Vexatorella latebrosa Rourke
LC Indigenous Endemic

Morphological description

An erect shrub 1-2 m in height with a single straight main trunk 20-35 mm in diam., usually branching at about 450 mm to form a rounded, divaricate crown up to 1 m in diam. Flowering branches 2-5 mm in diam., initially villous with short crisped trichomes interspersed, later glabrous. Leaves spreading to loosely ascending, entire, linear-spathulate, 50-65 mm long, 2-3 mm wide tapering in petiolar region, upper surface concave to broadly channelled, apex obtuse with a single reddish callus; surface densely villous to puberulous at first, glabrous when mature. Inflorescence a solitary terminal globose capitulum 25-30 mm in diam., sessile to shortly pedunculate, peduncle to 10 mm long; capitulum usually consisting of 40-50 flowers. Receptacle depressed-ovoid 6-8 mm in diam. Involucral bracts loosely 2-3-seriate, lanceolate-acuminate, 8-10 mm long, 2-3 mm broad at base, very densely villous. Perianth 15-18 mm long, straight in bud, actinomorphic; tube quadrangular, glabrous, 3-4 mm long; claws slender becoming coiled distally after anthesis, densely villous, carmine in live state; limbs very narrowly lanceolate-cymbiform, acute, 3 mm long, densely villous-hirsute. Anthers sessile, narrowly lanceolate-linear, connective prolonged into a distinct black apical boss. Floral bracts oblanceolate, acute to acuminate, tightly clasping perianth, 6-8 mm long, 2-3 mm wide, very densely lanate except at apex, enlarging and becoming woody if subtending a developing fruit. Style 15-18 mm long, straight, not elongating at anthesis, glabrous, with a prominent swelling at base; carmine in live state. Pollen presenter prominently clavate, 2 mm long, slightly annulate at junction with style, stigmatic groove terminal. Ovary oblong-lageniform, 3 mm long, puberulous. Hypogynous scales filiform-subulate, hyaline, 2 mm long, Fruit an oval, minutely puberulous to glabrous achene, 8-10 mm long, 4 mm wide, beaked at stylar end, obtuse and wrinkled at base. Flowering takes place in August and September, with the fruits ripening and dehiscing during late October and early November. The flowers are pink to carmine and sweetly scented. From: Rourke, JP. 1984. Vexatorella Rourke, a new genus of the Proteaceae from southern Africa. J. S. African Bot. 50: 373-391. [CC BY]

Single-stemmed, rounded shrub to 2 m. Leaves linear to spathulate, 50-60 mm long. Flower heads solitary, terminal, pink to carmine, fragrant, 25-30 mm diam. From: Manning, JC; Goldblatt, P. 2012. Proteaceae. In: J Manning & P Goldblatt (eds), Plants of the Greater Cape Floristic Region 1: The Core Cape flora. Strelitzia 29: 657-681. South African National Biodiversity Institute, Pretoria. [CC BY]

Diagnostic description

This species is readily distinguished by its linear-spathulate leaves, 50-65 mm long and conspicuously villous to puberulous at first, though later glabrescent. From: Rourke, JP. 1984. Vexatorella Rourke, a new genus of the Proteaceae from southern Africa. J. S. African Bot. 50: 373-391. [CC BY]

Habitat

Thus far, it is only known from a few populations dispersed over an area of several square kilometres, at elevations between 400 and 900 m. Although locally common, no records have been made outside this highly restricted distribution area. A steep south west-facing aspect is favoured on heavy reddish clay soils derived from Malmesbury shale. Most populations of this species occur in low fynbos or on the ecotone between mountain renosterbosveld and fynbos. At maturity V. latebrosa is a densely branched, rounded shrub, 1-2 m in height with a single main trunk up to 35 mm in diameter. This species is not fire-resistant. Regeneration after burning is by seed. From: Rourke, JP. 1984. Vexatorella Rourke, a new genus of the Proteaceae from southern Africa. J. S. African Bot. 50: 373-391. [CC BY]

Clay, lower slopes. From: Manning, JC; Goldblatt, P. 2012. Proteaceae. In: J Manning & P Goldblatt (eds), Plants of the Greater Cape Floristic Region 1: The Core Cape flora. Strelitzia 29: 657-681. South African National Biodiversity Institute, Pretoria. [CC BY]

Distribution

Vexatorella latebrosa is a very localised endemic confined to middle slopes of the Langeberg near Klaasvoogds in the Robertson area of the south western Cape. From: Rourke, JP. 1984. Vexatorella Rourke, a new genus of the Proteaceae from southern Africa. J. S. African Bot. 50: 373-391. [CC BY]

Langeberg: Robertson. From: Manning, JC; Goldblatt, P. 2012. Proteaceae. In: J Manning & P Goldblatt (eds), Plants of the Greater Cape Floristic Region 1: The Core Cape flora. Strelitzia 29: 657-681. South African National Biodiversity Institute, Pretoria. [CC BY]

Flowering time

October

Altitude

400 to 900 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

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Names and Sources

Accepted name
Vexatorella latebrosa Rourke

Published in: J. S. African Bot. 50(3): 386 (1984)

Synonym(s)

Classification

KINGDOM Plantae

SUBKINGDOM Phanerogamae

SUBFAMILY Proteoideae

SPECIES latebrosa

16 results for Vexatorella latebrosa Rourke

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Specimen records

Barcode: NBG0122631-1 Collector(s) & number: Rourke, JP, 1749 | 1981-10-20

South Africa, Western Cape, South-west slopes of the Langeberg above Klaasvoogds West, on a ridge between Tweevlerkbos and Middelrug, approached from Bergendal Farm.

