PLANTAE / PHANEROGAMAE / ANTHOPHYTA / GERANIALES / GERANIACEAE / PELARGONIUM / AESTIVALE
A deciduous geophyte with a regularly shaped subterranean tuber, 120-200 mm tall when in flower. Tuber: a turnip-shaped or elongated, sometimes moniliform root with a short flattened stem, covered with flaking dark-brown periderms, 30-80 mm long and 12-30 mm in diameter. Leaves radical, hysteranthous, rosulate, simple or ternate, green, petiolate; lamina ovate, apex acute, margin entire to serrate, revolute, 25-95 x 14-48 mm, adaxially and abaxially hirsute or sparsely hirsute with stiff hairs interspersed with short glandular hairs and long soft non-glandular hairs; petiole 25-90 mm long and 1-3 mm in diameter, prostrate, densely hirsute with short appressed hairs and sparsely interspersed with short glandular hairs; stipules subulate, adnate to petioles with apices free, 5 mm long and ±1 mm wide, ciliate. Inflorescence: scape 10-70 mm long, 1-3 mm in diameter, branched, bearing 2-4 pseudo-umbellets with 3-8(-11) flowers each; peduncles 35-85 mm long, 1-2.5 mm in diameter, densely hirsute with distally appressed curly hairs interspersed with long glandular hairs; bracts lanceolate, 4-8 mm long, 1.5-2 mm wide, abaxially hirsute with distally appressed hairs interspersed with glandular hairs; flower buds, flowers and fruits erect. Pedicel ca. 0.5 mm long. Hypanthium 33-66 mm long, pale green, indumentum as on peduncle, hypanthium/sepal ratio 4-10. Sepals 5, lanceolate, apices acute, 6.5-11 mm long, 1.5-3 mm wide, posterior one erect, others reflexed, green to pale reddish brown with margins white, indumentum abaxially as on peduncle. Petals 5, cream-coloured to yellow, claws forming a sheath; posterior two with wine-red feather-like markings, unguiculate-spathulate, bases cuneate, apices emarginate, 14-25 x 3.5-6 mm, length/width ratio smaller than 5.5; anterior three spathulate, bases attenuate, apices rounded, 12-20 x 3-5 mm. Stamens 10, basally connate, staminal column 1.5-2 mm long, white; perfect stamens 5, concealed within the floral sheath, posterior one 2-3.5 mm long, lateral two 3-4.5 mm long, anterior two 4-7 mm long, white; staminodes 2.5-3 mm long; anthers pink, 1.5-2 mm long, pollen orange. Gynoecium: ovary superior, oblong-conical, 5-lobed, 2.5-4 mm long, densely sericeous; style filiform, 0.5-2 mm long, pale green; stigma with 5 recurved branches, 1-2 mm long, adaxially wine-red. Fruit: a schizocarp consisting of 5 mericarps, bases of mericarps ±7 mm long, with glandular hairs, tails ±36 mm long. This species has an apparent long flowering season, from September-December, which is due to the irregular start of the raining season. Sometimes leaves are still present when flowering time starts, but often flowers appear after the leaves have died. From: Marais, EM. 1995. Four species of Pelargonium, section Hoarea (Geraniaceae), and their possible relationships. S. African J. Bot. 61: 90-100. [Copyright held by the South African Association of Botanists (1995); http://www.sciencedirect.com/science/journal/02546299] [CC BY]
Deciduous geophyte, up to 0.2 m high; tuber subterranean, turnip-shaped or elongated. Leaves radical, rosulate, hysteranthous, simple or ternate; lamina ovate, apex acute, margins entire to serrate, revolute 25-95 x 14-48 mm; adaxially and abaxially hirsute with stiff hairs interspersed with long, soft hairs and short glandular hairs; petioles 25-90 mm long. Inflorescence a scape 10-70 mm long, branched, bearing 2-4 pseudo-umbels with 3-8 flowers each; peduncle 35-85 mm long. Hypanthium 33-66 mm long. Sepals 5, lanceolate. Petals 5, cream-coloured to yellow, posterior 2 with red markings, unguiculate-spathulate; anterior 3 spathulate. Stamens 10; perfect stamens 5; staminodes 5; anthers pink; pollen orange. Flowering time Sept.-Dec. Fruit a schizocarp of 5 mericarps. From: Bredenkamp, CL; Retief, E; Masupa, TT. 2019. Geraniaceae. In: CL Bredenkamp (ed.), A Flora of the Eastern Cape Province. Strelitzia 41(2): 1079-1108. South African National Biodiversity Institute, Pretoria. [CC BY]
P. aestivale is a geophyte with simple or ternate, prostrate leaves. The laminae are revolute and the margins entire to serrate. Furthermore, P. aestivale is characterized by the cream-coloured or yellow flowers with short stamens and very long hypanthia (33-66 mm) and a hypanthium/sepal ratio of 4-10. The colour and structure of the flowers resemble those of P. fissifolium. However, leaves of P. fissifolium are usually irregularly bipinnatifid, although juvenile leaves could be simple or tripartite. From: Marais, EM. 1995. Four species of Pelargonium, section Hoarea (Geraniaceae), and their possible relationships. S. African J. Bot. 61: 90-100. [Copyright held by the South African Association of Botanists (1995); http://www.sciencedirect.com/science/journal/02546299] [CC BY]
