Gerbera ambigua Sch.Bip.

Species

Angiosperms > Asterales > Asteraceae > Gerbera

Characteristics

Roots thong-like, 1-2.5(-4) mm wide. Crown whitish silky-villose. Leaves highly variable in length, form and hair-covering, 5.2-38.5 cm long, 1.3-9.5 cm wide. Petiole terete or flattened and then often broadly grooved above, sometimes more or less winged by the ± de-current lamina, (0-)1-20 cm long (excluding the winged part if present), 1-3(-4) mm wide, up to 10 mm at the very base, whitish or sometimes brownish-reddish silky-villose or tomentose-villose, becoming almost glabrous with age. Blade 3-29.5 cm long, lanceolate-oblanceolate, elliptic, oblong or rarely ovate or subrotund, obtuse or subacute towards the summit; base cuneate, de-current or more rarely truncate or subcordate-cordate; margin entire or sinuate, always with rather remote, sometimes obscure teeth. Upper surface green, varying from almost glabrous through somewhat hairy-pubescent to densely velvety pilose with light hairs; lower surface persistently whitish or more rarely yellow-lemon to brownish-yellow tomentose with short, matted, appressed hairs ± overlaid by longer, intermingled whitish or yellow-reddish-brownish ones, especially along the nerves; margin ciliate or curled hairy in the same colours. Nerves usually prominent, on the lower surface often raised, sometimes almost invisible and then with a rather thin tomentum. Scapes 1-3, (0-)10-68 cm long, 1-5(-7) mm wide, villose or tomentose, hair colours as on the leaves. Involucral bracts 4-18 mm long, 0.5-3 mm wide. Dark capitular hairs rarely found on all vegetative parts. Heads erect, + obconical or with the base ± truncate, 10-25 mm long, 14-40 mm wide. Rays white above, pink, mauve, red or whitish-greenish below (rarely creamy or purplish on both sides) or bright yellow above, yellow and ± coppery below; tube 2.5-6 mm long, lower limb 6-24 mm long, 1-3 mm wide, upper limb 1-3 mm long, style 1.5-1.5 mm long. Disc florets white, yellow, reddish-purple, brown or black, tube 4-8 mm long, limbs 1-3 mm long, style up to 4 mm long; anthers often greenish or black. Pappus violet, violet-purple, whitish or whitish-tawny to somewhat rufous, sometimes more or less two-coloured (violet-purple above, whitish below like in G. viridifolia ssp. viridifolia). Achenes 5-9 mm long, pubescent-pilose, sometimes seemingly tapering, but usually protruding into a more or less distinct beak, 1-4 mm long.
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Herb with woody rootstock and fleshy roots; crown of rootstock densely woolly with long white hairs.. Leaves ± prostrate, petiolate; petiole 2–20 cm long; blade obovate or elliptic, 4.5–9.5(–20) cm long, 1.5–4(–9) cm wide, base subtruncate, rounded or cuneate-attenuate, margins sinuate-denticulate, remotely denticulate or subentire, apex obtuse or rounded, apiculate or obscurely acuminate, pinnately veined, strongly discolorous, silvery grey with short dense persistent tomentum beneath, dark green, finely scattered pilose, glabrous except for long hairs on the midrib or glabrous above, fringed with short sometimes glandular hairs at the margins.. Scapes 1–2 from each rosette, sometimes precocious, green, 20–60 cm tall, pubescent with fine tomentum and longer ± spreading cottony hairs, ± glabrescent in lower part, sometimes also with glandular hairs, not or little inflated below the capitulum, ebracteate; capitula with the rays ± twice as long as the involucre, ± 2.5 cm in diameter; involucre cylindrical with brownish tomentum and longer cottony hairs at the base, 10–15 mm long, becoming broader and slightly longer in fruit; phyllaries ± 35, lanceolate, acute, thinly pubescent to densely brownish-tomentose, sometimes glandular, green or variously tinged purple or brownish, the longest ± 11 mm long.. Outer florets ± 20, female; corolla 13.5–14 mm long, with the outer lip ray-like, yellow, orange or white and then usually tinged pink to purplish beneath, 10–12 mm long, 2.5–2.7 mm wide; outermost inner florets ± 20, female, innermost ± 60, hermaphrodite; corollas ± 8 mm long.. Achenes fusiform, brown, 6.5–7 mm long, 8–10-ribbed, somewhat arcuate, attenuate into a beak somewhat shorter than the body of the achene, densely shortly pilose; pappus of deep tawny brown or (not in East Africa) purplish shortly barbellate bristles, 6–8 mm long.
Perennial herb, acaulescent; crown whitish silky villose. Leaves in basal rosette; blade narrowly ovate, narrowly obovate, elliptic, oblong or ovate to subrotund, margins entire or sinuate, with remote, obscure teeth, ciliate; upper surface green, glabrescent to densely velvety pilose with light hairs, lower surface persistently whitish or lemon-tomentose; petiole up to 200 mm long. Heads radiate, solitary, on long peduncles (scapes). Scapes up to 0.5 m high, villose or tomentose, not swollen below head. Flowers: ray florets biseriate, prominent, white above, pink, mauve or red below, rarely yellow; disc florets white, yellow, reddish or blackish; Oct.-Feb. Fruit with cypsela hairy, with beak 1-4 mm long. Pappus of many barbellate bristles, violet-purple, rarely whitish or whitish tawny.
Perennial herb, 0.15-0.50 m high; from thickened woody rootstock; root crowns densely silky-lanate. Leaves radical, ascending or spreading, petiolate, elliptic or oblong, apex rounded mucronate, margins sinuate-denticulate, undulate or coarsely crenate-denticu-late, upper surface at first pilose-hispid, lower surface thinly crisped, pubescent to gla-brescent. Capitula solitary, erect; involucres broadly obconic; involucral bracts narrowly lanceolate to narrowly elliptic. Ray florets white above, pink below, or yellow and then coppery below. Disc florets bisexual, inner functionally male. Flowering time Aug.-May. Pappus of many scabrid bristles, whitish. Cypselae elliptic, shortly beaked, pubescent.
Outer florets female, of two kinds; a marginal series of ray-florets with the outer lip erect 8–12 x 1–2.5 mm., oblong-elliptic or narrowly oblanceolate, minutely 3-dentate, yellow in the Flora Zambesiaca area, the inner lip of 2 c. 1.2 mm. long linear often curled lobes, pappus copius several seriate of minutely barbellate setae 4–6 mm. long, achenes to c. 6 mm. long narrowly flask-shaped and ± beaked when mature, 6–10-ribbed, sparsely to densely minutely hispid; a submarginal series of fewer bilabiate florets, corollas 6–7 mm. long, the outer lip 1.5–2 mm. long and minutely 3-dentate, the inner lip of 2 erect linear lobes, the pappus and achenes as for the outer florets.
Leaves radical, ascending or spreading, very variable, usually petiolate; petiole up to c. 26 cm. long, but usually shorter; lamina up to c. 20 x 6.5(9) cm., but usually smaller, broadly oblong-elliptic or oblanceolate, rounded or sub-obtuse mucronate at the apex, cuneate to ± rounded below and shortly somewhat asymmetrically decurrent on the petiole, rarely sub-cordate, margins entire to sinuate-denticulate undulate, upper surface ± patent hispid-pilose to glabrescent, lower surface whitish to lemon-yellow appressed lanate-tomentose.
Acaulescent perennial herb. Leaves entire or sinuate, with remote, obscure teeth, lanceolate, oblanceolate, elliptic, oblong or ovate to subrotund, lower surface persistantly whitish or lemon tomentose. Scapes not swollen below head. Rays biseriate, prominent. Flowers with rays white above, pink, mauve or red below, rarely yellow, disc white, yellow, reddish or blackish.
Central florets numerous bilabiate, functionally male, corollas yellow, 7–8 mm. long, the limb narrowly cylindric and tapering below, 2-lipped, the outer lip minutely 3-dentate, the inner lip with 2 linear curved lobes; achenes to c. 6 mm. long, somewhat flattened not swelling, minutely pubescent, pappus as for outer florets.
Scapes one-several, often appearing before the leaves, erect slender, up to c. 45 cm. long, densely brown tomentose often becoming white-lanate towards the apex, glabrescent to the base, indumentum dense of short crisped hairs intermixed with few to numerous long pilose hairs.
Capitula solitary erect; involucres mostly 8–14 x 12–25 mm., broadly obconic; phyllaries from c. 4 mm. long outside to c. 14 mm. long inside, narrowly lanceolate, crisped-pubescent to tomentose or densely lanate-pilose outside, often glabrescent.
A herb without a stem. It grows 35 cm tall. It grows from a thickened rootstock. The leaves are parallel to the ground in a ring near the base and 5-10 cm long by 2-4 cm wide. The flowers are yellow, pink or red. .
Tufted, acaulescent perennial, scapes to 35 cm. Leaves elliptic, petiolate, glabrescent or silky above, grey-felted below. Flower heads radiate, scapose, white to yellow with pink to copper reverse.
An acaulescent perennial herb, from a thickened woody rootstock; rootcrowns densely silky-lanate; roots numerous, brown and thong-like, c. 2 mm. in diam.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.28 - 0.5
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

