Sedum kawaraense, Takuro Ito & Kanemitsu, 2023

Ito, Takuro, Kanemitsu, Hironobu, Hoson, Taishi & Yahara, Tetsukazu, 2023, A new species of succulent plant discovered in limestone areas of Kyushu, Japan: Sedum kawaraense (Crassulaceae), Phytotaxa 587 (2), pp. 149-160 : 158

Diagnostic key of S. kawaraense and related species

1. Carpels 3........................................................................................................................................................................... S. tricarpum

– Carpels 5............................................................................................................................................................................................ 2

2. Perennial, a stolon present, rosulate leaves absent during flowering .................................................................................... S. subtile

– Annual or biennial, a stolon absent, rosulate leaves present during flowering ..................................................................................3

3. Bulb present at leaf axils ................................................................................................................................................ S. bulbiferum

– Bulb absent at leaf axils......................................................................................................................................................................4

4. Flowering stem extends only from rosette center...............................................................................................................................5

– Flowering stem extends from rosette center and leaf axils ................................................................................................................6

5. Cauline leaves obovate to spatulate, 0.7–1.2× 0.3–0.6 cm ..................................................................................... S. erythrospermum

– Cauline leaves narrowly obovate to spatulate-oblong, 2.0–3.0× 0.3–0.7 cm ............................................................. S. hangzhouense

6. Flowers 2–6, rosulate leaves broadly obovate................................................................................................................. S. lipingense

– Flowers 4–16, rosulate leaves spatulate ........................................................................................................................ S. kawaraense