Helinus mystacinus E.Mey. ex Steud.

Species

Angiosperms > Rosales > Rhamnaceae > Helinus

Characteristics

Woody climbers to 10 m. or more.. Herbage usually appressed pilose to nearly tomentulose but occasionally nearly glabrous, the youngest shoots and nerves of the young blades being the most pubescent parts.. Leaf-blades ovate to broadly ovate, (l–)3–6 cm. long, (7–)17–50 mm. wide, at base rounded or usually shallowly cordate, at apex rounded or rarely acutish, mucronate, thin, at base 3-nerved, above the base on each side of midrib with 3–6 secondary nerves; petioles filiform, (3–)7–20 mm. long.. Stipules linear, (2–)3–6 mm. long, caducous.. Peduncles filiform, (l–)2–4 cm. long, sparsely pilose to tomentulose.. Pedicels filiform, (3–)5–10 mm. long in flower, 6–10 (–13) mm. long in fruit.. Cup pilose to tomentulose.. Sepals 1.5–2 mm. long, externally pilose to tomentulose.. Petals 1.4–1.8 mm. long, whitish.. Disk whitish.. Fruit pendulous, globose to slightly obovoid-globose, 5–7 mm. long, pilose and with crowded acute glandular tubercles rb 0.3 mm. long, ripening through shades of red, said to be blue-black when ripe.. Fig. 5.
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Leaves petiolate; lamina 2–5 × 1·3–5 cm., ovate, broadly ovate or circular, apex rounded, mucronate, margin entire, base rounded to cordate, penninerved with 5–6 pairs of secondary nerves, upper surface glabrous, lower surface puberulous to tomentose especially on the nerves; petiole up to 1·8 cm. long; stipules subulate, up to 6 mm. long.
Ovary immersed in the disk; style 2 mm. long and with 3 diverging branches or less than 1 mm. long and obscurely 3-lobed.
Flowers in axillary pedunculate umbels; peduncle up to c. 2 cm. long, pubescent; pedicels 7–10 mm. long, pubescent.
Climbing shrub; branchlets pubescent, provided with pubescent coiled tendrils.
Fruit obovoid, pubescent, densely reticulate-tuberculate.
Seeds 3, 3-angled or ± plano-convex; testa shining black.
Petals 1·5–2 mm. long, obovate, cucullate, unguiculate.
Sepals 2 mm. long, ovate-deltate, pubescent.
Disk 2 mm. in diam., annular, 5-lobed.
Stamens 1·5–2 mm. long.
Life form -
Growth form shrub
Growth support climber
Foliage retention evergreen
Sexuality hermaphrodite
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Photosynthetic pathway c3

Environment

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Hardiness (USDA) 9-12

Usage

Uses medicinal
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Cultivation

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Distribution

Helinus mystacinus world distribution map, present in Eritrea, Ethiopia, Kenya, Mozambique, Malawi, Rwanda, Somalia, Tanzania, United Republic of, Uganda, Zambia, and Zimbabwe

Identifiers

LSID urn:lsid:ipni.org:names:717551-1
WFO ID wfo-0000718183
COL ID 6LJNG
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Mystacinus mystacinus Helinus mystacinus Colubrina mystacina Rhamnus mystacina