Dicerothamnus adpressus (Harv.) Koek.

Species

Angiosperms > Asterales > Asteraceae > Dicerothamnus

Characteristics

A low, erect shrub up to 0.45 m tall, with rigid, whip-like branches and a yellow-green colour; leaves, branches and outer involucre woolly-hairy when young. Brachyblasts short, developing below the terminal inflorescence. Leaves generally lanceolate, narrow, ericoid, closely adpressed to the branches, sparse or dense, but rarely overlapping, 2.0-2.5(-5.0) x 0.5 mm, very densely glandular underneath a woolly-hairy overlayer, glands on very short stalks, almost sessile; hairs becoming drenched in glandular exudate and appearing shiny and smooth with age. Capitula homogamous, discoid, 3-(or 4-)flowered, solitary in the last 1-20 terminal leaf axils on flowering shoots, often arranged in a spike-like manner; occasionally compound inflorescences are found with capitula on brachyblasts below terminal inflorescences. Receptacle small, conical and stalk-like. Involucral bracts ± 15, glandular on adaxial side; outer bracts ± 10, foliaceous, 1.0-3.5 x up to 0.5 mm; innermost bracts ± 5 in a single row, hyaline, papery, up to 5 x up to 1 mm, tips acute. Disc florets up to 4 mm long, lower half tough and cells distinctly thickened, lobes remaining straight during anthesis. Cypselas asymmetrical, smooth on outer side, with 4 ribs on inner side, outer coat tough and often pinkish; inner coat a soft, thin brown layer. Pappus of 14-18 setae, fused in the lower fifth, plumose almost from the base, plumes of even lengths, ascending, tufted at the tips.
More
Low, erect shrub, up to 0.45 m high, with rigid, whip-like branches and a yellow-green colour. Brachyblasts short. Leaves ericoid, closely appressed, 2.0-2.5(-5.0) mm long, at least 5x longer than wide, very densely glandular underneath woolly hairs. Capitula 3(4)-flowered, solitary in the upper 1-20 leaf axils, often arranged spike-like; involucral bracts ± 15, innermost bracts ± 5 in a single row, hyaline, up to 5 x 1 mm, apex acute. Florets up to 4 mm long. Flowering time mainly from Feb.-May, occasionally June-Sept. Pappus of 14-18 bristles. Cypselae bilaterally symmetric, smooth on outer side, with 3 ribs on inner side.
Like E. rhinocerotis but leaves linear-ericoid and flower heads several in short spikes terminating shoots, not on lateral branches.
Life form -
Growth form shrub
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 -
Soil texture 6-7
Soil acidity -
Soil nutriment -
Hardiness (USDA) 9-11

Usage

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

Cultivation

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

Distribution

Dicerothamnus adpressus world distribution map, present in South Africa

Identifiers

LSID urn:lsid:ipni.org:names:77197863-1
WFO ID wfo-0000096072
COL ID 7VHG5
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Dicerothamnus adpressus