Data Resource: BODATSA View record

Barcode: PRE0654519-2 Collector(s) & number: Rourke, JP, 1780 | 1982-9-1

South Africa, Western Cape, MONTAGU, ROBERTSON; BERGENDAL FARM; KLAASVOOGDS, ON SW SLOPES OF LANGEBERG ON RIDGE BTWN. TWEEVLERKBOS AND MIDDELRUG

Data Resource: BODATSA View record

Barcode: PRE0653340-0 Collector(s) & number: Rourke, JP, 1808 | 1983-11-1

South Africa, Western Cape, BERGENDAL FARM; ABOVE KLAASVOOGDS NEAR ROBERTSON. SLOPES OF LANGEBERG ABOVE TWEEVLERKBOS

Data Resource: BODATSA View record

Barcode: NBG0240948-0 Collector(s) & number: Grobler, PJ, 527 | 1965-9-16

South Africa, Western Cape, Ceres Dist. Kareevlakte. Watervalsberg.

Data Resource: BODATSA View record

Barcode: NBG0122631-3 Collector(s) & number: Rourke, JP, 1749 | 1981-10-20

South Africa, Western Cape, South-west slopes of the Langeberg above Klaasvoogds West, on a ridge between Tweevlerkbos and Middelrug, approached from Bergendal Farm.

Data Resource: BODATSA View record

Barcode: NBG0127473-3 Collector(s) & number: Rourke, JP, 1780 | 1982-9-1

South Africa, Western Cape, Montagu. Bergendal farm, Klaasvoogds, near Robertson, on south-west slopes of Langeberg on a ridge between Tweevlerkbos and Middelrug.

Data Resource: BODATSA View record

Barcode: NBG0127473-1 Collector(s) & number: Rourke, JP, 1780 | 1982-9-1

South Africa, Western Cape, Montagu. Bergendal farm, Klaasvoogds, near Robertson, on south-west slopes of Langeberg on a ridge between Tweevlerkbos and Middelrug.

Data Resource: BODATSA View record

Barcode: PRE0654519-1 Collector(s) & number: Rourke, JP, 1780 | 1982-9-1

South Africa, Western Cape, MONTAGU, ROBERTSON; BERGENDAL FARM; KLAASVOOGDS, ON SW SLOPES OF LANGEBERG ON RIDGE BTWN. TWEEVLERKBOS AND MIDDELRUG.

Data Resource: BODATSA View record

Barcode: PRE0294746-0 Collector(s) & number: Rourke, JP, 1780 | 1982-9-1

South Africa, Western Cape, Montagu District: Bergendal Farm; Klaasvoogds, near Robertson, on South-West slopes of Langberg on a ridge between Tweevlerkbos and Middelrug..

General notes: Locally common. ISOTYPE

Data Resource: BODATSA View record

Barcode: NBG0272138-0 Collector(s) & number: Helme, NA, 7225 | 2011-10-4

South Africa, Western Cape, Langeberg east of Robertson. Rondgangers Kraal 29, slopes of ridge west of Middelrug. Lat 33° 45' 30.5"S; Long: 19° 59' 59.7"E.

General notes: Very locally common. Estimated 1000-1500 plants.

Data Resource: BODATSA View record

Barcode: NBG0128097-0 Collector(s) & number: Rourke, JP, 1808 | 1983-11-1

South Africa, Western Cape, Bergendal Farm, above Klaasvoogds near Robertson. South slopes of Langeberg above Tweevlerkbos.

Data Resource: BODATSA View record

Barcode: NBG0127473-2 Collector(s) & number: Rourke, JP, 1780 | 1982-9-1

South Africa, Western Cape, Montagu. Bergendal farm, Klaasvoogds, near Robertson, on south-west slopes of Langeberg on a ridge between Tweevlerkbos and Middelrug.

Data Resource: BODATSA View record

Barcode: NBG0122631-2 Collector(s) & number: Rourke, JP, 1749 | 1981-10-20

South Africa, Western Cape, South-west slopes of the Langeberg above Klaasvoogds West, on a ridge between Tweevlerkbos and Middelrug, approached from Bergendal Farm.

Data Resource: BODATSA View record

Observation records

Date: 8/16/2009 12:00:00 AM

Western Cape, South Africa

Data Resource: iNaturalist View record

Date: 10/4/2011 12:00:00 AM

Western Cape, South Africa

Data Resource: iNaturalist View record

Date: 4/7/2016 12:00:00 AM

Western Cape, South Africa

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:

2012

SERIES CHAPTER

Proteaceae Manning, JC; Goldblatt, P

In: J Manning & P Goldblatt (eds), Plants of the Greater Cape Floristic Region 1: The Core Cape flora. Strelitzia 29: 657-681

South African National Biodiversity Institute, Pretoria

1984

PERIODICAL/JOURNAL

Vexatorella Rourke, a new genus of the Proteaceae from southern Africa Rourke, JP

Journal of South African Botany 50: 373-391

No results found for Vexatorella latebrosa Rourke

Status

Status and criteria

LC

Assessor(s)

Plantae Coordinator

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

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