It is a tropical plant. It grows between 1,100-1,920 m above sea level in savanna regions.
Light -
Soil humidity 3-5
Soil texture 1-8
Soil acidity -
Soil nutriment -
Hardiness (USDA) 9-12

Usage

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

Cultivation

Mode -
Germination duration (days) 15 - 25
Germination temperacture (C°) 21 - 23
Germination luminosity light
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Gerbera ambigua unspecified picture

Distribution

Gerbera ambigua world distribution map, present in Angola, Mozambique, Malawi, eSwatini, Tanzania, United Republic of, South Africa, Zambia, and Zimbabwe

Identifiers

LSID urn:lsid:ipni.org:names:208839-1
WFO ID wfo-0000093657
COL ID 3FW3R
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Lasiopus coriaceus Gerbera discolor Gerbera lynchii Gerbera elegans Gerbera coriacea Gerbera kraussii Gerbera nervosa Gerbera flava Gerbera welwitschii Gerbera discolor Gerbera randii Lasiopus ambiguus Gerbera ambigua var. ambigua Gerbera kraussii var. kraussii Gerbera kraussii var. gueinzii Gerbera welwitschii var. welwitschii Gerbera kraussii var. simuata Gerbera welwitschii var. velutina Gerbera ambigua var. kraussii Gerbera ambigua var. gueinzii Gerbera ambigua var. cardiobasis Gerbera ambigua