Othonna auriculifolia Licht. ex Less.

Species

Angiosperms > Asterales > Asteraceae > Othonna

Characteristics

Perennial herb, up to 0.75 m high; glabrous, glaucous, ± fleshy, ± stemless, crown woolly, rootstock tuberous. Leaves in a basal rosette, petiolate; blade obovate, apex obtuse to rounded, margins variably incised, lobed, denticulate or sinuate, rarely entire, axils woolly. Heads radiate, campanulate, up to 30 mm in diameter, solitary; peduncles up to 150 mm long. Involucral bracts 12-14, uniseriate, narrowly ovate to linear, connate to ± halfway, edges membranous, ecalyculate. Flowers: ray florets 12-14, female or bisexual, yellow above, often red-brown below, dries ± blue; disc florets functionally male, yellow; Jul., Sep. Fruit with cypsela ellipsoid, silky, 8 mm long. Pappus of scabrid bristles, 20 mm long.
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Stemless or short-stemmed, tuberous geophyte, up to 150 mm tall, with a woolly crown. Leaves sometimes emergent at flowering, rosulate or basally congested, ± petiolate, oblanceolate to obovate-suborbiculate, mostly 30-60 x 10-40 mm, serrate or variously incised to pinnatifid, mostly with serrated lobes, leathery, rarely with bristles on upper surface, margins slightly revolute, woolly in axils. Flowerheads solitary on stiff, naked peduncles, radiate; ray florets yellow (rarely white) and usually with red or dark reverse; disc florets yellow or black; involucre shallowly cup-shaped, 10-15 mm diam., bracts 10-12, 8-10 x 1.5-2.5 mm. Cypselas 4-5 mm, pubescent; pappus 15-25 mm long.
Glabrous, glaucous, ± fleshy, perennial herb; ± stemless, crown woolly, rootstock tuberous. Leaves radical, oblanceolate, subpetiolate, entire or variably incised, denticulate or sinuate, up to 100 mm long, axils woolly. Peduncles (scapes) to 150 mm long. Capitula campanulate, up to 30 mm in diam.; rays 12-14, yellow above, often red-brown below, dries ± blue, disc yellow. Flowering time Apr.-Sept. Pappus of buff-coloured hairs, 20 mm long. Cypselae silky, 8 mm long.
A herb with a short stem and it keeps growing from year to year. It has a tuberous root. It grows 75 cm tall. The leaves are in a ring near the base. They are broadly sword shaped and 3-5 cm long y 1-4 cm wide. There are teeth or divisions along the edge. The flower heads occur singly on stiff stalks. They are yellow and red underneath.
Stemless, tuberous perennial to 15 cm. Leaves radical, petiolate, oblanceolate, toothed to deeply lobed or pinnatifid, woolly in axils. Flower heads radiate, solitary on stiff, naked peduncles, yellow often with red reverse; pappus of ray florets much elongated in fruit.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.75
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

It is a subtropical plant.
Light -
Soil humidity -
Soil texture 1-3
Soil acidity -
Soil nutriment -
Hardiness (USDA) 9-11

Usage

Uses -
Edible roots
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 -

Images

Othonna auriculifolia unspecified picture

Distribution

Othonna auriculifolia world distribution map, present in South Africa

Identifiers

LSID urn:lsid:ipni.org:names:235960-1
WFO ID wfo-0000133758
COL ID 4B2JY
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Othonna cyanoglossa Othonna auriculifolia Othonna picridioides Othonna lactucifolia