Oldenburgia grandis Baill.

Species

Angiosperms > Asterales > Asteraceae > Oldenburgia

Characteristics

Shrub or small tree 1-5 m tall with gnarled, rough, dark stems and branches. Leaves obovate or oblanceolate with obtuse or subacute apices, range up to 200-100 mm. Peduncles to 500 mm, densely tomentose, bearing several leaf-like bracts and 3-5 cymosely arranged capitula. Involucre cyathiform range up to 80 x 80 mm. Involucral bracts numerous, about 10-seriate, narrowly lanceolate and closely imbricate, but with reflexed acuminate tips, 15-40 mm long, about 3 mm wide at base, dark maroon with white-tomentose bases. Ray florets about 60, sub-uniseriate, white, tube c. 15 mm long, outer lip 3-toothed, 16-22 mm long, 2 mm wide, inner lobes 11-15 mm long, 0.5-1 mm wide; anthers about 14 mm long, including 4 mm long tails; style up to 35 mm long; achenes fusiform, glabrous, 10-ribbed, 12-15 mm long,1.5-3 mm wide; pappus of about 18 barbellate bristles of uniform length and thickness, about 25 mm long. Disc florets about 800, white, tube 14-16 mm long, lobes 14-16 mm long; anthers 10-17 mm long, including 3-5-mm long tails, style 30-37 mm long; achenes as in ray florets except the pappus with 20-26 bristles about 30 mm long.
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Small tree, 1-5 m high with gnarled stems and branches. Leaves obovate or oblanceolate, up to 200 mm long, dark green and shiny above, densely tomentose below. Capitula large, homogamous, radiate, up to 80 mm wide, 3-5 on terminal peduncles; peduncles up to 500 mm long. Ray florets ± 60, white; outer lip 3-toothed, 16-22 mm long; inner lobes 11-15 mm long; Disc florets ± 800, white, tube 14-16 mm long, lobes 14-16 mm long. Flowering time Oct.-Jan. Pappus of ± 18-26 bristles, 25-30 mm long. Cypselae 12-15 mm long.
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Growth form
Growth support free-standing
Foliage retention evergreen
Sexuality hermaphrodite
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Mature height (meter) 1.0 - 5.0
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Hardiness (USDA) 9-9

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Cultivation

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Images

Oldenburgia grandis unspecified picture
Oldenburgia grandis unspecified picture

Distribution

Oldenburgia grandis world distribution map, present in South Africa

Conservation status

Oldenburgia grandis threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:234748-1
WFO ID wfo-0000011999
COL ID 492VV
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Arnica grandis Oldenburgia grandis Oldenburgia arbuscula