Pelargonium worcesterae Knuth
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Botan. Jahrb. 40 (1908) 75.
Section Chorisma

Habit
Decumbent to sprawling subshrub, up to 150 mm when in flower. Root system tuberous, tubers numerous, spherical, ~10-12 mm in diameter. Stem glandular interspersed with long soft hairs, younger stems herbaceous, older stems woody, covered with remains of stipules, internodes 20-30 mm.



Leaves
Simple, greyish green, lamina reniform to ovate, 13-30 x 15-35 mm, obtuse, base cordate, margin crenate to shallowly lobed, adaxially strigose interspresed with glandular hairs, abaxially lanose interspersed with numerous long and short glandular hairs, petiole 20-50(70) mm. Stipules persistent, prominent, white, free, 2-4 x 3-4 mm, ovate to cordate.


Inflorescence
A 1-3-flowered pseudo-umbel borne on a lateral peduncle 60-115(140) mm long, unbranched, pedicel 1-2(4) mm long.


Sepals
5, lanceolate, 8-10 x 1-3 mm, hypanthium (6)11-12(14) mm.

Petals
5, narrowly clawed, white, posterior two oblanceolate to spathulate, apices rounded to emarginate, 16 x 5 mm, sometimes with pink feather-like markings, anterior three lanceolate, apices rounded, 12 x 3 mm.

Stamens
5 fertile, white, 8-10 mm.

Distribution


Habitat

The landscape around Graaf Reinet, E Cape Province, hides numerous extraordinary plants, both in the plains, where the above photograph of P. worcesterae is from, and in the mountains just above the beautiful town with historic guesthouses and hearthy food, ideal to unwind in the evening.


Winter mornings in the central plains of South Africa can be bitterly cold, with temperatures easily falling beneath -5 oC, but warming up almost instantly after sunrise. Here a half-frozen P. sidoides.

Synonim
rogersianum Knuth

Literature
Dreyer et al. (1993).


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