2335.000 Alternanthera Forssk.

Key to species

1Tepals very dissimilar in form2
1Tepals all similar in form, subequal or the inner two slightly shorter3
2Abaxial tepals very long-awned (the awn c.1/3 of the total tepal length), with tufts of minutely barbed hairs near the basal angles; adaxial tepal strongly minutely dentateAlternanthera pungens
2Abaxial tepals only shortly awned (the awn less than 1/4 of the total tepal length), with minutely barbed hairs in the basal half or more; adaxial tepal almost entireAlternanthera caracasana
3Ripe fruit yellowish with swollen margins on each side of the seed, only about half the length of the usually 3-4 mm tepalsAlternanthera nodiflora
3Ripe fruit dark, thin-margined with only a narrow yellowish rim, almost as long to sometimes exceeding the 1.5-2.5 mm tepalsAlternanthera sessilis

Copyright: Mark Hyde, Bart Wursten, Petra Ballings and Meg Coates Palgrave, 2002-24

Hyde, M.A., Wursten, B.T., Ballings, P. & Coates Palgrave, M. (2024). Flora of Zimbabwe: Alternanthera: Key to species.
https://www.zimbabweflora.co.zw/speciesdata/species-key.php?genus_id=539, retrieved 25 February 2024

Site software last modified: 26 December 2016 8:34pm (GMT +2)
Terms of use