Pelargonium quinquelobatum A. Rich.
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PELARGONIUM NOTES
Tent. Fl. Abyss. 1 (1847) 118
Section Ciconium

Habit

Perennial decumbent, straggling or semiprostrate herb up to 0.75 m. Rootstock usually tuberous, up to 1.4 cm in diameter, stems slender, herbaceous, hollow, mostly covered with a deflexed pubescence intermingled with long patent hairs, angled and often swollen at the nodes, internodes sometimes much reduced in length. 


Credit: ©Roberto Ariu, reproduced with permission of the author.

Leaves
Leaves may be opposite, sometimes alternate especially the lower ones, frequently in basal rosettes, lamina 3- or 5-partite, hastate in outline, 2.5–12.2 cm long, 2–10.5 cm wide, long-haired. Petiole 1.5–18 cm long, covered with short intermingled with long hairs. Stipules linear-lanceolate, 5–10(–15) mm long, 2–3 mm wide at the base, long-haired on the abaxial surface and along the margins, subglabrous on the inner surface, cuspidate (sometimes bifid) at the apex.

Inflorescence
Inflorescence of (2–)4–9 flowers, peduncles 6–36 cm long, mostly leaf-opposed, pubescent with short and long hairs, free part of the pedicel 2–6 mm long, bracts usually more than the number of the flowers, linear-lanceolate, 5–10 mm long, 1–1.5 mm wide, covered with few but long hairs. 

Credit: ©Roberto Ariu, reproduced with permission of the author.
 

Sepals
Sepals linear-lanceolate, lorate or narrowly oblong, 6–12 mm long, 1–3 mm wide, glandular and rather pubescent, ciliate and hyaline along the margins. Hypanthium 15–35 mm long, adnate nearly to the base, hispid and glandular.

Petals
Petals 5, oblong-spathulate, greenish-yellow, creamy-green, pale lemon greenish-white, or just green with purple veining at the base of the posterior petals, the 2 posterior ones 9–16 mm long, 4–6 mm wide, the 3 anterior ones 7–12 mm long, 3.5–5 mm wide. 

Stamens
Stamens connate at the base for 1–2.5 mm, crimson to purple, 7 fertile stamens, 2–5 mm long, staminodes 3, 1–1.8 mm long. Anthers 1.1–1.6 mm long, 0.6–0.8 mm wide, red. 

Distribution
Tanzania, Uganda, Kenya, Ethiopia, Somalia.

Habitat

Near Handeni, Tanzania.
Credit: ©Roberto Ariu, reproduced with permission of the author.


Synonyms
fischeri Engl.
inaequelobum Mast.
somalense Franch.
quinquelobatum Chiov. var. migiurtinorum

Literature
O. Kokwaro, Flora of Tropical East Africa (1971).

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