Cotyledon orbiculata L.

Pig's ear (en), Oreille-de-cochon (fr), Cotylédon orbiculaire (fr), Nombril de Vénus (fr)

Species

Angiosperms > Saxifragales > Crassulaceae > Cotyledon

Characteristics

Small shrubs rarely up to 1.5 m high, more or less branched. Leaves opposite or whorled, obovate to oblanceolate to narrowly linear, (30-)50-140(-160) x 10-50(-90) mm, cuneate, rounded or cuspidate or rarely acute, dorsiventrally flattened and slightly convex on both surfaces to terete, glabrous to hairy, green to grey and often with a red or pale margin. Inflorescence a thyrse with 3-5 dichasia usually with many flowers; peduncle 0.2-0.5(-1) m long, glabrous to hairy. Calyx: lobes broadly to narrowly triangular, 2-5 mm long, acute, glabrous, rarely hairy. Corolla deep red to orange, rarely yellow; tube cylindrical or almost so, 8-30 mm long, often bulging in the middle; glabrous, rarely hairy outside and glabrous inside except for a tuft of hairs where filaments are fused to tube; lobes lanceolate, rarely ovate, recurved or recoiled. Anthers 1.5-2.5 mm long. Squamae transversely oblong to almost square, 0.4-0.9 x 1-1.5 mm, entire or emarginate, fleshy, yellow.
More
Succulent subshrub with short, thick stem, often branched and forming clumps. Lvs opposite, sometimes subrosulate, ± vertical, sessile, to 11 × 9 cm, 5-12-(15) mm thick near middle, broadly obovate, very rarely narrow-oblong, ± concave above and convex beneath, entire, green with dense covering of white bloom; margin usually reddish purple; apex rounded and often ± mucronate. Flowering stems to c. 50 cm high, purplish and covered with white bloom. Cymes of few to many pendent fls; bracts 0.5-2 cm long. Sepals 3-5 mm long, triangular, green or ± red, covered with white bloom. Corolla 3-4-(4.7) cm long, orange or orange-red; tube c. ⅔ length of corolla, broadly cylindric and shallowly ribbed, with some bloom outside; lobes becoming reflexed, acute. Stamens 2-2.5 cm long, yellow. Styles 1.5-2 cm long, green. Scales 2-2.5 mm long, oblong, triangular-ovate to almost square. Follicles 2-3 cm long. Seeds 0.5-0.8 mm long, oblong, longitudinally ribbed.
Variable species. Shrub, ± branched, erect, ± 1.5 m high. Leaves obovate to oblanceolate to narrowly linear, 50-140 x 10-50 mm, cuneate, rounded or cuspidate, dorsiventrally flattened, slightly convex on both sides to terete, glabrous to hairy, green or grey, red or pale margins. Inflorescence a tall, erect thyrse with 3-5 dichasia, each with many flowers; peduncle 0.2-0.5 m long, glabrous to hairy. Calyx: lobes narrowly triangular, 2-5 mm long, acute, glabrous, rarely hairy. Corolla deep red to orange; tube cylindrical, 8-30 mm long, bulging in middle, glabrous; lobes lanceolate, recurved or recoiled shorter than tube. Flowering time Oct.-Jan.
Succulent shrublet, up to 1 m tall. Leaves linear to broadly obovate, 40-100 x 10-50 mm, terete to dorsiventrally flattened, smooth and not sticky. Flowers in a stout, smooth inflorescence, nodding; corolla orange to red, glaucous, smooth and not sticky, tube 8-30 mm long, lobes 12-20 mm long.
Succulent shrub to 1 m. Leaves obovate to narrowly ovoid, sometimes velvety, with a grey bloom. Flowers several in a stout, pedunculate cyme, nodding, reddish, filaments hairy below.
A succulent herb.
Life form perennial
Growth form shrub
Growth support free-standing
Foliage retention evergreen
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) 0.1 - 0.5
Mature height (meter) 0.5 - 1.0
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway cam

Environment

It is a subtropical plant. In Hobart Botanical gardens.
Light 6-9
Soil humidity 1-5
Soil texture 5-8
Soil acidity 2-8
Soil nutriment -
Hardiness (USDA) 10-11

Usage

Uses animal food environmental use food material medicinal poison social use
Edible -
Therapeutic use Boil (unspecified), Charm (unspecified), Medicine (unspecified), Poison (unspecified), Corn (unspecified), Epilepsy (unspecified), Fertility (unspecified)
Human toxicity -
Animal toxicity -

Cultivation

Can be grown by cuttings or seedlings.
Mode cuttings seedlings
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) 1
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Habit

Cotyledon orbiculata habit picture by Francois Mansour (cc-by-sa)

Leaf

Cotyledon orbiculata leaf picture by Nadine Sauvan (cc-by-sa)
Cotyledon orbiculata leaf picture by Monteiro Henrique (cc-by-sa)
Cotyledon orbiculata leaf picture by Maarten Vanhove (cc-by-sa)

Flower

Cotyledon orbiculata flower picture by Maarten Vanhove (cc-by-sa)
Cotyledon orbiculata flower picture by francois tissot (cc-by-sa)
Cotyledon orbiculata flower picture by Kolle Tranne (cc-by-sa)

Distribution

Cotyledon orbiculata world distribution map, present in Angola, Australia, Bolivia (Plurinational State of), Spain, France, Namibia, New Zealand, Taiwan, Province of China, United States of America, and South Africa

Identifiers

LSID urn:lsid:ipni.org:names:272761-1
WFO ID wfo-0000623888
COL ID YZ4K
BDTFX ID 19259
INPN ID 92734
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Sedum decussatum Cotyledon papillaris Cotyledon tricuspidata Sedum orbiculatum Cotyledon canaliculata Cotyledon elata Cotyledon engleri Cotyledon mucronata Cotyledon ovata Cotyledon ramosa Cotyledon ungulata Cotyledon ausana Cotyledon decussata Cotyledon ambigua Cotyledon decussata var. henrichseniana Cotyledon orbiculata var. ausana Cotyledon orbiculata var. higginsiae Cotyledon orbiculata f. dinteri Cotyledon ramosissima Cotyledon orbiculata var. orbiculata Cotyledon orbiculata var. oophylla Cotyledon orbiculata

Lower taxons

Cotyledon orbiculata var. flanaganii Cotyledon orbiculata var. oblonga Cotyledon orbiculata var. spuria Cotyledon orbiculata var. dactylopsis