Dicoma schinzii O.Hoffm.

Species

Angiosperms > Asterales > Asteraceae > Dicoma

Characteristics

Perennial herb, up to 200 mm high; semi-procumbent or suberect. Leaves alternate, distinctly petiolate; blade elliptic to ovate-elliptic, up to 80 x 24 mm, apex acute, base cuneate, margins serrulate, both surfaces greyish or suffused brownish lanate, concolorous; petiole up to 16 mm long. Heads disciform, solitary, axillary, sessile or subsessile. Involucral bracts many, imbricate; outer bracts with long, subulate tip, often squarrose; inner bracts with acute-pungent tip. Flowers: outer female florets filiform; disc florets distinctly shorter than pappus, whitish or reddish; Nov.-Apr., Jun. Fruit with cypsela narrowly turbinate, 10-ribbed, densely hairy. Pappus of 2 kinds, outer of barbellate bristles, inner scale-like, becoming undulatewinged towards base, upper part ciliolate.
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Inner florets c. 15, corollas whitish or reddish-tinged, 5–7 mm. long, infundibuliform, sparsely puberulous, limb 4–5 mm. long with erect linear lobes 3–4 mm. long, lobes subacute and sometimes recurved at the apex; achenes c. 4.5 mm. long, narrowly turbinate, strongly 10-ribbed, uniformly densely appressed-ascending setose between the ribs, the bristles less than half the achene in length, the lowermost tuft of hairs shorter and more numerous often spreading; pappus 2-seriate, the outer of 10–20 slender barbellate setae 7–11 mm. long, the inner of 5–6 more robust very narrowly scale-like setae, 7–12 mm. long, broadly membranous undulate-winged towards the base and ciliolate particularly in the upper part.
Leaves with a petiole up to c. 16 mm. long, broadly canaliculate, lanate; lamina mostly 1–8 x 0.5–2.4 cm., narrowly to broadly elliptic, acute at the apex, cuneate below, margins obscured subserrate with callose teeth, greyish-lanate on the upper surface and more densely so beneath; the greyish indumentum occasionally intermixed with brownish hairs, margins and midrib beneath often markedly brownish-lanate.
Semiprostrate or suberect perennial herb, up to 200 mm tall. Leaves petiolate, lamina elliptic to ovate-elliptic, margins entire, greyish or suffused brownish lanate, concolorous. Heads axillary, sessile or subsessile; neuter ray flowers present, rudimentary. Pappus 2-seriate, ciliate, inner becoming undulate-winged towards base. Flowers with whitish or reddish disc.
Phyllaries numerous, stiffly chartaceous with narrow membranous margins, ± sharply ciliolate; the outer phyllaries from c. 5 mm. long, subulate-aristate, sparsely lanate, tapering to a long curved or straight apical bristle; the inner phyllaries to c. 26 mm. long, linear-lanceolate, tapering to a straight narrowly acute-pungent apex, glabrescent.
Outer florets neuter; corollas rudimentary, c. 5 mm. long, filiform; ovary rudimentary, to c. 1.5 mm. long; pappus several-seriate of numerous barbellate setae 18–25 mm. long, not or hardly exceeding the involucre, overtopping the inner floret pappus.
Capitula few to many, solitary and terminal on branches or short shoots, subsessile and axillary, subtended by 1-several leaves.
A prostrate or low suberect perennial herb to c. 60 cm. in diam. or to c. 25 cm. tall, from a woody taproot.
Involucre mostly 17–27 x 10–16 mm., spreading to c. 30 mm. wide, campanulate.
Stems annual, 1-several, branched, leafy, brownish or greyish lanate.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.2
Root system tap-root
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light -
Soil humidity -
Soil texture 5-6
Soil acidity -
Soil nutriment -
Hardiness (USDA) 9-12

Usage

Uses medicinal
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

Dicoma schinzii world distribution map, present in Angola, Botswana, Namibia, South Africa, Zambia, and Zimbabwe

Identifiers

LSID urn:lsid:ipni.org:names:201364-1
WFO ID wfo-0000114684
COL ID 35QJB
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Dicoma schinzii Dicoma arenicola Dicoma lanata