Key to distinguish among Kalanchoe decumbens, K. krigeae, and K. rotundifolia 1. Leaf consistency soft; adaxial surface of corolla lobes uniformly vividly deep red to orange-red; corolla lobes ± ovate to elliptic. .......................................................................................................................................................................... Kalanchoe decumbens 1’. Leaf consistency firm; adaxial surface of corolla lobes uniformly apricot-orange, bright orange, or red, sometimes orange-infused if red; corolla lobes generally narrowly elliptic .................................................................................................................................2 2. Leaves lanceolate-cymbiform to narrowly oblong-terete; corolla lobes often sigmoidally down- and upcurved, apically roundedacute to acute ......................................................................................................................................................... Kalanchoe krigeae 2’. Leaves oblong-elliptic to elliptic-obovate to round; corolla lobes ± flat, straight, apically attenuate-acute ....................................... ........................................................................................................................................................................ Kalanchoe rotundifolia

Published as part of Smith, Gideon F. & Figueiredo, Estrela, 2023, Kalanchoe krigeae (K. subg. Kalanchoe; Crassulaceae subfam. Kalanchooideae), a new, small-growing species from northeastern South Africa split off from K. rotundifolia, pp. 280-288 in Phytotaxa 603 (3) on page 282, DOI: 10.11646/phytotaxa.603.3.7, http://zenodo.org/record/8166735