Emilia coccinea G.Don

Scarlet tasselflower (en)

Species

Angiosperms > Asterales > Asteraceae > Emilia

Characteristics

Herbs, annual. Stems erect, 40-70(-100) cm tall, glabrous or hispidulous. Basal and lower leaves shortly petiolate; blade oblong, obovate, or subspatulate, 5-7 × 2-2.5 cm, both surfaces puberulent, veins convex abaxially and conspicuously concave adaxially, base gradually attenuate, winged and semiamplexicaul, margin entire or repand-denticulate, apex obtuse. Median stem leaves sessile, oblong or ovate-oblong, large, basally hastate and amplexicaul. Upper leaves smaller, lanceolate or oblong-lanceolate, basally auriculate and amplexicaul, apically acute. Capitula several in terminal corymb, 10-15 mm; peduncles 10-30 mm, not bracteate. Involucres urceolate or top-shaped, 10-12 × 9-12 mm, without bracts at base; phyllaries distinctly shorter than florets, 10-13, linear-lanceolate, glabrous, margin narrowly scarious, apically acuminate. Florets numerous, ca. 50; corolla scarlet, rarely yellow, tube slender; lobes 5, lanceolate, 1.6-2.2 mm. Achenes cylindric, ca. 3 mm, puberulent, 5-ribbed. Pappus white, ca. 4 mm. Fl. Jul-Nov. 2n = 10, 20.
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Erect, seasonal herb, 1-5 dm tall, glabrous to lightly pilose; taproot present. Leaves alternate, the middle and lower cauline leaves ovate to oblanceolate in outline, but variously toothed or lobed to subentire, the teeth callose-tipped, the uppermost leaves reduced to bracts. Inflorescence of 1 to several loose, few-headed, corymbiform cymes, arising terminally or laterally in the axils of the upper leaves. Heads discoid, urceolate to turbinate, robust, ca. 1'/2 times longer than wide, the florets prominently exserted to about ? their length beyond the involucre; involucral bracts ca. 13, linear, 6-9 mm long; receptacle flat to convex; florets with corollas scarlet to red-orange or orange. Achene brown to reddish-tan, narrowly rapiform, 3-4 mm long, minutely pubescent along the 10 ribs; pappus of abundant white capillary hairs. Chromosome number n = 5.
A herb. It grows about 30-100 cm high. It has weak stems. They are hairy in the lower parts. The leaves are often purple underneath. The lower leaves are spoon shaped and 12 cm long by 5 cm wide. Higher leaves are 20 cm long by cm wide and do not have a leaf stalk. The flowers can be yellow, orange or red. They are showy and in compact heads. These are on long stalks at the top of the plant. The fruit is dry and 2-5 mm long.
A straggling glaucous sparingly pubescent herb with weak stems up to about 3 ft. long
Florets deep yellow in long-stalked heads about 1/2 in. long
Leaves often purple beneath
Life form annual
Growth form herb
Growth support free-standing
Foliage retention evergreen
Sexuality hermaphrodite
Pollination entomogamy
Spread -
Mature width (meter) 0.3
Mature height (meter) 0.6
Root system tap-root
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway c3

Environment

It is a tropical plant. It is best in humus-rich, moist, well-drained soils. It needs a protected position in part shade. It is damaged by frost or drought. In Tanzania it grows from sea level to 2,000 m above sea level.
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A conspicuous weed of roadsides, waste places, abundant in old cultivated land, often common in dry country at low elevations, found from sea level to 2,000 metres.
A weed along roadsides and in clearings in forest country.
Not known in a truly wild situation
Light 7-9
Soil humidity 1-5
Soil texture 3-6
Soil acidity 3-7
Soil nutriment -
Hardiness (USDA) 9-11

Usage

The leaves are eaten raw in salads. They are also chopped and cooked. The taste is slightly acid and with a touch of bitterness. They are often mixed with other vegetables.
Uses animal food environmental use food gene source medicinal social use
Edible leaves
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Plants can be grown from seeds.
Mode seedlings
Germination duration (days) 8 - 15
Germination temperacture (C°) 21
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -7
Optimum temperature (C°) 20 - 30
Size -
Vigor -
Productivity -

Images

Emilia coccinea unspecified picture

Distribution

Emilia coccinea world distribution map, present in Burundi, Bangladesh, Central African Republic, China, Ethiopia, India, Myanmar, Panama, Rwanda, South Sudan, United States of America, and Zambia

Identifiers

LSID urn:lsid:ipni.org:names:203038-1
WFO ID wfo-0000023147
COL ID 886NV
BDTFX ID -
INPN ID 629618
Wikipedia (EN)
Wikipedia (FR) Link

Synonyms

Emilia coccinea Cacalia gracilis Cacalia coccinea Emilia flammea Emilia sagittata Emilia sagittata var. lutea Emilia sonchifolia var. sagittata Emilia prenanthoides