Simmondsia chinensis C.K.Schneid.

Jojoba (en)

Species

Angiosperms > Caryophyllales > Simmondsiaceae > Simmondsia

Characteristics

Shrubs to 2(–3) m, mostly densely branched; young branches hairy. Leaves dull pale green or gray-green, sometimes glaucous; petiole 0–2 mm; blade elliptic or oblong-ovate, (1.5–)2–5.5 × (0.5–)1–3 cm, thick-leathery (often becoming wrinkled when dry), base acute to obtuse, apex rounded, obtuse, or acute, surfaces sparsely hairy to glabrate. Staminate inflorescences: peduncles 0.2–2 cm, recurved; cymes 1–2 cm diam. Pistillate inflorescences: peduncle (pedicel in solitary flowers) 0.2–2 cm, recurved; bracts 3–4, linear-lanceolate or lanceolate, 2–10 mm. Pedicels: staminate 0–2 mm, pistillate usually absent. Staminate flowers greenish yellow; sepals 2–4 mm, densely hairy abaxially; stamen filaments 0.1–0.3 mm; anthers 1.5–2 mm. Pistillate flowers pale green, pendent; sepals (in fruit) triangular-ovate, basal 1/2 appressed, distal 1/2 abruptly narrowed and spreading, 1–2 cm, surfaces densely hairy; styles exerted. Capsules shiny greenish brown, 15–25 × 9–11 mm, apex rounded, usually apiculate. Seeds reddish brown or brown, 13–17 mm. 2n = 26.
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An evergreen thorny shrub. It grows 2.4 m high and spreads 1.8 m wide. It often has several stems. The young stems are hairy. The leaves are small and leathery. They are oblong and grey-green. The male and female flowers are on separate plants. The male flowers are cup shaped and yellow. They occur in clusters. The female flowers are bell shaped and greenish. They are in the axils of leaves. The fruit is a capsule with one seed. The seed or nut is about the size of an acorn. The seed is 12-19 mm long. The kernel is triangle shaped.
Life form perennial
Growth form shrub
Growth support free-standing
Foliage retention evergreen
Sexuality dioecy
Pollination anemogamy
Spread -
Mature width (meter) 1.9
Mature height (meter) 2.05
Root system tap-root
Rooting depth (meter) 0.3
Root diameter (meter) -
Flower color -
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Nitrogen fixer -
Photosynthetic pathway c3

Environment

It grows in desert regions. It needs a hot climate and well-drained dry soil. It needs full sun. It is very drought tolerant. It can tolerate frost. It grows in areas with an annual rainfall between 100-500 mm. It can grow in alkaline soils. It can grow in arid places. It grows in deserts. It grows in places with high heat and low moisture. It suits hardiness zones 9-12.
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Desert scrub, coastal sage scrub, alluvial fans, arroyo margins, rocky, gravelly, or sandy slopes; at elevations up to 1,500 metres. Well drained desert soils-sandy alluviums, coarse gravel and clay mixes and loams.
Desert scrub, coastal sage scrub, alluvial fans, arroyo margins, rocky, gravelly, or sandy slopes; at elevations up to 1,500 metres. Well drained desert soils-sandy alluviums, coarse gravel and clay mixes and loams.
Light 6-8
Soil humidity 2-5
Soil texture 3-6
Soil acidity 6-8
Soil nutriment -
Hardiness (USDA) 8-12

Usage

A coffee like drink is made from the ground seeds. The seeds are also eaten raw, parched or roasted. They are served with butter and salt. The roasted ground nuts are also mixed with the yolk or a hard boiled egg and boiled with water, sugar and a vanilla bean to make a chocolate like drink. The oil from the seed is used as salad oil and cooking oil.
Uses animal food beverage coffee substitute environmental use fodder food fuel gene source material medicinal oil poison social use vertebrate poison
Edible seeds
Therapeutic use Common cold (fruit), Eye infections (fruit), Pharyngitis (fruit), Skin ulcer (fruit), Dermatological Aid (unspecified), Cathartic (unspecified), Cancer (unspecified), Coffee (unspecified), Cold (unspecified), Emetic (unspecified), Hair (unspecified), Head (unspecified), Obesity (unspecified), Parturition (unspecified), Sore (unspecified), Sore(Throat) (unspecified), Wound (unspecified), Dysuria (unspecified), Eye (unspecified)
Human toxicity -
Animal toxicity -

Cultivation

Plants can be grown from seed.
Mode cuttings seedlings
Germination duration (days) 14 - 21
Germination temperacture (C°) 18 - 21
Germination luminosity -
Germination treatment soaking
Minimum temperature (C°) -
Optimum temperature (C°) 21 - 36
Size -
Vigor -
Productivity -

Images

Leaf

Simmondsia chinensis leaf picture by Matthew DreamsOfBunnies (cc-by-sa)
Simmondsia chinensis leaf picture by M Michael (cc-by-sa)
Simmondsia chinensis leaf picture by M Michael (cc-by-sa)

Fruit

Simmondsia chinensis fruit picture by Jay (cc-by-sa)

Distribution

Simmondsia chinensis world distribution map, present in Spain, Mexico, United States of America, and South Africa

Identifiers

LSID urn:lsid:ipni.org:names:236600-2
WFO ID wfo-0001219023
COL ID 6Z23G
BDTFX ID 168481
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Brocchia dichotoma Buxus californica Buxus chinensis Celastrus obtusatus Simmondsia chinensis