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Thunbergia alata

(Black-Eyed Susan Vine)

Common Names

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Click on the language to view common names.

Common Names in English:

Black Eye Susan, Black-Eyed Susan Vine, Black-Eyed-Susan-Vine, Blackeyed Susan Vine

Common Names in French:

Suzanne Aux Yeux Noirs

Common Names in German:

Schwarzäugige Susanne

Common Names in Spanish:

Ojitos Negros

Description

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Family Acanthaceae

The Acanthaceae are mostly herbs or shrubs comprising about 250 genera and 2,500 species, including twining forms. The leaves are simple , opposite and decussate; stipules are lacking. The flowers are bisexual , zygomorphic, and usually are associated with conspicuous , often brightly colored bracts. The calyx is usually deeply 4-5 lobed or sometimes is highly reduced with more numerous minute teeth. The corolla is sympetalous , usually 5-merous, mostly zygomorphic, and commonly 2 lipped. The androecium usually consists of 4 didynamous stamens or only 2 stamens adnate to the corolla tube or epigynous zone, alternate with the lobes . The gynoecium consists of a single compound pistil of 2 carpels, a single style , and a superior ovary with 2 locules, each with usually 2-10 axile ovules in one or two collateral vertical tiers . An annular nectary disk is usually found around the base of the ovary. The fruit is commonly an elastically dehiscent loculicidal capsule. The seed stalk or funiculus of each seed is modified into a hook shaped jaculator or retinaculum that functions in flinging out the seeds during dehiscence. -- Gerald Carr.

Physical Description

Habit: Vine , Forb/herb

Flowers: Yellow flowers with dark centers. • Bloom Period: April, May, June, July, August. • Flower Color: orange, red, red-orange, yellow

Size/Age/Growth

Size: 6-8' tall.

Habitat

Typically found at an altitude of 0 to 3,037 meters (0 to 9,964 feet).Mean = 278.550 meters (913.878 feet), Standard Deviation = 521.560 based on 1,006 observations. Altitude information for each observation from British Oceanographic Data Centre.

Biology

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Reproduction

Duration: Perennial

Growth

Culture: Space 24-36" apart.

Soil: Minimum pH: 6.1 • Maximum pH: 7.8

Sunlight: Sun Exposure: Sun to Partial Shade.

Temperature: Cold Hardiness: 9a, 9b, 10a, 10b. (map)

Taxonomy

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Notes

Name Status: Accepted Name . Latest taxonomic scrutiny: 15-Mar-2000.

Place of publication : Bot. Mag. 52: t. 2591. 1825

Name verified on 09-Jun-2006 by ARS Systematic Botanists. Last updated: 09-Jun-2006.

Similar Species

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Members of the genus Thunbergia

There are approximately 220 species in this genus. Here are just 100 of them:

T. 'Alamain Glory' · T. 'Beauty Spots' · T. 'Daniella' · T. 'Debora' · T. 'Diana' · T. 'Lemon Star' · T. 'Lisa' · T. 'Molly' · T. 'Samantha' · T. 'Sun Lady' (Black-Eyed Susan Vine) · T. abyssinica · T. acutibracteata · T. adenocalyx · T. adenophora · T. adjumaensis · T. affinis · T. alata (Black Eye Susan) · T. alata 'African Sunset' (Black-Eyed Susan Vine) · T. alata 'Alba Oculata' (Black-Eyed Susan Vine) · T. alata 'Alba' (Black-Eyed Susan Vine) · T. alata 'Apricot Smoothie' (Black Eyed Susan Vine) · T. alata 'Blushing Susie' (Blushing Susie Black-Eyed Susan Vine) · T. alata 'Lemon Star' (Black-Eyed Susan Vine) · T. alata 'Orange Beauty' (Black-Eyed Susan Vine) · T. alata 'Orange Wonder' (Black-Eyed Susan Vine) · T. alata 'Raspberry Smoothie' (Black-Eyed Susan Vine) · T. alata 'Salmon Shades' (Black-Eyed Susan Vine) · T. alata 'Smoothie' (Black-Eyed Susan Vine) · T. alata 'Spanish Eyes' (Black-Eyed Susan Vine) · T. alata 'Superstar Orange' (Black-Eyed Susan Vine) · T. alba · T. albiflora · T. amanensis · T. amoena · T. anatina · T. angolensis · T. angulata · T. angustata · T. angustifolia · T. annua · T. argentea · T. armipotens · T. arnhemica · T. aspera · T. atacorensis · T. atriplicifolia · T. attenuata · T. aurantiaca · T. aurea · T. aureosetosa · T. bachmannii · T. backerii · T. bancana · T. battescombei · T. battiscombei (Bengal Clock Vine) · T. battiscombeii · T. bauri · T. beniensis · T. bicolor · T. bikimaensis · T. bodinieri · T. bogoroensis · T. borbonica · T. brachypoda · T. brewerioides · T. byalina · T. capensis · T. castellaneana · T. cerinthoides · T. chinensis · T. chiovendae · T. chrysochlamys · T. chrysops · T. ciliata · T. clarkei · T. coccinea (Thunbergia) · T. coccinea 'Lutea' · T. coccinia · T. coerulea · T. collina · T. colpifera · T. combretoides · T. convolvulifolia · T. cordata · T. cordibracteolata · T. cordifolia · T. crispa · T. cuanzensis · T. cyanea · T. cycnium · T. cynanchifolia · T. deflexiflora · T. delamerei · T. doddsii · T. dregeana (Thunbergia) · T. eberhardti · T. elegans · T. elliotii · T. elskensi · T. erecta (Bush Clockvine)

Bibliography

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More Info

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Notes

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Contributors

Data Sources

Accessed through GBIF Data Portal November 22, 2007:

Identifiers

Footnotes

Last Revised: 2008-11-03