Flower spike with diagnostic 5-hooked fruits; Bolsa Chica State Ecological Reserve, Huntington Beach, CA.10-02-11. © Joan Avise

Five-hook Bassia

Bassia hyssopifolia

Chenopodiaceae

Origin: Europe

Grows all over California in alkaline soil in waste places with moisture. The tiny flowers have no petals, the calyx is 5-lobed, incurved with a hook on the back of each sepal.  The leaves and flowers are green and hairy.  It is closely related to Kochia, Russian Thistle, and Lamb's quarters, all exotics.  The plant contains potassium oxalate and can make animals ill if eaten in quantity. The hooked fruits are dispersed by becoming lodged in the fur of animals. 

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Flowers have no petals; calyx 5-lobed, incurved with a hook on the back of each sepal; Bolsa Chica State Ecological Reserve, Huntington Beach, CA.10-02-11. © Joan Avise

Leaves hairy. Bolsa Chica State Ecological Reserve, Huntington Beach, CA. 10-02-11. © Joan Avise

Bolsa Chica State Ecological Reserve, Huntington Beach, CA.10-02-11. © Joan Avise

1-2' annual of moist alkaline soil, throughout CA.; Bolsa Chica State Ecological Reserve, Huntington Beach, CA.10-02-11. © Joan Avise

Plant branches from base; Bolsa Chica State Ecological Reserve, Huntington Beach, CA.10-02-11. © Joan Avise

Under attack by black aphids. Bolsa Chica State Ecological Reserve, Huntington Beach, CA.10-02-11. © Joan Avise

Talbert Reg Park, Costa Mesa, 7-15-12. © Ron Vanderhoff.

Talbert Reg Park, Costa Mesa, 7-15-12. © Ron Vanderhoff.

Talbert Reg Park, Costa Mesa, 7-15-12. © Ron Vanderhoff.