Anacampseros retusa Poelln. subsp. lanuginosa G.Will.
Appendix II Indigenous Endemic

Morphological description

Plant with above ground portion up to 37 mm high and 17 mm across (not including inflorescence) but often much shorter; stem ca. 15 mm high x 20 mm broad, branches up to 3, 7 mm x 10 mm broad. Leaves in a tight rosette 12-17 mm across; leaf 5 x 5 mm with narrow, very light green base merging into a dark green, finely tuberculate, subapical portion, apex maroon-brown, retuse with rugose to tuberculate epidermis and covered with an extremely dense, mass of entwined web, of very fine white hairs, about 1.5 mm thick. Flowers can be quite large and up to 17 mm across. Seeds are typical of the retusa group. From: Williamson, G. 2003. Notes on Anacampseros retusa Poelln. (Portulacaceae) with descriptions of two new forms and one subspecies. Excelsa 20: 27-33. [All rights reserved]

Diagnostic description

This remarkable new subspecies is completely separate from the other forms of A. retusa. The woolly covering of densely entwined long hairs is not seen in any other form or the typical subspecies. A further interesting feature is the thick stem and branches which act as storage organs. The tubers are not well developed as is often seen in the typical subspecies. The large storage tubers of other forms are illustrated in the Alexander Bay plants and in the parva forms. The thick, almost impenetrable cover of lanugo gives full protection from the sun’s penetrating rays and also acts as a trap for storing moisture condensation and provides protection from the occasional ferocious winds. From: Williamson, G. 2003. Notes on Anacampseros retusa Poelln. (Portulacaceae) with descriptions of two new forms and one subspecies. Excelsa 20: 27-33. [All rights reserved]

Habitat

The Knersvlakte is a mosaic of bright, quartz, pebbly flats and low, undulating hills. The altitude is from about 100 to 300 m and the whole area arid. Annual rainfall is between 60 and 150 mm which falls mainly in winter but the whole area is periodically bathed in light fogs which flow in from the western Atlantic seaboard. Summer temperatures can be in the upper 30°s to early 40°C, often tempered by the cold Atlantic fogs. There are occasionally seasonal flash floods in mid to late summer. Phyllite-schistose outcrops, quartz intrusive dykes and quartz depression pebbly pavements coupled with the strange climatic extremes allows for the existence of a unique succulent flora. The whole area is host to numerous endemics. From: Williamson, G. 2003. Notes on Anacampseros retusa Poelln. (Portulacaceae) with descriptions of two new forms and one subspecies. Excelsa 20: 27-33. [All rights reserved]

Distribution

Republic of S. Africa, Western Cape Province. From: Williamson, G. 2003. Notes on Anacampseros retusa Poelln. (Portulacaceae) with descriptions of two new forms and one subspecies. Excelsa 20: 27-33. [All rights reserved]

Altitude

100 to 300 m

Occurrence records map

This map contains point-based occurrences at different locations

iNaturalist: BODATSA: Data partners records:

Residence status

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

Accepted name
Anacampseros retusa Poelln. subsp. lanuginosa G.Will.

Published in: Excelsa 20: 29 (2003)

Synonym(s)

Classification

KINGDOM Plantae

SUBKINGDOM Phanerogamae

SPECIES retusa

SUBSPECIES lanuginosa

3 results for Anacampseros retusa Poelln. subsp. lanuginosa G.Will.

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Observation records

Date: 10/14/2022 10:01:00 AM

Western Cape

Data Resource: iNaturalist View record

Date: 4/23/2023 4:24:00 PM

Northern Cape

Data Resource: iNaturalist View record

Date: 4/20/2023 10:54:00 AM

Northern Cape

Data Resource: iNaturalist View record

Plant occurence records per dataset

Plant occurence records per year

Occurrence records map

This map contains point-based occurrences at different locations

iNaturalist: BODATSA: Data partners records:

2003

PERIODICAL/JOURNAL

Notes on Anacampseros retusa Poelln. (Portulacaceae) with descriptions of two new forms and one subspecies Williamson, G

Excelsa 20: 27-33

1997

BOOK

List of southern African succulent plants Smith, GF

Umdaus Press, Pretoria

No results found for Anacampseros retusa Poelln. subsp. lanuginosa G.Will.

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Part(s) of plant used Use(s) Reference

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