Trieenea frigida Hilliard
LC Indigenous Endemic

Morphological description

Herb, possibly annual, well branched from the base, base woody, stems there up to 1.25 mm in diam., diffuse, leafy except below the inflorescences, glandular-pilose, hairs patent, up to 1-1.5 mm long. Leaves opposite, uppermost one on each twig sometimes solitary, blade c. 7-12 x 6-9 mm, elliptic or ovate, base cuneate, tapering into a flat petiolar part 3-5 mm long, roughly half length of blade, upper margins with 2-3 pairs of coarse teeth, both surfaces glandular-pilose, hairs up to 2 mm long. Flowers up to c. 15 in lax racemes, each terminating a bare peduncle up to 40 mm long at tips of branches. Bracts at base of inflorescence c. 5-7 x 1-2 mm, spathulate or almost leaf-like, smaller and narrower upwards, adnate to pedicel and calyx tube, pubescent all over, hairs gland-tipped, up to 1-1.5 mm long. Pedicels up to 0.75-2 mm long. Calyx tube 0.25-0.5 mm long, anticous lobe c. 3.25-4 x 0.5-0.75 mm, anticous lip split c. 3.25-4 mm, whole calyx glandular-pilose, hairs up to 0.75 mm long. Corolla tube c. 4.5 x 1 mm, broadening slightly in throat, limb c. 4 mm across lateral lobes, posticous lobes c. 1.5 x 1 mm, anticous lobe c. 2 x 1 mm, all lobes elliptic, very sparsely and minutely glandular-puberulous outside, glabrous inside, colour unknown but possibly white with an orange patch running down back of corolla tube. Stamens 4, anticous pair exserted, posticous pair included, filaments decurrent nearly to base of tube, anthers c. 0.5 mm long. Stigma probably exserted. Capsules 3-4.5 x 2 mm Seeds c. 6-10 in each loculus, c. 0.6-0.75 x 0.5 mm, sinuously wrinkled in longitudinal bands, pallid amber. From: Hilliard, OM. 1994. The Manuleae: a tribe of Scrophulariaceae. Edinburgh University Press, Edinburgh. [All rights reserved]

Glandular-hairy ?annual. Leaves opposite. Flowers in lax racemes, tube short and minutely glandular-hairy, colour unknown. From: Manning, JC; Goldblatt, P. 2012. Scrophulariaceae: Trieenea Hilliard. In: J Manning & P Goldblatt (eds), Plants of the Greater Cape Floristic Region 1: The Core Cape flora. Strelitzia 29: 761-762. South African National Biodiversity Institute, Pretoria. [CC BY]

Diagnostic description

The very long hairs on stems, leaves and bracts (1-2 mm) and the pair of included stamens at once distinguish T. frigida from its allies, T. schlechteri and T. elsiae. Trieenea frigida and T. schlechteri are almost certainly sympatric and as all the species in this genus favour similar habitats, careful collecting is needed: the two species are much alike in facies, but the lowermost bracts in T. frigida are either leaflike or spathulate; they are always ± linear in T. schlechteri and less than 1 mm broad. From: Hilliard, OM. 1994. The Manuleae: a tribe of Scrophulariaceae. Edinburgh University Press, Edinburgh. [All rights reserved]

Habitat

Mountains. From: Hilliard, OM. 1994. The Manuleae: a tribe of Scrophulariaceae. Edinburgh University Press, Edinburgh. [All rights reserved]

Sheltered, upper sandstone slopes. From: Manning, JC; Goldblatt, P. 2012. Scrophulariaceae: Trieenea Hilliard. In: J Manning & P Goldblatt (eds), Plants of the Greater Cape Floristic Region 1: The Core Cape flora. Strelitzia 29: 761-762. South African National Biodiversity Institute, Pretoria. [CC BY]

Distribution

Trieenea frigida is known only from the type collection made by Miss Elsie Esterhuysen in the Cold Bokkeveld Mountains. From: Hilliard, OM. 1994. The Manuleae: a tribe of Scrophulariaceae. Edinburgh University Press, Edinburgh. [All rights reserved]

Cold Bokkeveld Mtns. From: Manning, JC; Goldblatt, P. 2012. Scrophulariaceae: Trieenea Hilliard. In: J Manning & P Goldblatt (eds), Plants of the Greater Cape Floristic Region 1: The Core Cape flora. Strelitzia 29: 761-762. South African National Biodiversity Institute, Pretoria. [CC BY]

Flowering time

January

Altitude

0 to 1525 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
Trieenea frigida Hilliard
Synonym(s)

Classification

KINGDOM Plantae

SUBKINGDOM Phanerogamae

SPECIES frigida

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Specimen records

Barcode: PRE0139387-0 Collector(s) & number: Esterhuysen, EE, 18445 | 1951-3-25

South Africa, Western Cape, Ceres Div.; [3219CA?] Cold Bokkeveld Mts at Eland's Kloof.

General notes: Shelf under rock at S.W. side of ridge.

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:

2012

SERIES CHAPTER

Scrophulariaceae: Trieenea Hilliard Manning, JC; Goldblatt, P

In: J Manning & P Goldblatt (eds), Plants of the Greater Cape Floristic Region 1: The Core Cape flora. Strelitzia 29: 761-762

South African National Biodiversity Institute, Pretoria

1994

BOOK

The Manuleae: a tribe of Scrophulariaceae Hilliard, OM

Edinburgh University Press, Edinburgh

No results found for Trieenea frigida Hilliard

Status

Status and criteria

LC

Assessor(s)

Plantae Coordinator

Bibliography

JOURNAL ARTICLE
Hall, A.V. 1987. Evidence of a Cretaceous alliance for the Bruniaceae. South African Journal of Science. 83:58-59

JOURNAL ARTICLE
Hall, A.V. 1989. Acrolophia ustulata. Flowering Plants of Africa. 50:t. 1994

BOOK SECTION
Hall, A.V. 1999. Eulophia. Edited by H.P. Linder and H. Kurzweil. Orchids of southern Africa. A.A. Balkema

BOOK SECTION
Hall, A.V. 1999. Satyrium. Edited by H.P. Linder and H. Kurzweil. Orchids of southern Africa. A.A. Balkema

REPORT
Hall, A.V. and Ashton, E.R. 1983. Threatened plants of the Cape Peninsula. Threatened Plants Research Group, University of Cape Town

GENERIC
Hall, A.V., De Winter, M., De Winter, B. and Van Oosterhout, S.A.M. 1980. Threatened plants of southern Africa. South African National Scienctific Programmes Report. CSIR. 45

JOURNAL ARTICLE
Hall, A.V., Oliver, E.G.H. and Claßen-Bockhoff, R. 2010. Bruniaceae: New species of Thamnea and Brunia from Western Cape, South Africa. Bothalia. 40:96-101

GENERIC
Hall, A.V. and Veldhuis, R.N.J. 1985. South Arican red data book: Plants - Fynbos and Karoo biomes. South African National Scientific Programmes Report. CSIR. 117

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