Annona stenophylla Engl. & Diels

Species

Angiosperms > Magnoliales > Annonaceae > Annona

Characteristics

Subshrub or shrub 0.3–1 m. tall, mostly rhizomatous; stems mostly annual, simple or branched, densely ferruginous hairy when young, later often glabrous.. Leaf-blades narrowly oblong-elliptic, oblanceolate, ovate or obovate, 1.5–18(–24) cm. long, 0.5–6(–12.5) cm. wide, rounded, acute, acuminate or even slightly emarginate at the apex, cuneate or rounded at the base, not coriaceous, glabrous or sparsely pubescent above, glaucous and mostly densely pubescent beneath; petioles channelled, 0.2–2 cm. long.. Flowers solitary or rarely paired, extra-axillary; pedicels 0.8–2.5 cm. long, tomentose or pubescent; bracteoles small, oblong-ovate.. Sepals ovate, triangular, 3–4 mm. long and wide, tomentose outside, glabrous inside.. Petals green outside, yellow inside, fleshy or woody; outer broadly ovate, 0.8–1.2(–1.5) cm. long and wide, obtuse, concave, shortly densely adpressed pubescent outside; inner linear-oblong or narrowly oblong-elliptic, 10 mm. long, 1.5–2 mm. wide, glabrous.. Stamens linear or clavate, 1.5–2 mm. long, the connective-prolongations obliquely capitate, finely papillate.. Carpels cylindric, 1–1.5 mm. long, glabrescent; stigmas subclavate.. Fruiting pedicels (1–) 1.5–4 cm. long, pubescent; fruit yellowish-brown, ovoid or globose, 1.7–3 cm. in diameter, reticulate, glabrescent.. Seeds chestnut, ovoid to cylindrical, longitudinally flattened, 7–9 mm. long, 3–4 mm. wide; aril fibrillated.
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Leaves petiolate; lamina 4–18 (24) x 1–6 (12.6) cm., narrowly oblong or oblanceolate to ovate or obovate, rounded or slightly emarginate to acute or apiculate at the apex, narrowly cuneate to rounded at the base, membranous, bright or bluish-green and glabrous or sparsely pubescent above, usually paler or glaucous and ± densely tomentose (more rarely glabrous) below, with green to orange or reddish-purple nerves and densely reticulate venation usually ± prominent above as well as below; petiole 2–10 mm. long, densely tomentose to glabrous.
A low bush. It has underground stems or rhizomes. It grows 1 m high. The stems are usually annual and simple. The leaves are 4-18 cm long by 1-6 cm wide. They are narrowly oval. The veins are orange or red. The flowers occur singly. The fruit are 2-3 cm long by 2-3 cm wide. There are several seeds. They are 7-9 mm long. It has large fruit.
Branches cylindric or with opposite pairs of raised lines decurrent from the leaf-bases, red, fawn-tomentose at first, eventually glabrous or persistently tomentose.
Flowers solitary or rarely paired, extra-axillary, spreading or usually ± deflexed; pedicel 10–25 mm. long, pubescent or tomentose; bracteoles 0–1, oblong-ovate.
Fruit on a pedicel (10) 15–40 mm. long, spreading or deflexed; syncarp 1.7–2.7 x 1.7–2.7, ovoid or globose, obtusely squamose, glabrescent, orange or yellow.
Stamens linear to clavate, c. 1.5–2 mm. long, otherwise as in A. senegalensis; filament cuneate or oblong-orbicular.
Shrub or rhizomatous shrublet, up to 1 m. high, with stems simple or ± branched, usually annual.
Seeds numerous, 7–9 mm. long, cylindric or flattened-ovoid, orange-brown; aril pectinate.
Petals cream-yellow to buff or brownish inside, otherwise as in A. senegalensis.
Carpels as in A. senegalensis.
Sepals as in A. senegalensis.
Life form
Growth form shrub
Growth support free-standing
Foliage retention deciduous
Sexuality hermaphrodite
Pollination entomogamy
Spread -
Mature width (meter) -
Mature height (meter) 1.0
Root system rhizome
Rooting depth (meter) -
Root diameter (meter) -
Flower color
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Fruit color
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Nitrogen fixer -
Photosynthetic pathway -

Environment

Usually found growing in Brachystegia woodland, on sandy or frequently burnt ground such as Acacia grassland. Also found on sandy, grassy slopes at the edge of wetlands, at elevations from 500-1,600 metres.
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A tropical plant. It grows in sandy or burnt out ground. In Tanzania it grows between 500-1,600 m above sea level.
Light -
Soil humidity -
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Hardiness (USDA) -

Usage

The pulp of the ripe fruit is eaten raw or cooked. The ripe fruit are soaked in water then squeezed and filtered for juice.
Uses environmental use food gene source medicinal
Edible fruits seeds
Therapeutic use Antiemetics (root), Syphilis (root)
Human toxicity -
Animal toxicity -

Cultivation

Plants can be grown from seeds.
Mode seedlings
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment soaking
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Optimum temperature (C°) -
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Vigor -
Productivity -

Identifiers

LSID urn:lsid:ipni.org:names:72128-1
WFO ID wfo-0000537951
COL ID 5V4CW
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Annona stenophylla Annona friesii Annona friesii var. elongata Annona stenophylla var. nana

Lower taxons

Annona stenophylla subsp. cuneata Annona stenophylla subsp. longipetiolata Annona stenophylla subsp. nana