cottonwood Identification (Ozothamnus leptophyllus)

Check Ozothamnus leptophyllus for a compact, many-branched shrub form with very fine foliage.

• Leaves are narrow and linear, about 1/2 to 1 inch (1.5 to 2.5 cm) long, giving the plant a soft, feathery look.
• Foliage is crowded along the stems rather than widely spaced, so the branchlets look densely covered.
• Stems are slender and woody, with numerous short side branches that create a bushy outline.
• Flower heads are small and clustered near stem tips, appearing as tight groups rather than single large blooms.

Dense branching and very narrow leaves are the quickest visual clues.

Ozothamnus leptophyllus shows useful visual shifts in branching, stature, and reproductive structures.

• Young plant: Young plants are compact and upright, with slender stems carrying narrow leaves densely along the shoots and only limited side branching.
• Mature plant: Mature plants form a woody, many-branched shrub about 3-6 feet (0.9-1.8 m) tall, with a denser crown and more rigid branch structure.
• Flowering stage: At flowering, branch tips carry clustered small white flower heads, making the outer canopy look paler and more textured than nonflowering shoots.

Ozothamnus leptophyllus stays leafy through the year, so there is no leaf-drop phase that adds much to identification. The clearest seasonal clue is flowering, when clusters of small pale flower heads become visible above the fine foliage, usually from late spring into summer. After bloom, the drying flower heads can persist for a time, keeping a lighter, tufted look on branch tips.