Pelargonium petroselinifolium G. Don
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A general system of gardening and botany 1 (1831) 728.
Section Hoarea

Habit
Acaulescent geophyte.


Leaves
Lamina elliptic in outline, pinnately compound, irregularly bipinnatifid, pinnae obtriangular, 12-18 x 6-10 mm, bases cuneate, apices deeply incised. Segments 2-3 mm wide, apices obtuse, with or without a single hair, adaxially and abaxially hirsute with appressed hairs interspersed with short glandular hairs. Petiole 30-50 mm long, rigid erecto-patent. Stipules subulate, adnate to petioles for 1/2 to almost full of their length.


Inflorescence
Scape, bearing 2-5 pseudo-umbellets, each with (3-)5-8(-10) flowers. Pedicel cca. 0.5 mm.


Sepals
5, lanceolate, apices acute, 5.5-7 x 1.5-2.5 mm, posterior erect, others reflexed. Hypanthium 13-25 mm, green or pale reddish brown.

Petals
5, pink, posterior two with wine-red feather-like markings, ligulate or narrowly spathulate, apices emarginate, 11-16.5 x 2.2-3.5 mm. Anterior three narrowly spathulate, bases attenuate, apices rounded, 10.5-14 x 2-3 mm.

Stamens
5 fertile, concealed within the floral sheath, posterior one 2-3 mm, lateral two 3-5, anterior two 4-6 mm.

Distribution


Habitat


P. petroselinifolium has a small distribution between Gydo Pass and Karoo Poort. Theronsberg Pass is almost in the centre of its range and is a rather lazy 'pass' - there is barely an elevation and is easily one of the least noticeable passes in the Cape. Although covered in karooid vegetation, it still receives a sizeable amount of rainfall.

Synonims
apiifolium (Andr.) Loud.
apioides (Andr.) Steud.
pilosum (Andr.) Pers.

Literature
E. M. Marais, Taxonomic Studies in Pelargonium, Section Hoarea (Geraniaceae), PhD Thesis, University of Stellenbosch, 1994.

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