Aloe excelsa A.Berger

Zimbabwe aloe (en)

Species

Angiosperms > Asparagales > Asphodelaceae > Aloe

Characteristics

Trees; stems simple, 2-4 m tall. Leaves ±30, 500-900 x 60-150 mm, channelled, olive-green, tinged reddish, lower surface usually with few scattered prickles. Inflorescence with ±6-12 racemes, 0.8-1.0 m tall; racemes erect to suboblique, cylindric-conical, very dense; bracts deltoid-acute, 4-6 x 3-6 mm, 3-5-nerved. Flowers scarlet to reddish orange, 25-35 mm long, cylindric-ventricose; outer segments connate in basal quarter, inner segments free; pedicels 1-5 mm long. Anthers exserted 7-15 mm. Ovary ±6 x 2 mm; style exserted 10-15 mm. Fruit 17-20 x 11-12 mm, blue-grey.
More
Leaves in a compact rosette at the stem apex, spreading becoming recurved; lamina to 1 m long, up to 15 cm wide at the base, lanceolate-attenuate, deeply channelled, dull green often tinged reddish, without spots, usually with scattered reddish-brown prickles on the lower surface; margin with pungent deltoid reddish-brown teeth 4–6 mm long and 15–25 mm apart.
Perianth bright glossy red to reddish-orange or occasionally almost white, 20–32 mm long, c. 5 mm in diameter across the ovary, widening to c. 7 mm at the middle and narrowing slightly toward the mouth, cylindrical-ellipsoid; outer segments free for c. three-quarters, with tips recurved.
Inflorescences 1–4, erect to 1 m tall above the leaf rosette; peduncle stout, up to c. 6-branched, the lower branches rebranched; branches spreading upwards, subtended by brown scarious deltoid bracts to c. 10 × 15 mm, with scattered sterile bracts below each raceme.
Arborescent succulent, up to 4 m high. Leaves 500-900 x 60-150 mm, lower surface of leaves usually without prickles. Inflorescence 0.8-1.0 m high. Racemes very dense. Perianth ventricose. Flowers scarlet to reddish orange.
Racemes erect, 15–25 × 5–7 cm, cylindric, very densely flowered; bracts 4–6 × 4 mm, rounded, scarious, buff-coloured, reflexed; pedicels c. 1 mm long.
Stamens and stigma exserted c. 10 mm; stamens with filaments purplish, anthers orange, stigma orange-coloured.
Small tree, 2–6 m high, stem simple, clothed in withered leaf remains.
Capsule and seeds not seen.
Life form perennial
Growth form tree
Growth support free-standing
Foliage retention evergreen
Sexuality -
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 2.0 - 4.0
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway c3

Environment

Granite outcrops, usually on steep rocky slopes, in open Brachystegia glaucescens woodland, gregarious; at elevations from 450-1,500 metres.
Light -
Soil humidity 1-3
Soil texture 7-8
Soil acidity -
Soil nutriment -
Hardiness (USDA) 9-12

Usage

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

Cultivation

Can be grown by seedlings.
Mode seedlings
Germination duration (days) 30 - 180
Germination temperacture (C°) 21
Germination luminosity light
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Aloe excelsa unspecified picture

Distribution

Aloe excelsa world distribution map, present in Botswana, Mozambique, South Africa, Zambia, and Zimbabwe

Identifiers

LSID urn:lsid:ipni.org:names:529444-1
WFO ID wfo-0000758180
COL ID C3M4
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Aloe excelsa

Lower taxons

Aloe excelsa var. breviflora