Geranium, Linnaeus (1753: 676), Linnaeus, 1753

Hurrah, Imtiyaz A., Shukla, Aparna R. & Wagh, Vijay V., 2023, Occurrence of Geranium mascatense (Geraniaceae) in India and the speculations about its global distribution, Phytotaxa 598 (3), pp. 206-218 : 215

Identification Key

1a. Habit caulescent; inflorescence monochasial rarely dichasial; glandular hairs present....................................................................2.

1b. Habit acaulescent; inflorescence scapigerous: glandular hairs absent ............................................................................... G. indicum

2a. Petals with dark purple or white spot at base, division of the leaves extended up to or slightly more than half, flowers both chasmogamous as well as cleistogamous ...........................................................................................................................................3

2b. Petals without basal spot, division of leaves almost extended to base, flowers chasmogamous ...................................... G. favosum

3a. Lower cauline leaves opposite; mericarps with less prominent ring like ribs with shallow furrows.................................................4

3b. Lower cauline leaves alternate; mericarps with prominent irregular pyramidal ribs with deep furrows..................... G. mascatense

4a. Basal leaves rosette persistent; sepals not accrescent; mericarp with 8–14 transverse, glabrous ribs, separated by 0.2–0.3 mm wide sinuses................................................................................................................................................................................................5.

4b. Basal leaves rosette deciduous; sepals slightly accrescent; Mericarp with 4–6 transverse, hairy ribs, separated by 0.3–0.4 mm wide sinuses................................................................................................................................................................................ G. brevipes

5a. Petals with dark purple spot at base ................................................................................................................................ G. ocellatum

5b. Petals with white spot at base.................................................................................................................. G. ocellatum var albiflorum