submersed, sessile; sheath not persisting longer than blade, not leaving circular scar ...
The Potamogetonaceae, commonly referred to as the pondweed family, is an aquatic family of monocotyledonous flowering plants.
ZANNICHELLIACEAE. HORNED PONDWEED FAMILY. Submerged aquatic monoecious or dioecious herbs with slender creeping rhizome. Stems capillary, branched.
Habit and leaf form. Aquatic herbs. 'Normal' plants (more or less), or plants of very peculiar vegetative form; sometimes filamentous (then Chara-like).
Synonyms: Zannichelliaceae APNI*. Description: Aquatic annuals or perennials, bisexual, dioecious or monoecious, often rhizomatous, sometimes salt-tolerant.
Nov 5, 2020 · Pistillate flowers: pistils surrounded proximally by membranaceous envelope; stigma asymmetrically funnel-shaped. Fruits: convex margin minutely ...
Submerged aquatic herbs, primarily annuals, dioecious or monoecious. STEMS caulescent. LEAVES opposite, alternate and/or pseudowhorled on the same plant, ...
Family - Horned Pondweeds - Zannichelliaceae. PDF icon. Species. Horned Pondweed Zannichellia palustris. Montana Natural Heritage Program · Map Viewer · Species ...
1988. Seed morphology of the genus Zannichellia Zannichelliaceae. J. Econ. Taxon. Bot. 12: 385-386. Flora of North America Editorial Committee.