Hibiscus martianus Zucc.

Heartleaf rosemallow (en)

Species

Angiosperms > Malvales > Malvaceae > Hibiscus

Characteristics

Subshrubs, to 1.5 m, herbage stellate-tomentose throughout, lines of fine curved hairs absent or obscured. Stems: older twigs gray, glabrescent. Leaves: stipules linear-lanceolate, (2–)3–7(–10) mm; petiole subequal to blade, adaxial fine curved hairs absent or obscured; blade markedly discolorous, broadly ovate, unlobed or shallowly 3-angulate-lobate, 2–8 × 2–8.5 cm, base cordate, margins irregularly dentate or dentate-serrate, apex broadly acute to rounded, surfaces densely tomentose abaxially, less so adaxially, inconspicuous nectary abaxially on midvein near base. Inflorescences solitary flowers in axils of distal leaves. Pedicels jointed below apices, 4–10 cm, exceeding subtending petioles, elongating in fruit; involucellar bractlets (7 or)8–10, narrowly rhombic-elliptic, 1.2–2(–2.4) cm, enlarging in fruit, margins not or inconspicuously ciliate. Flowers horizontal or ascending; calyx rotate to campanulate, lobed nearly to base, 1.4–2.4(–2.7) cm, larger in fruit, lobes narrowly triangular-ovate, apices acute to short-acuminate, nectaries absent; corolla rotate to campanulate, petals bright red, asymmetrically obovate, 1.5–3 × 0.9–2.1 cm, margins ± entire, sometimes undulate, finely hairy abaxially where exposed in bud; staminal column somewhat declinate, bright red, 0.9–1.4 cm, bearing filaments throughout, free portion of filaments secund, 1–5 mm; pollen yellow-orange; styles red, 2–7 mm; stigmas red. Capsules yellowish brown, ovoid, 1.2–2 cm, apex apiculate, glabrous or with minute hairs near apex and on sutures. Seeds dark brown, angulately reniform-ovoid, 3–4 mm, stellate-hairy throughout. 2n = 22 (Mexico: Nuevo León).
Life form perennial
Growth form
Growth support -
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 1.5
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway c3

Environment

Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 8-11

Usage

Uses essential oil fibre food insect repellent ornamental rubber
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

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

Images

Hibiscus martianus unspecified picture

Distribution

Hibiscus martianus world distribution map, present in Mexico and United States of America

Identifiers

LSID urn:lsid:ipni.org:names:560501-1
WFO ID wfo-0001246576
COL ID 3LJYH
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Hibiscus cardiophyllus Hibiscus martianus