Ceanothus oliganthus is a species of shrub in the family Rhamnaceae known by the common name hairy ceanothus[2] or hairy-leaf ceanothus.[3]
The variety of this species known as jimbrush (var. sorediatus) is sometimes treated as a separate species.[4]
It occurs in California[5] and Baja California,[6] where it occurs through all of the coastal mountain ranges in dry habitat such as chaparral.
This is a large, erect shrub approaching 3 meters in maximum height.
The stipules (small leaf-like structures on the stems at the base of the leaf stem, are thin and fall off early.[3]
The evergreen leaves are alternately arranged and may be up to 4 centimeters long. They are dark green on top, paler and hairy on the underside, and are edged with glandular teeth. Leaves have 3 main veins rising from the base.[3] Leaves have a toothed edge.[3] The leaf is covered with short, soft hairs on the top.
Branchlets are flexible, not stiff.[3]
The inflorescence is a cluster or series of clusters of blue or purple flowers.
The fruit is a capsule which may be hairy or not, depending on variety.
The fruit is not horned.[3]
It blooms April to May.[3]
Ceanothus oliganthus is a species of shrub in the family Rhamnaceae known by the common name hairy ceanothus or hairy-leaf ceanothus.
The variety of this species known as jimbrush (var. sorediatus) is sometimes treated as a separate species.
