Hermannia comosa Burch. ex Dc.

Species

Angiosperms > Malvales > Malvaceae > Hermannia

Characteristics

Subherbaceous perennials, one to several stems arising from tap-root; stems branched at base; branches suberect to spreading-ascending, laxly subbranched, pubescent to tomentose with fine short appressed stellate hairs often intermixed with stalked, tufted hairs. Stipules narrowly deltoid, linear-lanceolate, lanceolate or ovate-lanceolate, 3-6 mm long, 0-2.5 mm broad near the base, dorsally stellate-pubescent. Leaves petiolate; blade oblong to oblong-obovate, rarely oblong-elliptic, broadly cuneate to rounded at base, 1.5-5 cm long, 0.6-3.5 cm broad near base, pubescent with fine stellate hairs on both surfaces but more often densely so to tomentose underneath, sometimes partly glabrescent above, margins coarsely crenate to lobate-crenate or rarely entire; petiole densely stellate-pubescent to stellate-tomentose, often with tufted hairs intermixed. Inflorescence of usually 2-flowered cymes, 2-3 developing at the apices of branches and in axils of upper leaves; peduncles 5-20 mm long; pedicels 2-10 mm long; bracts subulate to linear-lanceolate, usually 3 at a node, sometimes 2 joined together, 2-5 mm long. Calyx inflated, white or ivory-coloured and some flowers suffused with shades of green, yellow or rose, about 9 mm long, depressed globose, 5-lobed almost to middle, with lobes incurved, pubescent on outside with short stellate hairs intermixed with longer, stalked, tufted hairs (the stalks sometimes up to 1.5 mm long). Petals twisted lemon-yellow, about 10 mm long, upper third oblong-orbicular, 2.5-4 mm broad narrowing into a claw 2 mm broad, lower two-thirds with infolded margins, sparsely to conspicuously dorsally pubescent with stellate and tufted hairs, especially along sides, glabrescent. Stamens 5 with hyaline, obovate-oblong filaments, 4 mm long, joined at base and sometimes adhering along margins to almost middle, pubescent on shoulders; anthers acute, about 4 mm long, ciliate. Ovary about 4 mm long, shallowly 5-lobed, stellate-tomentose, hairs fine and appressed or some, especially at apex, slightly longer and erect; styles cohering, about 6 mm long. Capsule enclosed in persistent calyx and petals, deeply 5-angled, angles produced for 2 mm beyond the style bases, rounded; seeds reniform, corrugated.
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Erect suffrutex, with woody taproot, several stemmed, branching from base, 0.1-1.1 m high; pubescent to tomentose with fine, short, appressed stellate hairs, intermixed with stipitate, stellate hairs. Leaves basally arranged, long petiolate, ovate to oblong-ovate; cauline leaves smaller; tomentose as above. Stipules ± linear-lanceolate. Inflorescences terminal or axillary, 2-flowered cymes; peduncles 5-20 mm long; pedicels tomentose. Flowers ± 12 mm long, yellow-orange. Calyx inflated, globose, narrowed at mouth, ivory-coloured, 5-lobed almost to middle; pubescence of short, stellate hairs intermixed with stipitate, tufted hairs. Petals upper 1/3 oblong-orbicular, narrowed into claw. Flowering time all year. Fruit a capsule enclosed in persistent calyx.
Perennial herb, up to 0.2 m high. Leaves with long petioles; blade oblong to oblong-obovate, pubescent with fine stellate hairs on both surfaces, but more often densely tomentose on lower surface. Flowers: usually in 2-flowered cymes, 2 or 3 developing at apices of branches and in axils of upper leaves; bracts with margins entire; calyx inflated, narrowed at mouth; petals 10 mm long, lemon-yellow; Oct.-Jan.
Perennial herb, up to 200 mm tall. Leaves long-petioled, blade oblong to oblong-obovate, 15-50 x 6-35 mm, pubescent with fine stellate hairs on both surfaces, but more often densely so to tomentose underneath. Inflorescence: usually 2-flowered cymes, 2 or 3 developing at apices of branches and in axils of upper leaves. Calyx inflated, narrowed at mouth. Petals 10 mm long. Flowers lemon-yellow.
Leaf-lamina c. 3 × 2 cm., ovate-oblong, apex acute, base broadly cuneate, margin irregularly serrate, crenate or undulate, tomentose on both sides, ± discolorous, appearing ± plicate due to nerves being ± deeply immersed above and raised below; petiole up to c. 3 cm. long, tomentose; stipules up to 5 mm. long, subulate, tomentose.
Like H. johanssenii but leaves, especially the lower, long-petioled and flowers not clearly turned to one side in leaf axils, but 2 or 3 at tips of branches and in axils of upper leaves, and calyx whitish cream, often suffused with green, yellow or pink and with stalked tufted hairs.
Flowers in pairs in the axils of the upper leaves; peduncles c. 1–1·5 cm. long, tomentose; pedicels up to 5 mm. long, tomentose; bracts and bracteoles 2–5 mm. long, subulate, tomentose.
Calyx up to c. 1 cm. in diam., inflated, globose-campanulate, toothed about 1/5–1/3 of the way down, tomentose, often with stalked stellate hairs or appendages on the angles.
Petals yellow, slightly exceeding the calyx, spathulate with the margins infolded in the lower half, stellate-pubescent on both sides.
Ovary subglobose, shortly stipitate, apex truncate with 5 blunt processes, tomentose; styles 5 mm. long, puberulous near the base.
Stamens with narrowly obovate filaments c. 4 mm. long and pubescent on the shoulders; anthers c. 4 mm. long, pubescent.
Perennial herb c. 20 cm. tall; branches densely stellate-tomentose.
Ripe capsules not seen.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.2
Root system tap-root
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light -
Soil humidity 1-3
Soil texture 5-6
Soil acidity -
Soil nutriment -
Hardiness (USDA) 9-12

Usage

Uses -
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Mode -
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Hermannia comosa unspecified picture

Distribution

Hermannia comosa world distribution map, present in Botswana, Namibia, and South Africa

Identifiers

LSID urn:lsid:ipni.org:names:823668-1
WFO ID wfo-0001140878
COL ID 3KZDR
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Hermannia comosa Hermannia ausana Hermannia leucophylla