An area receiving an annual rainfall of 100-300 mm. Plants grow in karroid vegetation on rocky hillsides, but also on flat areas where they are locally common. From: Marais, EM. 1995. Four species of Pelargonium, section Hoarea (Geraniaceae), and their possible relationships. S. African J. Bot. 61: 90-100. [Copyright held by the South African Association of Botanists (1995); http://www.sciencedirect.com/science/journal/02546299] [CC BY]
Karroid vegetation on rocky hillsides and flat areas; Upper Karoo. From: Bredenkamp, CL; Retief, E; Masupa, TT. 2019. Geraniaceae. In: CL Bredenkamp (ed.), A Flora of the Eastern Cape Province. Strelitzia 41(2): 1079-1108. South African National Biodiversity Institute, Pretoria. [CC BY]
P. aestivale is one of the few species of section Hoarea occurring in the Great Karoo. Its distribution area extends from Carnarvon and De Aar in the north to Klaarstroom, north of Meiring's Poort in the south and to Middelburg (Eastern Cape) in the east. From: Marais, EM. 1995. Four species of Pelargonium, section Hoarea (Geraniaceae), and their possible relationships. S. African J. Bot. 61: 90-100. [Copyright held by the South African Association of Botanists (1995); http://www.sciencedirect.com/science/journal/02546299] [CC BY]
September to December
This map contains point-based occurrences at different locations
Occurrence in the Flora of Southern Africa (FSA) countries and South African provinces. Residence status indicates if a taxon is indigenous, endemic, naturalised or invasive in a specific region. This data is based on specimen records and literature
FSA
SA
BOT
NAM
ESW
LES
WC
EC
NC
FS
GA
KZN
LP
MP
NW
Absent
Indigenous
Endemic
Naturalised
Invasive
Names and Sources
Classification
KINGDOM Plantae
SUBKINGDOM Phanerogamae
PHYLUM Anthophyta
ORDER Geraniales
FAMILY Geraniaceae
GENUS Pelargonium
SPECIES aestivale
14 results for Pelargonium aestivale E.M.Marais
Barcode: NBG0212261-0 Collector(s) & number: Lavranos, 20952 | 1982-12-
South Africa, Western Cape, Oudtshoorn. Klaarstroom.
Data Resource: BODATSA View record
Barcode: NBG1568920-0 Collector(s) & number: Jardine, I., 2508 | 2022-11-14
South Africa, Western Cape, Knolfontein, Swartruggens. 60 km NE of ceres.
Data Resource: BODATSA View record
Barcode: NBG1569165-0 Collector(s) & number: Jardine, I., 2508 | 2022-11-14
South Africa, Western Cape, Knolfontein, Swartruggens. 60 km NE of ceres.
Data Resource: BODATSA View record
Barcode: PRE0453563-0 Collector(s) & number: Acocks, JPH, 16533 | 1952-10-28
South Africa, Eastern Cape, MIDDELBURG DIST.; SNEEUBERGE; GORDONVILLE
General notes: Leaves vary from simple to pinnate, dark grey-green. Flowers cream with red marks.
Data Resource: BODATSA View record
Barcode: PRE0672429-0 Collector(s) & number: Du Toit, GJ, 310 | 1984-10-11
South Africa, Northern Cape, HANOVER DIST.; POORTJIESFONTEIN; 10 KM N VAN HANOVER
Data Resource: BODATSA View record
Barcode: NBG0277196-0 Collector(s) & number: Jardine, I, 1754 | 2011-11-23
South Africa, Western Cape, Knolfontein, Swartruggens, 60 km NE of Ceres. 32°52'07.7"S: 19°37'40.2"E. Altitude: 1192 m.
General notes: Fynbos biome. Vegetation type: Arid Mountain Fynbos. Gentle hill slope. Well-drained, rocky and gravel soil. Sandstone. Partial shade. NW aspect. No biotic effect seen. Geophyte. White flowers or pink, 5p, mauve markings on upper 2 flowers in 3's, no leaves visible. 1of 5 sepals adpressed to back of flowers, others reflexed. Some flowerless plants (include two over) do have green leaves herewith. Flowers: present. Fruit: absent. Plant height: 15 cm.
Data Resource: BODATSA View record
Barcode: NBG0209785-0 Collector(s) & number: Oliver, EGH, 5471 | 1974-11-5
South Africa, Western Cape, Central Cape. Graaff Reinet. Doornbosch in Koudeveldberge.
General notes: Rocky south slopes of kopje east of farmhouse. Locally frequent. Flowers cream with red markings,
Data Resource: BODATSA View record
This map contains point-based occurrences at different locations
2019
SERIES CHAPTER
Geraniaceae Bredenkamp, CL; Retief, E; Masupa, TTIn: CL Bredenkamp (ed.), A Flora of the Eastern Cape Province. Strelitzia 41(2)1079-1108
South African National Biodiversity Institute, Pretoria
1997
1995
PERIODICAL/JOURNAL
Four species of Pelargonium, section Hoarea (Geraniaceae), and their possible relationships Marais, EMSouth African Journal of Botany 61: 90-100
No results found for Pelargonium aestivale E.M.Marais
Status and criteria
DD
Assessor(s)
Plantae Coordinator
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