Jepson eFlora
Key to families | Table of families and genera

Key to Azolla

View taxon page for Azolla

1. Stems equally to often unequally dichotomously branched or pinnately branched, forming round to elongate plants to 3 cm, 2 cm wide; leaves ovate or oblong-ovate, generally 1.2–2 mm, 1 mm wide; leaf margins of upper (± green or ± red) leaf lobes with broad ± white band of cells >= 4 cells wide; male spore mass barbs lacking partitions ..... A. filiculoides

1' Stems ± equally dichotomously branched, forming ± round plants generally 1–1.3 cm wide; leaves ovate to ± round, 0.5–0.8 mm, 0.5–0.7 mm wide; leaf margins of upper (green or ± red) leaf lobes with narrow ± white band of cells 1–2 cells wide; male spore mass barbs with 1–3 partitions ..... A. microphylla

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Citation for an individual treatment: [Author of taxon treatment] [year]. [Taxon name] in Jepson Flora Project (eds.) Jepson eFlora, [URL for treatment]. Accessed on [month, day, year].
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