Amphibromus is a genus of 12 species, two native to South America, one to both New Zealand and Australia, and the remainder endemic to Australia; two have been introduced into the Flora region. Most species grow in open, damp habitats such as floodplains and other areas that are periodically flooded, and on the banks of, and sometimes in, inland and coastal rivers, marshes, lagoons, waterholes, and swamps.
Cleistogamy is common in Amphibromus. Cleistogamous spikelets in the terminal panicles resemble the chasmogamous spikelets, but have smaller anthers; those in the lower leaf sheaths are unawned. Plants usually flower in response to rain or flooding.
|1||Pedicels absent or to 10 mm long; lowest internodes usually swollen; awns 8-17 mm long||Amphibromus scabrivalvis|
|1||Pedicels usually longer than 10 mm; lowest internodes not swollen; awns 12-26 mm long.||> 2|
|2||Awns arising from the lower 2/5 – 3/5 of the lemmas; lemma apices not appearing constricted||Amphibromus nervosus|
|2||Awns arising from the upper 2/3 - 3/4 of the lemmas; lemma apices appearing constricted||Amphibromus neesii|
|Author||Surrey W.L. Jacobs +|
|Distribution||Calif. + and La. +|
|Reference||calaway1985a +, jacobs1986a +, nees1843a + and swallen1931a +|
|Source xml||https://firstname.lastname@example.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse grained fna xml/V24/V24 995.xml +|
|Taxon family||Poaceae +|
|Taxon name||Amphibromus +|
|Taxon parent||Poaceae tribe Poeae +|
|Taxon rank||genus +|
|Volume||Volume 24 +|