Emilia transvaalensis (Bolus) C.Jeffrey

Species

Angiosperms > Asterales > Asteraceae > Emilia

Characteristics

Annual herb or suffrutex (occasionally perennial), 15-45 cm tall. Stems branching, cobwebby, especially around the axils of younger leaves, glabrescent, striate. Leaves closely clustered, linear-elliptic or narrowly to broadly oblanceolate to oblong, 15-50 x 2-10, glaucous, grey-green or pale green, slightly fleshy, cobwebby when young, especially on lower surface, glabrescent; apex acute to obtuse; base clasping, sessile; margins entire (occasionally dentate in the upper half of the leaf). Capitula solitary on long naked peduncles, discoid, homogamous, 4.5-10 mm in diameter (at apices of involucral bracts when pressed) with 15-35 florets, peduncles glabrous, (50-)80-240 mm long. Involucre campanulate, phyllaries green with pale scarious margins, 4.5-7 x 1.5-2(-3) mm, glabrous. Disc florets pale pink, lilac or mauve, corolla 5-7.5 mm long with narrow tube to half or slightly more than half the length (2.5-4 mm long) with glandular lobes 1-1.7 mm long; stamens: anthers c. 2 mm long with narrow acute appendage, filament collar balusterform; style branches c. 0.8 mm long, apices rounded to truncate, fringed by short papillae. Cypselas 3.5-4.5 mm long, cylindric, 5-angled, dark brown to black with short white duplex hairs along the ribs, mucilaginous when wet, pappus white, 3-5 mm long, bristles caducous.
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A bushy annual herb up to 45 cm high, stems woody, leafy. Leaves crowded, up to 6 x 1.5 cm, oblong to elliptic, apex subacute, base broad, clasping, margins entire, slightly fleshy, glaucous or pale green, very thinly cobwebbed at first, later glabrous or nearly so. Heads discoid, solitary on very long (up to 20 cm) nude peduncles in the upper leaf axils. Involucre campanulate, bracts 6-7, oblong, subacute, 5-6.5 mm long, reaching to the base of the campanulate part of the flowers, glabrous, calyculus wanting. Flowers lilac, style branches truncate, penicillate, with a short tail. Achenes 4 mm long, cylindric, S-angled, blackish with white clavate hairs along the angles, becoming mucilaginous when wet, pappus caducous.
Annual herb, up to 450 mm tall. Leaves oblong to elliptic, base broad, clasping, margins entire; slightly fleshy; thinly cobwebby at first, glabrescent. Heads solitary, discoid; involucral bracts 6 or 7, 5.0-6.5 mm long. Achenes with white clavate hairs on angles. Flowers pink to lilac.
Life form annual
Growth form herb
Growth support free-standing
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.45
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light -
Soil humidity 10-12
Soil texture 4-7
Soil acidity -
Soil nutriment -
Hardiness (USDA) 9-12

Usage

Uses -
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Mode -
Germination duration (days) 8 - 15
Germination temperacture (C°) 21
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Emilia transvaalensis unspecified picture

Distribution

Emilia transvaalensis world distribution map, present in Botswana, Mozambique, eSwatini, South Africa, and Zimbabwe

Identifiers

LSID urn:lsid:ipni.org:names:943117-1
WFO ID wfo-0000002298
COL ID 39GXZ
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Senecio transvaalensis Senecio thermarum Emilia transvaalensis