Kalanchoe sect. Raveta

Smith, Gideon F., 2022, Of paddles, soup plates, and clubs: the taxonomy of the southern and southtropical African Kalanchoe sect. Raveta (Crassulaceae subfam. Kalanchooideae; Kalanchoe subg. Kalanchoe) and its constituent species, Phytotaxa 568 (1), pp. 8-26 : 21

Updated identification key to species included in Kalanchoe sect. Raveta , i.e., those species with large, obovate to round leaves and dense-flowered, club-shaped inflorescences

1a. Leaves basally distinctly auriculate .................................................................................................................................... K. winteri

1b. Leaves basally cuneate, sometimes slightly flared ........................................................................................................................... 2

2b. Plants tomentose, rarely glabrous ................................................................................................................................... K. montana

2a. Plants glabrous ................................................................................................................................................................................. 3

3a. Corolla lobes bright yellow .............................................................................................................................................................. 4

3b. Corolla lobes white, pale yellowish green, or pale pink to reddish ................................................................................................. 5

4a. Corolla tubes narrowly-urceolate, 9–10 mm long; 8 anthers exserted at anthesis .......................................................... K. crouchii

4b. Corolla tubes cylindrical, 12–20 mm long; 4 anthers exserted at anthesis .................................................................. K. thyrsiflora

5a. Corolla lobes pale pink to reddish ................................................................................................................................ K. benbothae

5b. Corolla lobes white or pale yellowish green .................................................................................................................................... 6

6a. Nectar scales cuneiform-quadrangular, 3-lobate above ...................................................................................................... K. luciae

6b. Nectar scales rectangular, distinctly wider than long, entire above ...................................................................................... K. wildi