Berkheya radyeri Roessler

Species

Angiosperms > Asterales > Asteraceae > Berkheya

Characteristics

Herba perennis cr. 40 cm alta, rhizomate lignoso. Caulis erectus, in speciminibus adbuc notis simplex, albi-to-mentosus, distanter foliatus internodiis cr. 3-8 cm longis. Folia alterna, basalia compluribus conferta, ambitu oblongi-obovata, apice rotundata, basin versus sensim in petiolum angustata, petiolo incluso cr. 20-30 cm longa, 3-5 cm lata, pinnatilobata lobis in cr. 8-10 iugis dispositis semiorbicularibus margine spinis 1-3 mm longis obsitis, supra spinulis stramineis cr. 0.5-2 mm longis obtecta, subtus leviter araneosi-tomentosa, glabrescentia; folia caulina complura, infimum basalibus simile, sequentia/sessilia, semiamplexicaulia, oblonga, longitudine decrescentia ad cr. 2 cm, ut basalia lobata et spinosi-ciliata, suprema spinosi-dentata, indumento basalibus similia. Capitulum in apice caulis solitarium, radiatum, ligulis expansis cr. 6 cm diam. Involucri squamae patentes, subglabrae, spinosi-acuminatae, exteriores lineari-lanceolatae, cr. 2 mm latae, margine spinosi-dentatae spinis 2-4 mm longis, in interstitiis spinis minoribus ciliatae, sequentes sensim lineari-subulatae, 1-1.5 mm latae, margine spinosi-ciliatae, interiores sensim inermes, margine minutissime denticulatae, mediae cr. 20 mm longae, ceterae breviores. Margines alveolarum receptaculi in setas stramineas cr. 2 mm longas productae. Achaenia cr. 1.5 mm longa, pilis sericeis brevibus dense obtecta. Pappi squamae subbiseriatae, cr. 10+10, anguste lanceolatae, acuminatae, margine denticulatae, ad apicem saepe incisae, cr.0.5 mm latae, 3.5-4 mm longae.
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Perennial herb, up to 400 mm tall. Stems not winged. Basal leaves oblong-obovate, pinnatilobate, lobes with spines, apex rounded, petiolate; cauline leaves sessile, semi-amplexicaul, spinose-ciliate, apex acute. Heads radiate, solitary. Flowers yellow.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.4
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 7-8
Soil acidity -
Soil nutriment -
Hardiness (USDA) -

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

Berkheya radyeri world distribution map, present in South Africa

Identifiers

LSID urn:lsid:ipni.org:names:184617-1
WFO ID wfo-0000136538
COL ID 5WJSN
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Berkheya radyeri