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Photo for species Simmondsia_chinensis

Jojoba is a wind-pollinated plant, which indicates it may have existed before insects. There are distinct male and female plants and wind brings pollen to female flowers rather than bees. The seeds of the jojoba have many uses including food for both humans and animals, medicines and cosmetics.

Photo Credit:
© Michael Wolf via Wikimedia Commons

Simmondsia chinensis

jojoba
Where is this species found?
States & Provinces: 
AZ, CA, UT
Special Considerations for Observing

 This species has separate male and female flowers. If you know whether the flowers you are observing are male or female (or both), please make a comment about it for that observation.

Note that individuals of this species with only male flowers will not produce fruit.

 

Which phenophases should I observe?
Leaves

Do you see...?

Young leaves
One or more young, unfolded leaves are visible on the plant. A leaf is considered "young" and "unfolded" once its entire length has emerged from a breaking bud, stem node or growing stem tip, so that the leaf stalk (petiole) or leaf base is visible at its point of attachment to the stem, but before the leaf has reached full size or turned the darker green color or tougher texture of mature leaves on the plant. Do not include fully dried or dead leaves.

How many young leaves are present?

Less than 3;3 to 10;11 to 100;101 to 1,000;1,001 to 10,000;More than 10,000

Flowers

Do you see...?

Flowers or flower buds
One or more fresh open or unopened flowers or flower buds are visible on the plant. Include flower buds or inflorescences that are swelling or expanding, but do not include those that are tightly closed and not actively growing (dormant). Also do not include wilted or dried flowers.

How many flowers and flower buds are present? For species in which individual flowers are clustered in flower heads, spikes or catkins (inflorescences), simply estimate the number of flower heads, spikes or catkins and not the number of individual flowers.

Less than 3;3 to 10;11 to 100;101 to 1,000;1,001 to 10,000;More than 10,000

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Open flowers
One or more open, fresh flowers are visible on the plant. Flowers are considered "open" when the reproductive parts (male stamens or female pistils) are visible between or within unfolded or open flower parts (petals, floral tubes or sepals). Do not include wilted or dried flowers.

What percentage of all fresh flowers (buds plus unopened plus open) on the plant are open? For species in which individual flowers are clustered in flower heads, spikes or catkins (inflorescences), estimate the percentage of all individual flowers that are open.

Less than 5%;5-24%;25-49%;50-74%;75-94%;95% or more

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Fruits

Do you see...?

Fruits
One or more fruits are visible on the plant. For Simmondsia chinensis, the fruit is a capsule that changes from green to light brown or red-brown and splits open to expose the seed, or drops from the plant before splitting. Do not include empty capsules that have already dropped their seeds.

How many fruits are present?

Less than 3;3 to 10;11 to 100;101 to 1,000;1,001 to 10,000;More than 10,000

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Ripe fruits
One or more ripe fruits are visible on the plant. For Simmondsia chinensis, a fruit is considered ripe when it has turned light brown or red-brown and has split open to expose the seed, or when it readily drops from the plant when touched. Do not include empty capsules that have already dropped their seeds.

What percentage of all fruits (unripe plus ripe) on the plant are ripe?

Less than 5%;5-24%;25-49%;50-74%;75-94%;95% or more

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Recent fruit or seed drop
One or more mature fruits or seeds have dropped or been removed from the plant since your last visit. Do not include obviously immature fruits that have dropped before ripening, such as in a heavy rain or wind, or empty fruits that had long ago dropped all of their seeds but remained on the plant.

How many mature fruits have dropped seeds or have completely dropped or been removed from the plant since your last visit?

Less than 3;3 to 10;11 to 100;101 to 1,000;1,001 to 10,000;More than 10,000

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