Taxonomy
Pelargonium album is in the Subgenus Pelargonium myrrhidium DC.
Botany
Procumbent to decumbent, short-lived perennial subshrubs. Leaves heteroblastic; lamina green or greyish-green, trilobate to bipinnatisect or trifoliolate. Pseudo-umbels with 1-6 flowers each. Flowers extremely zygomorphic, protogynous. Pedicel 1-3 mm long, Hypanthium 4-55 mm long, Sepals with prominantly raised brownish or reddish veins. Petals 4 or 5. Fertile stamens 5 or 7. Chromosomes 2n = 22 (caucalifolium: 44). See S. Afr. J. Bot. 52 (1986) 438-462 for details.
Subgenus Pelargonium myrrhidium
anemonifolium Jacq. syn. myrrhifolium (L.) L'Herit.
athamanthoides L'Herit. syn. (?) myrrhifolium (L.) L'Herit. var. coriandrifolium (L.) Harv.
betonicum (Burmf. f.) Jacq. syn. myrrhifolium var. myrrhifolium (L.) J. J. A. van der Walt
bullatum Jacq. syn. myrrhifolium var. myrrhifolium (L.) J. J. A. van der Walt
canaliculatum Zuccagni syn. myrrhifolium var. myrrhifolium (L.) J. J. A. van der Walt
candicans Spreng.
caucalifolium Jacq.
coriandrifolium (L.) Jacq. syn. myrrhifolium (L.) L'Herit.
ecklonii Turcz. syn. myrrhifolium (L.) L'Herit. var. coriandrifolium (L.) Harv.
emarginatum P. E. Moench. syn. longicaule Jacq.
gallense Chiov.
goetzeanum Engl. syn. whytei Baker
lacerum Jacq. syn. myrrhifolium (L.) L'Herit.
longicaule Jacq.
meifolium Meissn. syn. (?) myrrhifolium (L.) L'Herit. var. coriandrifolium (L.) Harv.
multicaule Jacq.
myrrhifolium (L.) L'Herit.
pendulum G. Don syn. longicaule Jacq.
rogersii S. Moore syn. candicans Spreng.
suburbanum (Eckl. & Zeyh.) Clifford ex Boucher
subherbaceum Knuth syn. multicaule ssp. subherbaceum (Knuth) J. J. A. van der Walt
synnotii G. Don syn. myrrhifolium var. myrrhifolium (L.) J. J. A. van der Walt
triangulare (Eckl. & Zeyh.) Steud. syn. multicaule Jacq.
urbanum (Eckl. & Zeyh.) Harv. syn. suburbanum (Eckl. & Zeyh.) Clifford ex Boucher
whytei Baker