Arctotis dregei Turcz.

Species

Angiosperms > Asterales > Asteraceae > Arctotis

Characteristics

Tufted herb, 0.05-0.15 m high. Leaves petiolate, entire to pinnatisect, sparsely pilose above, white-tomentose below. Involucre with base rounded; bracts in few rows, outer bracts pilose, acuminate, apex shortly reflexed. Ray florets neuter, sterile, limb pale or bright yellow. Disc florets many, hermaphrodite, corolla yellow or black. Filaments papillose. Flowering time July-Nov. Pappus of scales in 2 unequal series, inner series longer than outer series, scale base narrow, apex rounded, 0.5-1.6 x cypsela length. Cypselae ovoid, tangentially compressed, minutely pubescent, 2 dentate abaxial wings forming a broad elliptic-undulate cavity, basal ring of hairs usually shorter than cypsela.
More
Annual, up to 150 mm tall, stems short or absent. Leaves petiolate, elliptic-obovate to lyrate-pinnatifid, glabrescent to softly hairy above, felted below. Involucre base rounded; outer involucral bracts with shortly reflexed apex, softly hairy. Ray floret limb yellow; disc florets hermaphrodite, yellow or dark. Cypsela obovoid-ellipsoid, bilaterally flattened, 1 broad obovate-elliptic abaxial cavity, wings shortly dentate, pubescent, basal ring of rigid hairs shorter or longer than cypsela; pappus biseriate, inner whorl of 8 scales much longer than outer whorl, outer whorl of usually 6 (rarely 8) scales.
Thinly woolly, tufted annual to 20 cm. Leaves lyrate-pinnatifid, discolorous, grey-felted beneath, roughly hairy above. Flower heads radiate, solitary, disc dark or yellow with yellow rays, ray florets sterile; bracts with rudimentary tail. Achenes with single, undulate cavity.
Life form annual
Growth form herb
Growth support free-standing
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.1 - 0.15
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 1-2
Soil acidity -
Soil nutriment -
Hardiness (USDA) -

Usage

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

Cultivation

Mode -
Germination duration (days) 21 - 35
Germination temperacture (C°) 15 - 21
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Distribution

Arctotis dregei world distribution map, present in South Africa

Identifiers

LSID urn:lsid:ipni.org:names:178573-1
WFO ID wfo-0000065849
COL ID GBT8
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Anemonospermos dregei Arctotheca grandiflora Arctotis dregei