Triglochin bulbosa L. subsp. quarcicola Mering, Kocke & Kadereit
VU Indigenous Endemic

Morphological description

Plants 5-20 cm high, delicate, slender, with small, fusiform bulbs; bulbs covered in dry, soft or stiff brown fibres, these 1-2 cm long. Leaves uniform, as long as or shorter than infructescence, very narrow, about 0.5-1 mm wide. Inflorescences lax, with 4-15(-25) flowers. Flowers (1.5-)2-3 mm long. Pedicels shorter than fruit at fruiting time, 2-5 mm long, held at angles of almost 90o from the inflorescence axis, usually not curved inwards towards the apex. Infructescences lax, axis sometimes flexuose. Infructescences 3-8 cm long. Fruits very narrowly ovoid (to almost ellipsoid), 5-8 mm long, 0.5-1 mm wide. Mericarps linear, sometimes with short basal spurs, connate; tips not curved outwards. Carpophore very thin or lacking. From: Kocke, AV; von Mering, S; Mucina, L; Kadereit, JW. 2010. Revision of the Mediterranean and southern African Triglochin bulbosa complex (Juncaginaceae). Edinburgh J. Bot. 67(3): 353-398. [doi:10.1017/S0960428610000041] [All rights reserved]

Diagnostic description

Triglochin bulbosa subsp. quarcicola differs from the other subspecies in having lax inflorescences with 4-15(-25) flowers and pedicels diverging mostly at angles of 90° from the inflorescence axis. From: Kocke, AV; von Mering, S; Mucina, L; Kadereit, JW. 2010. Revision of the Mediterranean and southern African Triglochin bulbosa complex (Juncaginaceae). Edinburgh J. Bot. 67(3): 353-398. [doi:10.1017/S0960428610000041] [All rights reserved]

Habitat

The subspecies is restricted to saline quartz fields, especially the dry slopes of koppies, covered with a layer of white, angular quartz gravel. The vegetation housing populations of Triglochin bulbosa subsp. quarcicola is a dwarf succulent shrubland, rich in succulent shrubs and `stone plants' (Knersvlakte Quartz Vygieveld). The climate of the Knersvlakte is typical for winter-rainfall semidesert, with mean annual precipitation of around 120 mm and mean annual temperature of about 18oC. From: Kocke, AV; von Mering, S; Mucina, L; Kadereit, JW. 2010. Revision of the Mediterranean and southern African Triglochin bulbosa complex (Juncaginaceae). Edinburgh J. Bot. 67(3): 353-398. [doi:10.1017/S0960428610000041] [All rights reserved]

Distribution

Triglochin bulbosa subsp. quarcicola is only found in the Western Cape Province of South Africa and appears to be endemic to the Knersvlakte (a major centre of plant endemism of the country), a slightly undulating, low-lying basin in southern Namaqualand (near the town of Vanrhynsdorp). Triglochin bulbosa subsp. quarcicola is the only subspecies of Triglochin bulbosa found outside the Fynbos Biome. From: Kocke, AV; von Mering, S; Mucina, L; Kadereit, JW. 2010. Revision of the Mediterranean and southern African Triglochin bulbosa complex (Juncaginaceae). Edinburgh J. Bot. 67(3): 353-398. [doi:10.1017/S0960428610000041] [All rights reserved]

Flowering time

July to August

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
Triglochin bulbosa L. subsp. quarcicola Mering, Kocke & Kadereit

Published in: Edinburgh J. Bot. 67(3): 379 (2010)

Type: South Africa, Western Cape, Vanrhynsdorp Div., farm Moedverloren, Knersvlakte Conservation Area, BIOTA Biodiversity Observatory No 28 (Moedverloren), 1-9-2008, Schmiedel 124811 (MJG, holo.; NBG, iso.)

Synonym(s)

Classification

KINGDOM Plantae

SUBKINGDOM Phanerogamae

SPECIES bulbosa

SUBSPECIES quarcicola

3 results for Triglochin bulbosa L. subsp. quarcicola Mering, Kocke & Kadereit

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Specimen records

Barcode: NBG0095302-0 Collector(s) & number: Hall, H, 4124 | 1971-8-23

South Africa, Western Cape, Vredendal. Moedverloor, 16 miles N. of Vredendal.

General notes: Quartzite gravel slopes. Flowering in May, 1972 in cultivation.

Data Resource: BODATSA View record

Barcode: NBG0122565-0 Collector(s) & number: Hall, H, 5078 | 1981-8-5

South Africa, Western Cape, Vanrhynsdorp. Farm Moedverloor.

General notes: Very stony slope.

Data Resource: BODATSA View record

Barcode: NBG0194614-0 Collector(s) & number: Le Roux, A, 2205 | 1977-8-10

South Africa, Western Cape, 7 Km N of Hol river railway station on the farm Klipdrift, Lutzville.

General notes: White quartz koppie. Steep slope, full sun, W aspect. Well drained sand/loam. Karoo vegetation. Rare, 8cm tall, perennial hemicryptophyte, flowers purple, leaves deciduous.

Data Resource: BODATSA 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:

No results found for Triglochin bulbosa L. subsp. quarcicola Mering, Kocke & Kadereit

Status

Status and criteria

VU

Assessor(s)

Plantae Coordinator

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

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