Plants ranked as California Rare Plant Rank 2B are rare, threatened, or endangered in California but more common elsewhere. There are 9 taxa in the East Bay ranked 2B:
Carex comosa (bristly sedge)Cicuta maculata var. bolanderi
Limosella australis (delta mudwort)
Polemonium carneum (Oregon polemonium)
Potamogeton zosteriformis (eel-grass pondweed)
Scutellaria galericulata (marsh skullcap)
Senecio aphanactis (chaparral ragwort)
Stuckenia filiformis ssp. alpina (slender-leaved pondweed)
Viburnum ellipticum (oval-leaved viburnum)
