Ceanothus integerrimus

Ptelea trifoliata photo © by Michael Plagens

Photographed at Mt. Ord, Mazatzal Mts., Maricopa Co., Arizona, USA. 21 July 2017.

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SHRUB: An intricately branched shrub with stiff branchlets and mostly less than 2 meters tall in Arizona. In upper elevation sycamore and pine woodlands.

UNARMED. No thorns, unlike similar shrubs in this family. Buck-brush is similar but is thorny.

LEAVES: Leaves are light green with often two or three conspicuous veins arising from the petiole. Alternate on the stem .

RANGE: Occurrence in Arizona is widespread, but spotty.

FRUIT: Hard fruits are three sided.

FLOWERS: Small, white flowers in dense, spike-like clusters. Each have five petals and are much visited by bees and other pollinators. Late spring bloomer.

Rhamnaceae -- Buckthorn Family

More Information:

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Arizona Naturalist
Sycamore Canyons
The Flora of Arizona's Sycamore Canyons


Copyright Michael J. Plagens, page created 18 Nov. 2019.