Encephalartos humilis I.Verd.

Dwarf cycad (en)

Species

Gymnosperms > Cycadales > Zamiaceae > Encephalartos

Characteristics

Plant dwarf, branching freely from the parent rootstock forming small clumps; stems subterranean or very occasionally up to about 30 cm above ground with a total length of 35 cm rarely up to 50 cm, 13-18 cm diam. with short lanate bracts. Leaves 30-50 cm long including petiole 5-15 cm long, loosely greyish tomentose with villous leaflets, glabrescent except for base of petiole and pulvinus; rhachis usually somewhat recurved and sometimes slightly twisted towards apex; leaflets glaucous when young, in V disposition above the middle of the rhachis and sometimes slightly overlapping, set parallel or only slightly angled to the rhachis, pungent, entire; median leaflets 9-13 cm long, 4-6 mm broad, finely about 9-nerved on the under surface. Cones single on a stem, densely greyish tomentose on exposed face. Male cones 15-20 cm long, 4-5 cm broad, narrowed slightly to base and apex with peduncle up to about 12 cm long; median scales about 1.5 cm long and 2 cm broad, 1.5-1.75 cm thick vertically, with lateral angles acute; bulla face very little projected, with terminal facet occupying almost whole area, hidden by tomentum. Female cones barrel-shaped, about 27 cm long, 9 cm diam., on short peduncle about 3 cm long; median scale 3.5-4 cm long, 4-5 cm broad, 2-2.5 cm thick vertically; bulla with lateral ridges extending into the lateral incurved lobes about 5-10 mm long, rugose on basal glabrous part; bulla face nearly flat, upper and lower facets rounded, terminal facet about 1.5 cm broad and 1 cm wide vertically, sometimes extending nearly to lower margin. Seeds orange-yellow, angled by compression, 2.5-3 cm long, 2-2.5 cm broad.
More
Dwarf plant, branching freely from parent rootstock. Stems up to 300 mm tall. Cones with a dense woolly covering, single. Leaves up to 500 mm long, bluish green, untidy looking. Median leaflets 90-130 x 4-6 mm, finely ± 9-nerved on undersurface.
Life form perennial
Growth form shrub
Growth support free-standing
Foliage retention evergreen
Sexuality dioecy
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.3
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer nostocaceae
Photosynthetic pathway -

Environment

Light -
Soil humidity -
Soil texture 7-8
Soil acidity -
Soil nutriment -
Hardiness (USDA) -

Usage

Uses environmental use
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

Encephalartos humilis unspecified picture

Distribution

Encephalartos humilis world distribution map, present in South Africa

Conservation status

Encephalartos humilis threat status: Vulnerable

Identifiers

LSID urn:lsid:ipni.org:names:297094-1
WFO ID wfo-0000667394
COL ID 39ND2
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Encephalartos humilis